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authorJeffrey H. Kingston <jeff@it.usyd.edu.au>2010-09-14 20:37:19 +0000
committerJeffrey H. Kingston <jeff@it.usyd.edu.au>2010-09-14 20:37:19 +0000
commit5f8db516b71f01513b7772f6008020dbecc1f88b (patch)
tree3f21ea75ffbd40fcd53bf1609782763af3953002 /doc/user
parent162643f981292504f375a7f834d408a4a0fa7f46 (diff)
downloadlout-5f8db516b71f01513b7772f6008020dbecc1f88b.tar.gz
Lout 3.23 tag.3.23
git-svn-id: http://svn.savannah.nongnu.org/svn/lout/tags/3.23@16 9365b830-b601-4143-9ba8-b4a8e2c3339c
Diffstat (limited to 'doc/user')
-rw-r--r--doc/user/README13
-rw-r--r--doc/user/all2
-rw-r--r--doc/user/bas_par16
-rw-r--r--doc/user/bas_star16
-rw-r--r--doc/user/bgr_boxs4
-rw-r--r--doc/user/bgr_colo6
-rw-r--r--doc/user/dia9
-rw-r--r--doc/user/dia_intr4
-rw-r--r--doc/user/dia_node8
-rw-r--r--doc/user/dia_summ9
-rw-r--r--doc/user/equ_disp6
-rw-r--r--doc/user/preface2
-rw-r--r--doc/user/prg6
-rw-r--r--doc/user/str_cros69
-rw-r--r--doc/user/str_indx25
-rw-r--r--doc/user/str_larg4
-rw-r--r--doc/user/tbl_intr9
-rw-r--r--doc/user/tbl_mult2
-rw-r--r--doc/user/typ_apdf23
-rw-r--r--doc/user/typ_book6
-rw-r--r--doc/user/user.ps7070
21 files changed, 164 insertions, 7135 deletions
diff --git a/doc/user/README b/doc/user/README
index e03e324..706b31f 100644
--- a/doc/user/README
+++ b/doc/user/README
@@ -6,10 +6,11 @@ type the command
lout all > op
-in this directory. This must be done six times to completely
-resolve all cross references, although the PostScript file op is
-printable after the first run. Auxiliary files with .li and .ld
-suffixes will be created in this directory.
+in this directory. Owing to some unfortunate page breaks in the
+early runs, this must be done seven times to completely resolve
+all cross references, although the PostScript file op is printable
+after the first run. Auxiliary files with .li and .ld suffixes
+will be created in this directory.
The first run will produce a large number of error messages,
nearly all beginning with "unresolved cross reference". These
@@ -31,7 +32,7 @@ repeated failure to converge, caused by footnotes and floating figures
close to large unbreakable displays.
A copy of the final PostScript output file (A4 paper size) is
-stored at "ftp://ftp.cs.su.oz.au/jeff/lout/lout-3.19.user.ps.gz".
+stored at "ftp://ftp.cs.su.oz.au/jeff/lout/lout-3.23.user.ps.gz".
Jeffrey H. Kingston
-3 June 2000
+24 June 2000
diff --git a/doc/user/all b/doc/user/all
index 46c35f5..e0f239c 100644
--- a/doc/user/all
+++ b/doc/user/all
@@ -21,7 +21,7 @@ Lout
Document Formatting System
}
@Author { Jeffrey H. Kingston }
- @Edition { Version 3.22
+ @Edition { Version 3.23
June, 2000 }
@Publisher {
Copyright @CopyRight 1991, 2000 Jeffrey H. Kingston,
diff --git a/doc/user/bas_par1 b/doc/user/bas_par1
index de3da37..0cee5f8 100644
--- a/doc/user/bas_par1
+++ b/doc/user/bas_par1
@@ -24,8 +24,8 @@ new line. If you are using it to create single lines, you need the
The @Code "@DP" `display paragraph' symbol produces a somewhat larger
dp. @Index @Code "@DP"
vertical space, equal to the amount used before and after displays
-(Section {@NumberOf displays}), with no indent. To get even larger
-vertical spaces, use @Code "@DP" repeatedly. Another symbol,
+(Section {@NumberOf displays}), with no indent. To get even more
+space, use @Code "@DP" repeatedly. Another symbol,
{@Code "@LOP"}, leaves a paragraph break the size of the gap left
lop. @Index @Code "@LOP"
outside (that is, before and after) lists (Section {@NumberOf lists}). This
@@ -57,7 +57,7 @@ column for a heading and at least two lines of text. If so, @Code "@CNP"
does nothing; if not, @Code "@CNP" causes a new page or column to be begun,
like {@Code "@NP"}. The recommended arrangement is
@ID @OneRow @Code {
-"end of previous part."
+# "end of previous part."
"@DP"
"@CNP"
"@Heading { A Heading }"
diff --git a/doc/user/bas_star b/doc/user/bas_star
index ef65eb6..d2c6653 100644
--- a/doc/user/bas_star
+++ b/doc/user/bas_star
@@ -99,15 +99,15 @@ paragraph symbol. Lout will ordinarily take notice of how many spaces you type
between words (Section {@NumberOf spaces}), but it will mimic the spacing rules
of two other systems, troff and @TeX, if you prefer (Section {@NumberOf white}).
@PP
-When Lout runs, you might see some error messages beginning with
+When Lout runs, you might see some error messages containing the words
error.messages @Index { error messages }
-`unresolved cross reference' -- not on file @Code "intro" above, but on
-more complicated ones (anything with a footnote, for example). These
-just mean that you have to run the @Code "lout" command again to finish off
-the complicated things (Section {@NumberOf cross}), and they will gradually
-go away. Of course, if you see error messages about missing braces, unknown
-symbols, and so on, you need to revise your file. Lout will tell you the
-line number of the problem, and how far along the line it is.
+`unresolved cross reference' and `no destination point' -- not on file
+@Code "intro" above, but on more complicated ones (anything with a footnote,
+for example). These just mean that you have to run the @Code "lout" command
+again to finish off the complicated things (Section {@NumberOf cross}), and
+they will gradually go away. Of course, if you see error messages about
+missing braces, unknown symbols, and so on, you need to revise your file. Lout
+will tell you the line number of the problem, and how far along the line it is.
@PP
@BI { WARNING: } Lout allows documents to cause arbitrary system commands
to be executed. These typically do useful things such as format computer
diff --git a/doc/user/bgr_boxs b/doc/user/bgr_boxs
index 39c6460..54b78a3 100644
--- a/doc/user/bgr_boxs
+++ b/doc/user/bgr_boxs
@@ -55,7 +55,9 @@ large everything is: as far as Lout is concerned, the line always
has width zero. If you draw really thick lines you might need a larger
margin and more space near the box. The default value of @Code linewidth
is empty, which means to use whatever width the PostScript interpreter
-in your output device thinks is a good default value.
+in your output device thinks is a good default value. The special
+value @Code "none" for @Code "linewidth" ensures that no line is drawn
+around the box at all.
@PP
There is also a @Code "paint" option which paints a background of the
nominated colour:
diff --git a/doc/user/bgr_colo b/doc/user/bgr_colo
index 4a48fb9..08d8d2a 100644
--- a/doc/user/bgr_colo
+++ b/doc/user/bgr_colo
@@ -44,5 +44,9 @@ nominal colour can look quite different on screen and on paper. The
standard Lout @Code "@SetColour" symbol can provide many more colours
setcolour. @Index @Code "@SetColour"
@Cite { $kingston1995lout.expert}, although they must be specified
-using numbers rather than names.
+using numbers rather than names. For example,
+@ID @Code "{ 0.5 0.5 1.0 } @SetColour Hello"
+prints @Code Hello in a colour containing red at intensity 0.5, green
+at intensity 0.5, and blue at intensity 1.0, which turns out, in the
+strange world of colour coordinates, to be a light blue.
@End @Section
diff --git a/doc/user/dia b/doc/user/dia
index 6462c88..9b0f8f9 100644
--- a/doc/user/dia
+++ b/doc/user/dia
@@ -9,9 +9,10 @@ diag. @Index { @@Diag }
Starting with Version 3.18 of Lout, the @@Diag symbol was enhanced with
the {@Code "@ANode"}, {@Code "@BNode"}, and {@Code "@CNode"} symbols
described in Section {@NumberOf dia_node}, and with the symbols for
-syntax diagrams described in Section {@NumberOf dia_synt}. These
-enhancements are upwardly compatible, unless the user has defined
-symbols with these same names and used them within diagrams.
+syntax diagrams described in Section {@NumberOf dia_synt}.
+#These
+#enhancements are upwardly compatible, unless the user has defined
+#symbols with these same names and used them within diagrams.
@LP
Prior to Version 3.09 of Lout, this chapter described a symbol called
fig. @Index @Code "@Fig"
@@ -35,7 +36,7 @@ diag. @Index @Code "@Diag"
// @Link from { B } to { D }
// @Arrow from { E } to { D }
}
-@@Diag offers nodes and links, arrows, labels, positioning using coordinates,
+@@Diag offers nodes and links, arrows, labels, coordinates,
tree diagrams, and syntax diagrams.
@BeginSections
@Include { dia_intr }
diff --git a/doc/user/dia_intr b/doc/user/dia_intr
index 52a9d49..4f1ee40 100644
--- a/doc/user/dia_intr
+++ b/doc/user/dia_intr
@@ -26,9 +26,7 @@ This provides everything you need for making diagrams.
The result of the @@Diag symbol is an object in the usual way. A diagram
is commonly made into a centred display, like this:
@ID @OneRow @Code {
-"@CentredDisplay @Diag {"
-" ..."
-"}"
+"@CentredDisplay @Diag { ... }"
}
or into a floating figure, like this:
@ID @OneRow @Code {
diff --git a/doc/user/dia_node b/doc/user/dia_node
index 8980978..4fd6159 100644
--- a/doc/user/dia_node
+++ b/doc/user/dia_node
@@ -279,6 +279,14 @@ to the first value again; this is why a single value is applied to all
segments. Section {@NumberOf dia_summ} shows how each of the
standard shapes is divided into segments.
@PP
+The node symbols of @Code "@Diag" are quite separate symbols from the
+three basic box symbols of Section {@NumberOf boxes}. Although much
+is the same, one obvious difference between the two is that to get no
+outline in those boxes you use @Code { "linewidth { none }" }, whereas
+to get no outline here you use @Code { "outlinestyle { noline }" }. The
+basic boxes can only draw the outline solid or not at all, and their
+options have been kept simple to reflect that.
+@PP
Nodes may be painted any of the colours listed in Section
{@NumberOf colour}, using the @Code "paint" option:
@ID @OneRow {
diff --git a/doc/user/dia_summ b/doc/user/dia_summ
index 4539785..8bf3b1d 100644
--- a/doc/user/dia_summ
+++ b/doc/user/dia_summ
@@ -862,10 +862,12 @@ A:: @Circle /0.8c |1.5c B:: @Circle /2f
Here is the list of abbreviations for the standard paths (note
that @Code curve and @Code acurve are the same). Each
path also has an abbreviation which adds a forward arrow:
-@ID @Tab
- @Fmta { @Col @Code { path "{" A "}" } ! @Col @Code "@"B ! @Col @Code "@"C }
+@DP
+@Tab
+ @Fmta { @Col { @DisplayIndent @Wide & @Code { path "{" A "}" } } !
+ @Col @Code "@"B ! @Col @Code "@"C }
{
-@Rowa
+@FirstRowa
A { line }
B { Line }
C { Arrow }
@@ -942,6 +944,7 @@ path also has an abbreviation which adds a forward arrow:
B { UWrapCurve }
C { UWrapCurveArrow }
}
+@DP
Here is the complete list of options to the @Code "@Link" symbol. The
options related to {@Code xlabel}, {@Code ylabel}, and {@Code zlabel}
have been omitted where they are the same as the {@Code linklabel} options.
diff --git a/doc/user/equ_disp b/doc/user/equ_disp
index 0167b8d..ea4af47 100644
--- a/doc/user/equ_disp
+++ b/doc/user/equ_disp
@@ -48,10 +48,10 @@ is called
@ID @Code "@RawCentredAlignedNumberedDisplay"
By leaving out some or all of {@Code Raw}, {@Code Aligned}, and
{@Code Numbered}, and by changing or leaving out {@Code Centred},
-we get all these combinations. Here
+we get all these combinations. The two displays
numbereddisplay. @Index @Code "@NumberedDisplay"
aligneddisplay. @Index @Code "@AlignedDisplay"
-then is how the two displays given earlier were made:
+given earlier were made like this:
@ID @OneRow @Code {
"... a first example of a numbered display:"
"@BeginAlignedDisplays"
@@ -89,7 +89,7 @@ Section {@NumberOf displays}, and the recommended solution was to
use a list. However, there are no aligned or numbered (in this sense)
lists.
@PP
-To solve this problem, each display symbol has a `raw' version, which
+Fortunately, each display symbol has a `raw' version, which
means that no space is inserted above or below the display. Instead,
raw.displays @Index { raw displays }
you must insert it yourself using paragraph symbols:
diff --git a/doc/user/preface b/doc/user/preface
index 9569cab..375999e 100644
--- a/doc/user/preface
+++ b/doc/user/preface
@@ -18,7 +18,7 @@ gnu. @Index { GNU Public License }
primary source is directory
@ID @Code "ftp://ftp.cs.usyd.edu.au/jeff/lout"
in which may be found a gzipped tar file containing the main distribution
-(currently {@Code "lout-3.22.tar.gz"}), and various other things including
+(currently {@Code "lout-3.23.tar.gz"}), and various other things including
a PostScript version of this guide. The distribution contains source code,
libraries, documentation, license, and installation instructions.
@PP
diff --git a/doc/user/prg b/doc/user/prg
index 792124c..d22a7b2 100644
--- a/doc/user/prg
+++ b/doc/user/prg
@@ -75,6 +75,12 @@ pod. @Index { Pod (for Perl) printing }
C { "@Pod" }
D { varying }
E { No }
+@Rowb
+ A { Python }
+ B { python }
+ C { "@Python" }
+ D { varying }
+ E { No }
}
C and C++ are handled together since, for formatting purposes, they
differ only in that C++ has some additional keywords plus an extra
diff --git a/doc/user/str_cros b/doc/user/str_cros
index 7eb74c3..4bb391d 100644
--- a/doc/user/str_cros
+++ b/doc/user/str_cros
@@ -1,5 +1,5 @@
@Section
- @Title { Cross references }
+ @Title { Cross references and links }
@Tag { cross }
@Begin
@PP
@@ -109,4 +109,71 @@ when switching from one document to another, by removing file
lout.li @Index { @Code lout.li file }
{@Code "lout.li"}. You should also remove this file if your document
changes radically -- from a report to a book, say.
+@PP
+PDF viewers and recent versions of PostScript viewers offer a high-tech
+version of cross references called {@I links}, which allow the user to
+click on, say, the entry for a section in a table of contents and be
+immediately transported to the page on which that section begins. In
+principle, anything could happen when a link is clicked on, but Lout
+only offers the kind of link that transports the user to some page
+in the current document.
+@PP
+Lout automatically makes a link out of every page number it prints
+in the table of contents and in the index, and every reference
+citation. You can also insert your own links, using the
+@Code "@CrossLink" symbol like this:
+@ID @Code "See cross @CrossLink { Section @NumberOf cross }"
+The @Code "@CrossLink" symbol consumes two objects, one to its left and the
+other to its right, and we'll explain each of these now.
+@PP
+The object on the right (@Code "Section @NumberOf cross" in our
+example) can be an arbitrary Lout object: you don't have to have
+@Code "@NumberOf" or @Code "@PageOf" inside it, although in practice
+you often will, since it makes sense to put a low-tech link wherever
+you have a high-tech one, for the benefit of readers of paper
+versions. This object on the right is what is printed, so the
+overall result in this example is
+@ID { See cross @CrossLink { Section @NumberOf cross } }
+But, beyond this, clicking anywhere on this object on the screen will
+invoke the link, transporting the user to some other page.
+@PP
+The object on the left (@Code cross in our example) must be a tag
+that is acceptable to the @Code "@PageOf" symbol described earlier
+in this section. The link will transport the user who clicks on
+it to the page that @Code "@PageOf" would point to if given that
+tag. You can ensure that your tag is acceptable in the usual
+ways: by using {@Code "@PageMark"}, or by giving the tag as the
+@Code "@Tag" option of a chapter, section, etc. as described earlier
+in this section.
+@PP
+A moment ago we said that the object to the right of @Code "@CrossLink"
+is what is printed by the @Code "@CrossLink" symbol. This is true by
+default, but there is a @Code "@CrossLinkFormat" option in the setup
+files which allows you to change the appearance of this printed
+object. (See Section {@NumberOf setup} for a general description
+of setup files and their options.) The default value of
+@Code "@CrossLinkFormat" is
+@ID @Code "@CrossLinkFormat { @Body }"
+Within the @Code "@CrossLinkFormat" option, the @Code "@Body" symbol
+stands for the object to the right of {@Code "@CrossLink"}. It is
+actually the value of @Code "@CrossLinkFormat" that is printed, so,
+for example, changing it to
+@ID @Code "@CrossLinkFormat { blue @Colour @Underline @Body }"
+causes all link objects to be printed in blue and underlined. If
+you want a special format just for one link, there is a @Code "@Format"
+option to @Code "@CrossLink" that overrides {@Code "@CrossLinkFormat"}:
+@ID @Code "cross @CrossLink @Format { @CurveBox @Body } { Section @NumberOf cross }"
+You can also give the formatting you want directly, since the object
+to the right of @Code "@CrossLink" can be an arbitrary Lout object:
+@ID @Code "cross @CrossLink @CurveBox { Section @NumberOf cross }"
+However, in this form the @Code "@CrossLinkFormat" setup file option
+is still applied.
+@PP
+At present, the @Code "@CrossLink" symbol behaves as though a @Code "@OneCol"
+symbol encloses the object on its right. This means that that object
+is kept together on one line of any enclosing paragraph, and inter-word
+spaces within it are not adjusted along with the inter-word spaces of
+any enclosing paragraph. This deficiency might be corrected in the
+future, but meanwhile it means that it is best to keep your objects
+on the right short.
@End @Section
diff --git a/doc/user/str_indx b/doc/user/str_indx
index 3c15c09..b75c8db 100644
--- a/doc/user/str_indx
+++ b/doc/user/str_indx
@@ -40,14 +40,15 @@ automatically.
The object preceding the @Code "@Index" symbol is a compulsory key
which is used for sorting the index entries,
@FootNote {
-The collating sequence used to decide what comes after what is the
-collating sequence used by the @Code "memcmp()" library routine (just
-the underlying binary character codes). Alternatively, the version
-of Lout installed on your system may use the @Code "strcoll()"
-collating sequence, which understands accented characters and whose
-effect depends on your locale. To find out whether @Code "strcoll()"
-is in use or not, type @Code "lout -V" which prints out several lines
-of this and similar information.
+The collating sequence used to decide what comes after what is either
+the collating sequence used by the @Code "memcmp()" library routine (just
+the underlying binary character codes), or else the one used by the
+@Code "strcoll()" collating sequence, which understands accented
+characters and whose effect depends on your locale. To find out
+whether @Code "strcoll()" is in use or not, type @Code "lout -V" which
+prints out several lines of this and similar information, including
+information about command line flags to switch between the two kinds of
+collation.
@PP
If the sorting you get turns out to be not what you expected, the
first thing to try is the replacement of all accented letters in index
@@ -55,10 +56,10 @@ keys by unaccented ones. Sorting is quite an intractable problem: even
if @Code "strcoll()" gets the sorting right for one language, there still
remains the problem of sorting multilingual indexes.
@PP
-Lout's database mechanism assumes that the @I tab character is collated
-before any character that could appear in a sorting key. It seems that
-there are a few collating sequences in existence which do not satisfy this
-condition, and in these cases Lout will fail to produce the correct index.
+Older versions of Lout assumed that the @I tab character was collated
+before any character that could appear in a sorting key, causing
+problems when this was not so. Recent versions of Lout no longer
+make this assumption.
}
but which is not itself printed anywhere. It is best to construct these
sorting keys from lower-case letters and the . character only, beginning
diff --git a/doc/user/str_larg b/doc/user/str_larg
index 618e69f..2d244ae 100644
--- a/doc/user/str_larg
+++ b/doc/user/str_larg
@@ -48,7 +48,9 @@ This arrangement is reminiscent of the one for lists, and, as for
lists, there may be no paragraph or new page symbols before, between,
or after the sections. To change the gap between sections, you need
to change the @Code "@SectionGap" option in the setup file, as explained
-in Chapter {@NumberOf types}.
+in Chapter {@NumberOf types}. If you just want a new page before one
+section, not all sections, place @Code "@NP" at the very end of the
+previous section, just before its {@Code "@End @Section"}.
@PP
The @Code "@Begin ... @End @Section" that brackets the body of each
section may be abbreviated to {@Code "{ ... }"}. However, the long
diff --git a/doc/user/tbl_intr b/doc/user/tbl_intr
index 3f1f557..1c9160e 100644
--- a/doc/user/tbl_intr
+++ b/doc/user/tbl_intr
@@ -88,11 +88,10 @@ The result of the @Code "@Tbl" symbol is an object. As usual with
Lout, this object may appear at any point in the document,
@FootNote {
In rare cases, when the table occupies an entire paragraph but is not
-displayed, a bug in the current version of Basser Lout causes the second
-column to appear much too far to the right. Until the problem is fixed,
-the first thing to try if this occurs is to replace the very first
-row symbol ({@Code "@Row"}, {@Code "@Rowa"}, {@Code "@Rowb"}, etc.) by
-{@Code "@FirstRow"}, {@Code "@FirstRowa"}, {@Code "@FirstRowb"},
+displayed, a bug in Basser Lout causes the second column to appear much
+too far to the right. If this occurs, replace
+the very first row symbol ({@Code "@Row"}, {@Code "@Rowa"}, {@Code "@Rowb"},
+etc.) by {@Code "@FirstRow"}, {@Code "@FirstRowa"}, {@Code "@FirstRowb"},
etc. There are also {@Code "@HeaderFirstRow"}, {@Code "@HeaderFirstRowa"},
{@Code "@HeaderFirstRowb"} etc. symbols for replacing {@Code "@HeaderRow"},
{@Code "@HeaderRowa"}, {@Code "@HeaderRowb"}, etc., if required.
diff --git a/doc/user/tbl_mult b/doc/user/tbl_mult
index 3b83b8b..b523223 100644
--- a/doc/user/tbl_mult
+++ b/doc/user/tbl_mult
@@ -122,7 +122,7 @@ on each page. There is nothing equivalent to running headers
at the bottom of the page -- nothing that would allow you to
insert a rule after the last line of each page, but not
elsewhere. (However, if you are using the @Code "@Table"
-symbol, its @Code "@Enclose" option can be used to do this.)
+symbol, its @Code "@Format" option can be used to do this.)
@PP
To prevent page breaks within a table, precede the @Code "@Tbl"
symbol by {@Code "@OneRow"}:
diff --git a/doc/user/typ_apdf b/doc/user/typ_apdf
index 3203384..531f9c9 100644
--- a/doc/user/typ_apdf
+++ b/doc/user/typ_apdf
@@ -10,12 +10,19 @@ pdf. @Index { PDF documents }
@ID @Code "lout -PDF simple > simple.pdf"
No other changes are required.
@PP
-The PDF output is superior to PostScript in providing links: when viewed
-with a PDF viewer, entries in tables of contents and indexes can be
-clicked on and this transports the viewer to the part of the document
-referenced by the link. (Recent versions of PostScript support this
-feature too, but Lout's PostScript doesn't.) However, the PDF output
-produced by Lout is inferior at graphics: the advanced features of the
-@Code "@Diag" and @Code "@Graph" packages do not produce any output. One
-can still format documents that contain them, but the results are disappointing.
+When viewed with a PDF viewer, entries in tables of contents and indexes
+can be clicked on and this transports the viewer to the part of the document
+referenced by the link, as described in
+cross @CrossLink { Section {@NumberOf cross} }. Recent versions of PostScript
+support this feature too, via the @I pdfmark feature, and Lout's PostScript
+contains links expressed in this way. Unfortunately, few PostScript viewers
+know how to handle these links; those that don't just ignore them.
+@PP
+Regrettably, the PDF output produced by Lout is inferior at graphics: the
+advanced features of the @Code "@Diag" and @Code "@Graph" packages do not
+produce any output. One can still format documents that contain them, but
+the results are disappointing. The only way to get the best of everything
+is to produce PostScript, and then either pass it through a `distillation'
+program to produce PDF, or else view it with a PostScript viewer that
+understands links.
@End @Section
diff --git a/doc/user/typ_book b/doc/user/typ_book
index 59d81e5..fd83483 100644
--- a/doc/user/typ_book
+++ b/doc/user/typ_book
@@ -307,8 +307,7 @@ as at the end of the book.
Within the @Code "book" setup file there is a @Code "@BookSetup"
booksetup. @Index @Code "@BookSetup"
symbol whose options control the appearance of features specific to books
-(in other words, the features described in this section). Here is a
-representative sample of these options, showing their default values:
+(in other words, the features described in this section):
@ID @OneRow @Code {
"@Use { @BookSetup"
" # @TitlePageFont { Helvetica Base }"
@@ -325,7 +324,8 @@ representative sample of these options, showing their default values:
" # @ChapterInContents { Yes }"
"}"
}
-Section {@NumberOf setup} explains how to make your own setup file and
+This is just a representative sample of these options. Section
+{@NumberOf setup} explains how to make your own setup file and
change its options; here we just explain what the options do.
@PP
@Code "@TitlePageFont" is the font used on the title
diff --git a/doc/user/user.ps b/doc/user/user.ps
deleted file mode 100644
index 9cbcb3d..0000000
--- a/doc/user/user.ps
+++ /dev/null
@@ -1,7070 +0,0 @@
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-%%Creator: Basser Lout Version 3.20 (April 2000)
-%%CreationDate: Mon Apr 24 13:08:28 2000
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- moveto lineto stroke grestore } bind def
-/in { 1440 mul } def
-/cm { 567 mul } def
-/pt { 20 mul } def
-/em { 120 mul } def
-/sp { louts mul } def
-/vs { loutv mul } def
-/ft { loutf mul } def
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-/LoutGraphic {
- /louts exch def
- /loutv exch def
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- /ymark exch def
- /xmark exch def
- /ysize exch def
- /xsize exch def
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-/LoutGr2 { gsave translate LoutGraphic gsave } def
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-/LoutFont
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-/LoutRecode {
- { findfont dup length dict begin
- {1 index /FID ne {def} {pop pop} ifelse} forall
- /Encoding exch def
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- }
- stopped pop
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-/BeginEPSF {
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- /languagelevel where
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-% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tabf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% PostScript @SysPrependGraphic file for @Tab %
-% %
-% To assist in avoiding name clashes, the names %
-% of all these symbols begin with "ltab". %
-% %
-% Jeffrey H. Kingston %
-% 24 September 1991 %
-% 22 December 1992 %
-% %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-% linewidth ltabhs -
-% horizontal single line
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-{ 0 0 moveto xsize 0 lineto
- setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabhsp -
-% horizontal single line with projecting ends
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-{ 0 0 moveto xsize 0 lineto
- setlinewidth 2 setlinecap stroke
-} def
-
-% linewidth ltabhd -
-% horizontal double line
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-{ dup dup
- 0 0 moveto xsize 0 lineto
- 0 exch 3 mul moveto xsize exch 3 mul lineto
- setlinewidth 0 setlinecap stroke
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-
-% linewidth ltabhdb -
-% horizontal double line below mark
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-{ dup dup
- 0 0 moveto xsize 0 lineto
- 0 exch -3 mul moveto xsize exch -3 mul lineto
- setlinewidth 0 setlinecap stroke
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-
-% linewidth ltabhdnw -
-% horizontal double line with northwest corner
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-{ dup dup dup dup
- 0 0 moveto xsize 0 lineto
- xsize exch 3 mul moveto
- -3 mul exch 3 mul lineto
- -3 mul 0 lineto
- setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdne -
-% horizontal double line with northeast corner
-/ltabhdne
-{ dup dup dup dup
- 0 0 moveto xsize 0 lineto
- 0 exch 3 mul moveto
- 3 mul xsize add exch 3 mul lineto
- 3 mul xsize add 0 lineto
- setlinewidth 0 setlinejoin 2 setlinecap stroke
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-
-% linewidth ltabhdsw -
-% horizontal double line with southwest corner
-/ltabhdsw
-{ dup dup dup dup
- 0 0 moveto xsize 0 lineto
- xsize exch -3 mul moveto
- -3 mul exch -3 mul lineto
- -3 mul 0 lineto
- setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabhdse -
-% horizontal double line with southeast corner
-/ltabhdse
-{ dup dup dup dup
- 0 0 moveto xsize 0 lineto
- 0 exch -3 mul moveto
- 3 mul xsize add exch -3 mul lineto
- 3 mul xsize add 0 lineto
- setlinewidth 0 setlinejoin 2 setlinecap stroke
-} def
-
-% linewidth ltabvs -
-% vertical single line
-/ltabvs
-{ 0 0 moveto 0 ysize lineto
- setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabvd -
-% vertical double line
-/ltabvd
-{ dup dup
- 0 0 moveto 0 ysize lineto
- -3 mul 0 moveto -3 mul ysize lineto
- setlinewidth 0 setlinecap stroke
-} def
-
-% linewidth ltabvdr -
-% vertical double line to right of mark
-/ltabvdr
-{ dup dup
- 0 0 moveto 0 ysize lineto
- 3 mul 0 moveto 3 mul ysize lineto
- setlinewidth 0 setlinecap stroke
-} def
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-%%BeginResource: procset LoutTblPrependGraphic
-% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tblf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% PostScript @SysPrependGraphic file for @Tbl Jeffrey H. Kingston %
-% Version 1.0 June 1998 %
-% %
-% To assist in avoiding name clashes, the names of all symbols %
-% defined here begin with "ltbl". %
-% %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-% painting (i.e. filling): - ltblwhite - (etc.)
-/ltblnopaint { } def
-/ltblnochange { fill } def
-/ltbldarkblue { 0.0 0.0 0.5 setrgbcolor fill } def
-/ltblblue { 0.0 0.0 1.0 setrgbcolor fill } def
-/ltbllightblue { 0.5 0.5 1.0 setrgbcolor fill } def
-/ltbldarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def
-/ltblgreen { 0.0 1.0 0.0 setrgbcolor fill } def
-/ltbllightgreen { 0.5 1.0 0.5 setrgbcolor fill } def
-/ltbldarkred { 0.5 0.0 0.0 setrgbcolor fill } def
-/ltblred { 1.0 0.0 0.0 setrgbcolor fill } def
-/ltbllightred { 1.0 0.5 0.5 setrgbcolor fill } def
-/ltbldarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def
-/ltblcyan { 0.0 1.0 1.0 setrgbcolor fill } def
-/ltbllightcyan { 0.5 1.0 1.0 setrgbcolor fill } def
-/ltbldarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def
-/ltblmagenta { 1.0 0.0 1.0 setrgbcolor fill } def
-/ltbllightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def
-/ltbldarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def
-/ltblyellow { 1.0 1.0 0.0 setrgbcolor fill } def
-/ltbllightyellow { 1.0 1.0 0.5 setrgbcolor fill } def
-/ltbldarkgray { 0.2 0.2 0.2 setrgbcolor fill } def
-/ltblgray { 0.5 0.5 0.5 setrgbcolor fill } def
-/ltbllightgray { 0.8 0.8 0.8 setrgbcolor fill } def
-/ltbldarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def
-/ltblgrey { 0.5 0.5 0.5 setrgbcolor fill } def
-/ltbllightgrey { 0.8 0.8 0.8 setrgbcolor fill } def
-/ltblblack { 0.0 0.0 0.0 setrgbcolor fill } def
-/ltblwhite { 1.0 1.0 1.0 setrgbcolor fill } def
-%%EndResource
-
-%%BeginResource: procset LoutFigPrependGraphic
-% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/figf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% PostScript @SysPrependGraphic file for @Fig Jeffrey H. Kingston %
-% Version 2.0 (includes CIRCUM label) January 1992 %
-% %
-% To assist in avoiding name clashes, the names of all symbols %
-% defined here begin with "lfig". However, this is not feasible %
-% with user-defined labels and some labels used by users. %
-% %
-% <point> is two numbers, a point. %
-% <length> is one number, a length %
-% <angle> is one number, an angle in degrees %
-% <dashlength> is one number, the preferred length of a dash %
-% %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
- /handleerror
- {
- { /Times-Roman findfont 8 pt scalefont setfont
- 0 setgray 4 pt 4 pt moveto
- $error /errorname get
- dup lfigdict exch known
- { lfigdict exch get }
- { 30 string cvs } ifelse
- show
- ( Command: ) show
- $error /command get 30 string cvs show
- } stopped {} if
- showpage stop
- } def
-end
-
-% concat strings: <string> <string> lfigconcat <string>
-% must be defined outside lfigdict since used in lfigpromotelabels
-/lfigconcat
-{ 2 copy length exch length add string
- dup 0 4 index putinterval
- dup 3 index length 3 index putinterval
- 3 1 roll pop pop
-} def
-
-% <string> lfigdebugprint -
-% must be defined outside lfigdict since used in arbitrary places
-% /lfigdebugprint
-% { print
-% (; operand stack:\n) print
-% count copy
-% count 2 idiv
-% { ==
-% (\n) print
-% } repeat
-% (\n) print
-% } def
-
-/lfigdict 120 dict def
-lfigdict begin
-
-% error messages
-/dictfull (dictfull error: too many labels?) def
-/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def
-/execstackoverflow (execstackoverflow error: figure nested too deeply?) def
-/limitcheck (limitcheck error: figure nested too deeply or too large?) def
-/syntaxerror (syntaxerror error: syntax error in text of figure?) def
-/typecheck (typecheck error: syntax error in text of figure?) def
-/undefined (undefined error: unknown or misspelt label?) def
-/VMError (VMError error: run out of memory?) def
-
-% push pi onto stack: - lfigpi <num>
-/lfigpi 3.14159 def
-
-% arc directions
-/clockwise false def
-/anticlockwise true def
-
-% maximum of two numbers: <num> <num> lfigmax <num>
-/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def
-
-% minimum of two numbers: <num> <num> lfigmin <num>
-/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def
-
-% add two points: <point> <point> lfigpadd <point>
-/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def
-
-% subtract first point from second: <point> <point> lfigpsub <point>
-/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% max two points: <point> <point> lfigpmax <point>
-/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def
-
-% min two points: <point> <point> lfigpmin <point>
-/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def
-
-% scalar multiplication: <point> <num> lfigpmul <point>
-/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def
-
-% point at angle and distance: <point> <length> <angle> lfigatangle <point>
-/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def
-
-% angle from one point to another: <point> <point> lfigangle <angle>
-/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-% distance between two points: <point> <point> lfigdistance <length>
-/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def
-
-% difference in x coords: <point> <point> lfigxdistance <length>
-/lfigxdistance { pop 3 1 roll pop sub } def
-
-%difference in y coords: <point> <point> lfigydistance <length>
-/lfigydistance { 3 1 roll pop sub exch pop } def
-
-% stroke a solid line: <length> <dashlength> lfigsolid -
-/lfigsolid
-{ pop pop [] 0 setdash stroke
-} def
-
-% stroke a lfigdashed line: <length> <dashlength> lfigdashed -
-/lfigdashed
-{ 2 copy div 2 le 1 index 0 le or
- { exch pop 1 pt lfigmax [ exch dup ] 0 setdash }
- { dup [ exch 4 2 roll 2 copy div
- 1 sub 2 div ceiling dup 4 1 roll
- 1 add mul sub exch div ] 0 setdash
- } ifelse stroke
-} def
-
-% stroke a lfigcdashed line: <length> <dashlength> lfigcdashed -
-/lfigcdashed
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt lfigmax [ exch dup ] dup 0 get 2 div setdash }
- { dup [ 4 2 roll exch 2 copy exch div
- 2 div ceiling div 1 index sub
- ] exch 2 div setdash
- } ifelse stroke
-} def
-
-% stroke a dotted line: <length> <dashlength> lfigdotted -
-/lfigdotted
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash }
- { 1 index exch div ceiling div
- [ 0 3 2 roll ] 0 setdash
- } ifelse stroke
-} def
-
-% stroke a noline line: <length> <dashlength> lfignoline -
-/lfignoline
-{ pop pop
-} def
-
-% painting (i.e. filling): - lfigwhite - (etc.)
-/lfignopaint { } def
-/lfignochange { fill } def
-/lfigdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def
-/lfigblue { 0.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightblue { 0.5 0.5 1.0 setrgbcolor fill } def
-/lfigdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def
-/lfiggreen { 0.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def
-/lfigdarkred { 0.5 0.0 0.0 setrgbcolor fill } def
-/lfigred { 1.0 0.0 0.0 setrgbcolor fill } def
-/lfiglightred { 1.0 0.5 0.5 setrgbcolor fill } def
-/lfigdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def
-/lfigcyan { 0.0 1.0 1.0 setrgbcolor fill } def
-/lfiglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def
-/lfigdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def
-/lfigmagenta { 1.0 0.0 1.0 setrgbcolor fill } def
-/lfiglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def
-/lfigdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def
-/lfigyellow { 1.0 1.0 0.0 setrgbcolor fill } def
-/lfiglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def
-/lfigdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggray { 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgray { 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def
-/lfiggrey { 0.5 0.5 0.5 setrgbcolor fill } def
-/lfiglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def
-/lfigblack { 0.0 0.0 0.0 setrgbcolor fill } def
-/lfigwhite { 1.0 1.0 1.0 setrgbcolor fill } def
-
-% line caps (and joins, not currently used)
-/lfigbutt 0 def
-/lfiground 1 def
-/lfigprojecting 2 def
-/lfigmiter 0 def
-/lfigbevel 2 def
-
-% shape and labels of the @Box symbol
-/lfigbox
-{
- 0 0 /SW lfigpointdef
- xsize 0 /SE lfigpointdef
- xsize ysize /NE lfigpointdef
- 0 ysize /NW lfigpointdef
- SE 0.5 lfigpmul /S lfigpointdef
- NW 0.5 lfigpmul /W lfigpointdef
- W SE lfigpadd /E lfigpointdef
- S NW lfigpadd /N lfigpointdef
- NE 0.5 lfigpmul /CTR lfigpointdef
- [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef
- SW SE NE NW SW
-} def
-
-% shape and labels of the @CurveBox symbol
-/lfigcurvebox
-{
-
- xsize 0.5 mul ysize 0.5 mul /CTR lfigpointdef
- xsize 0.5 mul 0 /S lfigpointdef
- xsize ysize 0.5 mul /E lfigpointdef
- xsize 0.5 mul ysize /N lfigpointdef
- 0 ysize 0.5 mul /W lfigpointdef
-
- xmark 0.293 mul xmark 0.293 mul /SW lfigpointdef
- xsize xmark 0.293 mul sub xmark 0.293 mul /SE lfigpointdef
- xsize xmark 0.293 mul sub ysize xmark 0.293 mul sub /NE lfigpointdef
- xmark 0.293 mul ysize xmark 0.293 mul sub /NW lfigpointdef
-
- [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef
-
- xmark 0
- xsize xmark sub 0
- [ xsize xmark sub xmark ]
- xsize xmark
- xsize ysize xmark sub
- [ xsize xmark sub ysize xmark sub ]
- xsize xmark sub ysize
- xmark ysize
- [ xmark ysize xmark sub ]
- 0 ysize xmark sub
- 0 xmark
- [ xmark xmark ]
- xmark 0
-} def
-
-% shadow of the @ShadowBox symbol
-% its shape and labels are done, somewhat inaccurately, with lfigbox
-/lfigshadow
-{ xmark 2 mul 0 moveto xsize 0 lineto
- xsize ysize xmark 2 mul sub lineto
- xsize xmark sub ysize xmark 2 mul sub lineto
- xsize xmark sub xmark lineto
- xmark 2 mul xmark lineto closepath fill
-} def
-
-% shape and labels of the @Square symbol
-/lfigsquare
-{
- xsize ysize 0.5 lfigpmul /CTR lfigpointdef
- CTR xsize xsize ysize ysize lfigpmax 0.5 lfigpmul lfigpadd /NE lfigpointdef
- CTR 0 0 CTR NE lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef
- CTR 0 0 CTR NE lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef
- CTR 0 0 CTR NE lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef
- SW 0.5 lfigpmul SE 0.5 lfigpmul lfigpadd /S lfigpointdef
- NW 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /N lfigpointdef
- SW 0.5 lfigpmul NW 0.5 lfigpmul lfigpadd /W lfigpointdef
- SE 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /E lfigpointdef
- [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef
- SW SE NE NW SW
-} def
-
-% shape and labels of the @Diamond symbol
-/lfigdiamond
-{
- xsize 0 0.5 lfigpmul /S lfigpointdef
- 0 ysize 0.5 lfigpmul /W lfigpointdef
- S W lfigpadd /CTR lfigpointdef
- CTR W lfigpadd /N lfigpointdef
- CTR S lfigpadd /E lfigpointdef
- [ xsize ysize 0.5 lfigpmul /lfigdiamondcircum cvx ] lfigcircumdef
- S E N W S
-} def
-
-% shape and labels of the @Ellipse symbol
-/lfigellipse
-{
- xsize 0 0.5 lfigpmul /S lfigpointdef
- 0 ysize 0.5 lfigpmul /W lfigpointdef
- S W lfigpadd /CTR lfigpointdef
- CTR W lfigpadd /N lfigpointdef
- CTR S lfigpadd /E lfigpointdef
- CTR xsize 0 0.3536 lfigpmul lfigpadd 0 ysize 0.3536 lfigpmul lfigpadd /NE lfigpointdef
- 0 ysize 0.3536 lfigpmul CTR xsize 0 0.3536 lfigpmul lfigpadd lfigpsub /SE lfigpointdef
- xsize 0 0.3536 lfigpmul CTR lfigpsub 0 ysize 0.3536 lfigpmul lfigpadd /NW lfigpointdef
- 0 ysize 0.3536 lfigpmul xsize 0 0.3536 lfigpmul CTR lfigpsub lfigpsub /SW lfigpointdef
- [ xsize ysize 0.5 lfigpmul /lfigellipsecircum cvx ] lfigcircumdef
- S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S
-} def
-
-% shape and labels of the @Circle symbol
-/lfigcircle
-{
- xsize ysize 0.5 lfigpmul /CTR lfigpointdef
- CTR xsize 0 ysize 0 lfigpmax 0.5 lfigpmul lfigpadd /E lfigpointdef
- CTR 0 0 CTR E lfigdistance 45 lfigatangle lfigpadd /NE lfigpointdef
- CTR 0 0 CTR E lfigdistance 90 lfigatangle lfigpadd /N lfigpointdef
- CTR 0 0 CTR E lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef
- CTR 0 0 CTR E lfigdistance 180 lfigatangle lfigpadd /W lfigpointdef
- CTR 0 0 CTR E lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef
- CTR 0 0 CTR E lfigdistance 270 lfigatangle lfigpadd /S lfigpointdef
- CTR 0 0 CTR E lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef
- [ S E lfigpsub /lfigellipsecircum cvx ] lfigcircumdef
- S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S
-} def
-
-% shape and labels of the @HLine and @HArrow symbols
-/lfighline
-{
- 0 ymark lfigprevious /FROM lfigpointdef
- xsize ymark lfigprevious /TO lfigpointdef
-} def
-
-% shape and labels of the @VLine and @VArrow symbols
-/lfigvline
-{
- xmark ysize lfigprevious /FROM lfigpointdef
- xmark 0 lfigprevious /TO lfigpointdef
-} def
-
-% points of a polygon around base with given no of sides, vert init angle:
-% <sides> <angle> figpolygon <point> ... <point>
-/lfigpolygon
-{ xsize ysize 0.5 lfigpmul /CTR lfigpointdef
- 90 sub CTR 2 copy lfigmax 5 3 roll
- [ 4 copy pop /lfigpolycircum cvx ] lfigcircumdef
- exch dup 360 exch div exch
- 1 1 3 2 roll
- { 4 string cvs (P) exch lfigconcat cvn
- 6 copy pop pop lfigatangle 2 copy 10 2 roll
- 3 2 roll lfigpointdef
- dup 3 1 roll add exch
- } for
- pop lfigatangle
-} def
-
-% next array element: <array> <index> lfiggetnext <array> <index> <any> true
-% or <array> <index> false
-/lfiggetnext
-{ 2 copy exch length ge
- { false }
- { 2 copy get exch 1 add exch true } ifelse
-} def
-
-% check whether thing is number: <any> lfigisnumbertype <any> <bool>
-/lfigisnumbertype
-{ dup type dup
- /integertype eq exch /realtype eq or
-} def
-
-% check whether thing is an array: <any> lfigisarraytype <any> <bool>
-/lfigisarraytype { dup type /arraytype eq } def
-
-% get next item: <array> <index> lfiggetnextitem <array> <index> 0
-% or <array> <index> <array> 1
-% or <array> <index> <point> 2
-/lfiggetnextitem
-{ lfiggetnext
- { lfigisarraytype
- { 1
- }
- { lfigisnumbertype
- { 3 1 roll
- lfiggetnext
- { lfigisnumbertype
- { 4 3 roll exch 2
- }
- { pop 3 2 roll pop 0
- } ifelse
- }
- { 3 2 roll pop 0
- } ifelse
- }
- { pop 0
- } ifelse
- } ifelse
- }
- { 0
- } ifelse
-} def
-
-% set arc path: bool x1 y1 x2 y2 x0 y0 lfigsetarc <angle> <angle> <dist>
-% the path goes from x1 y1 to x2 y2 about centre x0 y0,
-% anticlockwise if bool is true else clockwise.
-% The orientations of backwards pointing and forwards pointing
-% arrowheads are returned in the two angles, and
-% the length of the arc is returned in <dist>.
-/lfigsetarc
-{
- 20 dict begin
- matrix currentmatrix 8 1 roll
- 2 copy translate 2 copy 8 2 roll
- 4 2 roll lfigpsub 6 2 roll lfigpsub
- dup /y1 exch def dup mul /y1s exch def
- dup /x1 exch def dup mul /x1s exch def
- dup /y2 exch def dup mul /y2s exch def
- dup /x2 exch def dup mul /x2s exch def
-
- y1s y2s eq
- { -1
- }
- { y1s x2s mul y2s x1s mul sub y1s y2s sub div
- } ifelse
- /da exch def
-
- x1s x2s eq
- { -1
- }
- { x1s y2s mul x2s y1s mul sub x1s x2s sub div
- } ifelse
- /db exch def
-
- da 0 gt db 0 gt and
- { /LMax da sqrt db sqrt lfigmax def
- /scalex da sqrt LMax div def
- /scaley db sqrt LMax div def
- scalex scaley scale
- 0 0 LMax
- 0 0 x1 scalex mul y1 scaley mul lfigangle
- 0 0 x2 scalex mul y2 scaley mul lfigangle
- 2 copy eq { 360 add } if
- 2 copy 8 2 roll
- 5 index { arc } { arcn } ifelse
- 2 index 1 index
- { 90 sub } { 90 add } ifelse
- dup sin scaley mul exch cos scalex mul atan
- 2 index 2 index
- { 90 add } { 90 sub } ifelse
- dup sin scaley mul exch cos scalex mul atan
- 5 2 roll % res1 res2 ang1 ang2 anticlockwise
- { exch sub } { sub } ifelse
- dup 0 le { 360 add } if lfigpi mul LMax mul 180 div
- }
- { 0 0 x1 y1 lfigdistance 0 0 x2 y2 lfigdistance eq
- 0 0 x1 y1 lfigdistance 0 gt and
- { 0 0
- 0 0 x1 y1 lfigdistance
- 0 0 x1 y1 lfigangle
- 0 0 x2 y2 lfigangle
- 2 copy eq { 360 add } if
- 2 copy 8 2 roll
- 5 index { arc } { arcn } ifelse
- 2 index 1 index
- { 90 sub } { 90 add } ifelse
- 2 index 2 index
- { 90 add } { 90 sub } ifelse
- 5 2 roll % res1 res2 ang1 ang2 clockwise
- { exch sub } { sub } ifelse
- dup 0 le { 360 add } if lfigpi mul 0 0 x1 y1 lfigdistance mul 180 div
- }
- { x2 y2 lineto pop
- x2 y2 x1 y1 lfigangle
- x1 y1 x2 y2 lfigangle
- x1 y1 x2 y2 lfigdistance
- } ifelse
- } ifelse
- 4 -1 roll setmatrix
- end
-} def
-
-% lfigsetcurve: set up a Bezier curve from x0 y0 to x3 y3
-% and return arrowhead angles and length of curve (actually 0)
-% x0 y0 x1 y1 x2 y2 x3 y3 lfigsetcurve <angle> <angle> <length>
-/lfigsetcurve
-{ 8 copy curveto pop pop
- lfigangle
- 5 1 roll
- 4 2 roll lfigangle
- exch
- 0
-} def
-
-% lfigpaintpath: paint a path of the given shape
-% /paint [ shape ] lfigpaintpath -
-/lfigpaintpath
-{
- 10 dict begin
- 0 newpath
- /prevseen false def
- /curveseen false def
- { lfiggetnextitem
- dup 0 eq { pop exit }
- { 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /curveseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr
- lfigsetcurve pop pop pop
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- lfigsetarc pop pop pop
- } ifelse
- }
- { xcurr ycurr lineto
- } ifelse
- }
- { xcurr ycurr moveto
- } ifelse
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop pop pop cvx exec
- end
-} def
-
-% stroke a path of the given shape in the given linestyle and dash length.
-% Return the origin and angle of the backward and forward arrow heads.
-% dashlength /linestyle [shape] lfigdopath [<point> <angle>] [<point> <angle>]
-/lfigdopath
-{
- 10 dict begin
- 0
- /prevseen false def
- /curveseen false def
- /backarrow [] def
- /fwdarrow [] def
- {
- lfiggetnextitem
- dup 0 eq { pop exit }
- {
- 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /prevseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { newpath xprev yprev moveto
- curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr lfigsetcurve
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- lfigsetarc
- } ifelse
- }
- { xcurr ycurr lineto
- xcurr ycurr xprev yprev lfigangle dup 180 sub
- xprev yprev xcurr ycurr lfigdistance
- } ifelse
- 6 index 6 index cvx exec
- [ xprev yprev 5 -1 roll ]
- backarrow length 0 eq
- { /backarrow exch def }
- { pop } ifelse
- [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def
- } if
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop
- pop pop pop pop
- backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse
- fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse
- end
-} def
-
-% lfigdoarrow: draw an arrow head of given form
-% dashlength /lstyle /pstyle hfrac height width [ <point> <angle> ] lfigdoarrow -
-/lfigdoarrow
-{ matrix currentmatrix 8 1 roll
- dup 0 get 1 index 1 get translate
- 2 get rotate
- [ 2 index neg 2 index 0 0
- 3 index 3 index neg
- 1 index 10 index mul 0
- 7 index 7 index ]
- 4 1 roll pop pop pop
- dup 3 1 roll
- gsave lfigpaintpath grestore lfigdopath pop pop
- setmatrix
-} def
-
-% arrow head styles
-/lfigopen 0.0 def
-/lfighalfopen 0.5 def
-/lfigclosed 1.0 def
-
-% stroke no arrows, forward, back, and both
-/lfignoarrow { pop pop pop pop pop pop pop pop } def
-/lfigforward { 7 -1 roll lfigdoarrow pop } def
-/lfigback { 8 -2 roll pop lfigdoarrow } def
-/lfigboth { 8 -1 roll 7 copy lfigdoarrow pop 7 -1 roll lfigdoarrow } def
-
-% lfigprevious: return previous point on path
-/lfigprevious
-{ lfigisnumbertype
- { 2 copy }
- { lfigisarraytype
- { 2 index 2 index }
- { 0 0 }
- ifelse
- } ifelse
-} def
-
-% label a point in 2nd top dictionary: <point> /name lfigpointdef -
-/lfigpointdef
-{
- % (Entering lfigpointdef) lfigdebugprint
- [ 4 2 roll transform
- /itransform cvx ] cvx
- currentdict end
- 3 1 roll
- % currentdict length currentdict maxlength lt
- % { def }
- % { exec moveto (too many labels) show stop }
- % ifelse
- def
- begin
- % (Leaving lfigpointdef) lfigdebugprint
-} def
-
-% promote labels from second top to third top dictionary
-% <string> lfigpromotelabels -
-/lfigpromotelabels
-{
- % (Entering lfigpromotelabels) lfigdebugprint
- currentdict end exch currentdict end
- { exch 20 string cvs 2 index
- (@) lfigconcat exch lfigconcat cvn exch def
- } forall pop begin
- % (Leaving lfigpromotelabels) lfigdebugprint
-} def
-
-% show labels (except CIRCUM): - lfigshowlabels -
-/lfigshowlabels
-{
- % (Entering lfigshowlabels) lfigdebugprint
- currentdict end
- currentdict
- { 1 index 20 string cvs (CIRCUM) search % if CIRCUM in key
- { pop pop pop pop pop }
- { pop cvx exec 2 copy
- newpath 1.5 pt 0 360 arc
- 0 setgray fill
- /Times-Roman findfont 8 pt scalefont setfont
- moveto 0.2 cm 0.1 cm rmoveto 20 string cvs show
- }
- ifelse
- } forall
- begin
- % (Leaving lfigshowlabels) lfigdebugprint
-} def
-
-% fix an angle to 0 <= res < 360: <angle> lfigfixangle <angle>
-/lfigfixangle
-{
- % (Entering lfigfixangle) lfigdebugprint
- { dup 0 ge { exit } if
- 360 add
- } loop
- { dup 360 lt { exit } if
- 360 sub
- } loop
- % (Leaving lfigfixangle) lfigdebugprint
-} def
-
-% find point on circumference of box: alpha a b lfigboxcircum x y
-/lfigboxcircum
-{
- % (Entering lfigboxcircum) lfigdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
- 0 0 a b lfigangle /theta exch def
-
- % if alpha <= theta, return (a, a*tan(alpha))
- alpha theta le
- { a a alpha sin mul alpha cos div }
- {
- % else if alpha <= 180 - theta, return (b*cot(alpha), b)
- alpha 180 theta sub le
- { b alpha cos mul alpha sin div b }
- {
- % else if alpha <= 180 + theta, return (-a, -a*tan(alpha))
- alpha 180 theta add le
- { a neg a neg alpha sin mul alpha cos div }
- {
- % else if alpha <= 360 - theta, return (-b*cot(alpha), -b)
- alpha 360 theta sub le
- { b neg alpha cos mul alpha sin div b neg }
- {
- % else 360 - theta <= alpha, return (a, a*tan(alpha))
- a a alpha sin mul alpha cos div
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving lfigboxcircum) lfigdebugprint
-} def
-
-% find quadratic roots (assume a != 0): a b c lfigqroots x1 x2 2
-% or x2 1
-% or 0
-/lfigqroots
-{
- 4 dict begin
- /c exch def
- /b exch def
- /a exch def
- /disc b b mul 4 a c mul mul sub def
- disc 0 lt
- { 0
- }
- { disc 0 eq
- { b neg 2 a mul div
- 1
- }
- { b neg disc sqrt add 2 a mul div
- b neg disc sqrt sub 2 a mul div
- 2
- }
- ifelse
- }
- ifelse
- end
-} def
-
-% work our which quadrant: <angle> lfigquadrant <0-3>
-/lfigquadrant
-{ dup 90 lt
- { pop 0
- }
- { dup 180 lt
- { pop 1
- }
- { 270 lt
- { 2
- }
- { 3
- } ifelse
- } ifelse
- } ifelse
-} def
-
-% find curvebox circum, assuming upper right quadrant: alpha a b xmk lfigcb x y
-/lfigcb
-{
- 6 dict begin
- /xmk exch def
- /b exch def
- /a exch def
- /alpha exch def
- /theta1 0 0 a b xmk sub lfigangle def
- /theta2 0 0 a xmk sub b lfigangle def
- alpha theta1 le
- { % if alpha <= theta1, return (a, a*tan(alpha))
- a a alpha sin mul alpha cos div
- }
- { alpha theta2 ge
- { % else if alpha > theta2, return (b*cot(alpha), b)
- b alpha cos mul alpha sin div b
- }
- {
- % else, return the intersection of line and circle
- a xmk sub b xmk sub xmk 0 0 alpha lfigcircleintersect
- dup 0 eq
- { % should never happen, just return any reasonable point
- pop
- a b 0.5 lfigpmul
- }
- { 1 eq
- { % should never happen, just return the point on top of stack
- }
- { % the usual case, two points on stack, return the larger
- lfigpmax
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- end
-} def
-
-% find point on circumference of curvebox: alpha a b xmk lfigcurveboxcircum x y
-/lfigcurveboxcircum
-{
- % (Entering lfigcurveboxcircum) lfigdebugprint
- 5 dict begin
- /xmk exch def
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
-
- % work out which quadrant we are in, and reflect accordingly
- /quad alpha lfigquadrant def
- quad 0 eq
- { alpha a b xmk lfigcb
- }
- { quad 1 eq
- { 180 alpha sub a b xmk lfigcb exch neg exch
- }
- { quad 2 eq
- { alpha 180 sub a b xmk lfigcb neg exch neg exch
- }
- { 360 alpha sub a b xmk lfigcb neg
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving lfigcurveboxcircum) lfigdebugprint
-} def
-
-% find point on circumference of diamond: alpha a b lfigdiamondcircum x y
-/lfigdiamondcircum
-{
- % (Entering lfigdiamondcircum) lfigdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
- b alpha cos abs mul a alpha sin abs mul add /denom exch def
- a b mul alpha cos mul denom div
- a b mul alpha sin mul denom div
- end
- % (Leaving lfigdiamondcircum) lfigdebugprint
-} def
-
-% find point on circumference of ellipse: alpha a b lfigellipsecircum x y
-/lfigellipsecircum
-{
- % (Entering lfigellipsecircum) lfigdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- lfigfixangle /alpha exch def
- b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def
- a b mul alpha cos mul denom div
- a b mul alpha sin mul denom div
- end
- % (Leaving lfigellipsecircum) lfigdebugprint
-} def
-
-% find point of intersection of two lines each defined by two points
-% x1 y1 x2 y2 x3 y3 x4 y4 lfiglineintersect x y
-/lfiglineintersect
-{
- % (Entering lfiglineintersect) lfigdebugprint
- 13 dict begin
- /y4 exch def
- /x4 exch def
- /y3 exch def
- /x3 exch def
- /y2 exch def
- /x2 exch def
- /y1 exch def
- /x1 exch def
- x2 x1 sub /x21 exch def
- x4 x3 sub /x43 exch def
- y2 y1 sub /y21 exch def
- y4 y3 sub /y43 exch def
- y21 x43 mul y43 x21 mul sub /det exch def
-
- % calculate x
- y21 x43 mul x1 mul
- y43 x21 mul x3 mul sub
- y3 y1 sub x21 mul x43 mul add
- det div
-
- % calculate y
- x21 y43 mul y1 mul
- x43 y21 mul y3 mul sub
- x3 x1 sub y21 mul y43 mul add
- det neg div
-
- end
- % (Leaving lfiglineintersect) lfigdebugprint
-} def
-
-% find point on circumference of polygon
-% alpha radius num theta lfigpolycircum x y
-/lfigpolycircum
-{
- % (Entering lfigpolycircum) lfigdebugprint
- 13 dict begin
- /theta exch def
- /num exch def
- /radius exch def
- /alpha exch def
-
- % calculate delta, the angle from theta to alpha
- alpha theta sub lfigfixangle
-
- % calculate the angle which is the multiple of 360/num closest to delta
- 360 num div div truncate 360 num div mul theta add /anglea exch def
-
- % calculate the next multiple of 360/num after anglea
- anglea 360 num div add /angleb exch def
-
- % intersect the line through these two points with the alpha line
- anglea cos anglea sin angleb cos angleb sin
- 0 0 alpha cos 2 mul alpha sin 2 mul
- lfiglineintersect radius lfigpmul
-
- end
- % (Leaving lfigpolycircum) lfigdebugprint
-} def
-
-% find point of intersection of a point and a circle
-% x0 y0 r x1 y1 theta lfigcircleintersect xa ya xb yb 2
-% or xb yb 1
-% or 0
-/lfigcircleintersect
-{
- % (Entering lfigcircleintersect) lfigdebugprint
- 15 dict begin
- /theta exch def
- /y1 exch def
- /x1 exch def
- /r exch def
- /y0 exch def
- /x0 exch def
-
- % if sin(theta) = 0 then line is horizontal and y must be y1
- theta sin abs 0.00001 lt
- {
- /a 1 def
- /b -2 x0 mul def
- /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def
- a b c lfigqroots dup
- 0 eq
- { pop
- 0
- }
- { 1 eq
- { y1 1
- }
- { y1 exch y1 2
- } ifelse
- } ifelse
- }
- {
- /ct theta cos theta sin div def
- /a ct ct mul 1 add def
- /b ct x1 x0 sub mul y1 add y0 sub 2 mul def
- /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def
- a b c lfigqroots dup
- 0 eq
- { pop
- 0
- }
- { 1 eq
- { y1 add /yb exch def
- yb y1 sub ct mul x1 add /xb exch def
- xb yb 1
- }
- { y1 add /ya exch def
- ya y1 sub ct mul x1 add /xa exch def
- y1 add /yb exch def
- yb y1 sub ct mul x1 add /xb exch def
- xa ya xb yb 2
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving lfigcircleintersect) lfigdebugprint
-} def
-
-% add CIRCUM operator with this body: <array> lfigcircumdef -
-/lfigcircumdef
-{ % (Entering lfigcircumdef) lfigdebugprint
- /CIRCUM exch cvx
- currentdict end
- 3 1 roll
- % currentdict length currentdict maxlength lt
- % { def }
- % { exec moveto (too many labels) show stop }
- % ifelse
- def
- begin
- % (Leaving lfigcircumdef) lfigdebugprint
-} def
-
-end
-%%EndResource
-
-%%BeginResource: procset LoutGraphPrependGraphic
-% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/graphf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% PostScript @SysPrependGraphic file for @Graph (Version 1.0) %
-% %
-% Version 1.0 by Jeffrey H. Kingston, December 1993. %
-% %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
- /handleerror
- {
- { /Times-Roman findfont 8 pt scalefont setfont
- 0 setgray 4 pt 4 pt moveto
- $error /errorname get
- dup lgraphdict exch known
- { lgraphdict exch get }
- { 30 string cvs } ifelse
- show
- ( Command: ) show
- $error /command get 30 string cvs show
- } stopped {} if
- showpage stop
- } def
-end
-
-/lgraphdict 200 dict def
-lgraphdict begin
-
-% error messages
-/dictfull (dictfull error) def
-/dictstackoverflow (dictstackoverflow error) def
-/execstackoverflow (execstackoverflow error: expression too complex?) def
-/limitcheck (limitcheck error: graph too complex or too large?) def
-/syntaxerror (syntaxerror error: syntax error in text of graph?) def
-/typecheck (typecheck error: syntax error in text of graph?) def
-/undefined (undefined error: unknown or misspelt symbol?) def
-/rangecheck (rangecheck error: undefined expression (e.g. divide by zero)?) def
-/VMError (VMError error: run out of memory?) def
-
-% random number between x and y inclusive: x y dorand num
-/dorand { 1 index sub 1 add rand exch mod add } def
-
-% log to given base: base num dolog num
-/dolog { ln exch ln div } def
-
-% maximum of two numbers: <num> <num> max <num>
-/max { 2 copy gt { pop } { exch pop } ifelse } def
-
-% add two points: <point> <point> padd <point>
-/padd { exch 3 1 roll add 3 1 roll add exch } def
-
-% subtract first point from second: <point> <point> psub <point>
-/psub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% distance between two points: <point> <point> distance <length>
-/distance { psub dup mul exch dup mul add sqrt } def
-
-% point at angle and distance: <point> <length> <angle> atangle <point>
-/atangle { 2 copy cos mul 3 1 roll sin mul padd } def
-
-% angle from one point to another: <point> <point> angle <angle>
-/angle { psub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-
-% set up for line
-% - linesetup <length> <dashlength>
-/linesetup
-{ newpath
- xcurr ycurr trpoint xprev yprev trpoint
- 4 copy moveto lineto distance dashlength
-} def
-
-% set up for icon-avoiding line
-% - ilinesetup <length> <dashlength>
-/ilinesetup
-{ newpath
- xprev yprev trpoint xcurr ycurr trpoint 4 copy
- 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle
- 6 2 roll 4 2 roll
- 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle
- 4 copy moveto lineto distance dashlength
-} def
-
-
-% stroke a solid line: <length> <dashlength> solid -
-/solid
-{ pop pop [] 0 setdash linewidth setlinewidth stroke
-} def
-
-% stroke a dashed line: <length> <dashlength> dashed -
-/dashed
-{ 2 copy 2 mul le 1 index 0 le or
- { exch pop 1 pt max [ exch dup ] 0 setdash }
- { dup [ exch 4 2 roll 2 copy div
- 1 sub 2 div ceiling dup 4 1 roll
- 1 add mul sub exch div ] 0 setdash
- } ifelse linewidth setlinewidth stroke
-} def
-
-% stroke a cdashed line: <length> <dashlength> cdashed -
-/cdashed
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt max [ exch dup ] dup 0 get 2 div setdash }
- { dup [ 4 2 roll exch 2 copy exch div
- 2 div ceiling div 1 index sub
- ] exch 2 div setdash
- } ifelse linewidth setlinewidth stroke
-} def
-
-% stroke a dotted line: <length> <dashlength> dotted -
-/dotted
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt max [ exch 0 exch ] 0 setdash }
- { 1 index exch div ceiling div 0.99999 mul
- [ 0 3 2 roll ] 0 setdash
- } ifelse gsave 1 setlinecap linewidth setlinewidth stroke grestore newpath
-} def
-
-% stroke a noline line: <length> <dashlength> noline -
-/noline
-{ pop pop
-} def
-
-% stroke a y histogram: - yhisto -
-/yhisto
-{ xprev yleft trpoint yextra sub moveto
- xprev yprev trpoint lineto
- xcurr yprev trpoint lineto
- xcurr yleft trpoint yextra sub lineto
- linewidth setlinewidth stroke
-} def
-
-% stroke an x histogram: - xhisto -
-/xhisto
-{ xleft yprev trpoint exch xextra sub exch moveto
- xcurr yprev trpoint lineto
- xcurr ycurr trpoint lineto
- xleft ycurr trpoint exch xextra sub exch lineto
- linewidth setlinewidth stroke
-} def
-
-% stroke a surface y histogram: - surfaceyhisto -
-/surfaceyhisto
-{ firstpair
- { xprev yleft trpoint yextra sub moveto
- xprev yprev trpoint lineto
- }
- { xprev yprev trpoint moveto
- } ifelse
- xcurr yprev trpoint lineto
- lastpair
- { xcurr yleft trpoint yextra sub lineto
- }
- { xcurr ycurr trpoint lineto
- } ifelse
- linewidth setlinewidth stroke
-} def
-
-% stroke a surface x histogram: - surfacexhisto -
-/surfacexhisto
-{ firstpair
- { xleft yprev trpoint exch xextra sub exch moveto
- }
- { xprev yprev trpoint moveto
- } ifelse
- xcurr yprev trpoint lineto
- xcurr ycurr trpoint lineto
- lastpair
- { xleft ycurr trpoint exch xextra sub exch lineto
- } if
- linewidth setlinewidth stroke
-} def
-
-% stroke a filled y histogram: - filledyhisto -
-/filledyhisto
-{
- linewidth setlinewidth
- xprev yleft trpoint exch currentlinewidth 2 div add exch yextra sub moveto
- xprev yprev trpoint exch currentlinewidth 2 div add exch lineto
- xcurr yprev trpoint exch currentlinewidth 2 div sub exch lineto
- xcurr yleft trpoint exch currentlinewidth 2 div sub exch yextra sub lineto
- closepath fill
-} def
-
-% stroke a filled x histogram: - filledxhisto -
-/filledxhisto
-{
- linewidth setlinewidth
- xleft yprev trpoint currentlinewidth 2 div add exch xextra sub exch moveto
- xcurr yprev trpoint currentlinewidth 2 div add lineto
- xcurr ycurr trpoint currentlinewidth 2 div sub lineto
- xleft ycurr trpoint currentlinewidth 2 div sub exch xextra sub exch lineto
- closepath fill
-} def
-
-
-% cross: show a small cross
-/cross
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg symbolsize neg rmoveto
- symbolsize 2 mul symbolsize 2 mul rlineto
- 0 symbolsize -2 mul rmoveto
- symbolsize -2 mul symbolsize 2 mul rlineto
- [] 0 setdash stroke
-} def
-
-% plus: show a small plus
-/plus
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg 0 rmoveto
- symbolsize 2 mul 0 rlineto
- symbolsize neg symbolsize neg rmoveto
- 0 symbolsize 2 mul rlineto
- [] 0 setdash stroke
-} def
-
-% square: show a small square
-/square
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg symbolsize neg rmoveto
- symbolsize 2 mul 0 rlineto
- 0 symbolsize 2 mul rlineto
- symbolsize -2 mul 0 rlineto
- closepath [] 0 setdash stroke
-} def
-
-% filledsquare: show a small filled square
-/filledsquare
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg symbolsize neg rmoveto
- symbolsize 2 mul 0 rlineto
- 0 symbolsize 2 mul rlineto
- symbolsize -2 mul 0 rlineto
- closepath gsave [] 0 setdash stroke grestore fill
-} def
-
-% diamond: show a small diamond
-/diamond
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg 0 rmoveto
- symbolsize symbolsize neg rlineto
- symbolsize symbolsize rlineto
- symbolsize neg symbolsize rlineto
- closepath [] 0 setdash stroke
-} def
-
-% filleddiamond: show a small filled diamond
-/filleddiamond
-{ newpath
- xcurr ycurr trpoint moveto
- symbolsize neg 0 rmoveto
- symbolsize symbolsize neg rlineto
- symbolsize symbolsize rlineto
- symbolsize neg symbolsize rlineto
- closepath gsave [] 0 setdash stroke grestore fill
-} def
-
-% circle: show a small circle
-/circle
-{ newpath
- xcurr ycurr trpoint symbolsize 0 360 arc [] 0 setdash stroke
-} def
-
-% filledcircle: show a small filled circle
-/filledcircle
-{ newpath
- xcurr ycurr trpoint symbolsize 0 360 arc gsave [] 0 setdash stroke grestore fill
-} def
-
-% triangle: show a small triangle
-/triangle
-{ newpath
- xcurr ycurr trpoint moveto
- 0 symbolsize 1.5 mul rmoveto
- symbolsize neg symbolsize -2.5 mul rlineto
- symbolsize 2 mul 0 rlineto
- closepath [] 0 setdash stroke
-} def
-
-% filledtriangle: show a small filled triangle
-/filledtriangle
-{ newpath
- xcurr ycurr trpoint moveto
- 0 symbolsize 1.5 mul rmoveto
- symbolsize neg symbolsize -2.5 mul rlineto
- symbolsize 2 mul 0 rlineto
- closepath gsave [] 0 setdash stroke grestore fill
-} def
-
-
-%plog: like log only with a base, and protected from failing if <= 0
-% base x plog res
-/plog { dup 0 le { pop pop 0 } { ln exch ln div } ifelse } def
-
-% xtr: transform one x value logarithmically if xlog > 1
-% <num> xtr <num>
-/xtr
-{ xlog 1 gt
- { xlog exch plog
- } if
-} def
-
-% ytr: transform one y value logarithmically if ylog > 1
-% <num> ytr <num>
-/ytr
-{ ylog 1 gt
- { ylog exch plog
- } if
-} def
-
-% % trpoint: transform (x, y) in graph space into (x', y') in print space
-% % x y trpoint x' y'
-% /trpoint
-% { exch xtr trxmin sub trxmax trxmin sub div xwidth mul xextra add
-% exch ytr trymin sub trymax trymin sub div ywidth mul yextra add
-% } def
-
-
-% trpoint: transform (x, y) in graph space into (x', y') in print space
-% x y trpoint x' y'
-/trpoint
-{ exch xtr xdecr { trxmax exch sub } { trxmin sub } ifelse
- trxmax trxmin sub div xwidth mul xextra add
-
- exch ytr ydecr { trymax exch sub } { trymin sub } ifelse
- trymax trymin sub div ywidth mul yextra add
-} def
-
-
-% yonly: interpolate x values 1, 2, ... into data
-% [ data ] yonly [ newdata ]
-/yonly
-{ dup /tmp exch def
- length [ exch 1 exch 1 exch
- { dup tmp exch 1 sub get
- } for
- ]
-} def
-
-% xonly: interpolate y values 1, 2, ... into data
-% [ data ] yonly [ newdata ]
-/xonly
-{ dup /tmp exch def
- length [ exch 1 exch 1 exch
- { dup tmp exch 1 sub get exch
- } for
- ]
-} def
-
-% xandy: no interpolation of x or y values
-% [ data ] xandy [ data ]
-/xandy {} def
-
-
-% expstringwidth: calculate width of string containing optional exponent
-% <string> expstringwidth <width>
-/expstringwidth
-{ (^) search
- { exch pop stringwidth pop exch stringwidth pop 0.7 mul add }
- { stringwidth pop }
- ifelse
-} def
-
-% expstringshow: show string containing optional exponent
-% <string> expstringshow -
-/expstringshow
-{ (^) search
- { exch pop show 0 0.5 ft rmoveto
- gsave currentfont 0.7 scalefont setfont show grestore
- }
- { show
- }
- ifelse
-} def
-
-% concatenate two strings: <string> <string> strconcat <string>
-/strconcat
-{ 2 copy length exch length add string
- dup 0 4 index putinterval
- dup 3 index length 3 index putinterval
- 3 1 roll pop pop
-} def
-
-% lgen: generate one label automatically
-% num lgen num string
-/lgen { dup 20 string cvs } def
-
-% loglgen: generate one logarithmic label (with exponent)
-% <base> <exponent> loglgen <string>
-/loglgen
-{ 20 string cvs exch 20 string cvs
- (^) strconcat exch strconcat
-} def
-
-
-% printxtick: print one x tick
-% xpos printxtick -
-/printxtick
-{ newpath
- yleft trpoint moveto 0 yextra neg rmoveto
- 0 xticklength neg rlineto [] 0 setdash stroke
-} def
-
-% printxlabel: print one x label
-% (xlabel) xpos printxlabel -
-/printxlabel
-{ yleft trpoint moveto 0 yextra neg rmoveto
- 0 xticklength neg rmoveto 0 0.9 ft neg rmoveto
- xlog 1 gt { 0 0.3 ft neg rmoveto } if
- dup expstringwidth -2 div 0 rmoveto expstringshow
-} def
-
-% printytick: print one y tick
-% ypos printytick -
-/printytick
-{ newpath
- xleft exch trpoint moveto xextra neg 0 rmoveto
- yticklength neg 0 rlineto [] 0 setdash stroke
-} def
-
-% printylabel: print one y label
-% (ylabel) ypos printylabel -
-/printylabel
-{ xleft exch trpoint moveto xextra neg 0 rmoveto
- yticklength neg 0 rmoveto -0.3 ft -0.3 ft rmoveto
- dup expstringwidth neg 0 rmoveto expstringshow
-} def
-
-% printrtick: print one r tick
-% ypos printrtick -
-/printrtick
-{ newpath
- xright exch trpoint moveto xextra 0 rmoveto
- rticklength 0 rlineto [] 0 setdash stroke
-} def
-
-% printrlabel: print one r label
-% (rlabel) ypos printrlabel -
-/printrlabel
-{ xright exch trpoint moveto xextra 0 rmoveto
- rticklength 0 rmoveto 0.3 ft -0.3 ft rmoveto
- expstringshow
-} def
-
-% printticks: print ticks and labels
-% /tickproc /labelproc [ tickandlabeldata ] min printticks -
-/printticks
-{ /prev exch def
- { dup type dup dup /integertype eq exch /realtype eq or
- { pop dup /prev exch def 2 index cvx exec
- }
- { /stringtype eq
- { prev 2 index cvx exec
- }
- { pop
- } ifelse
- } ifelse
- } forall
- pop pop
-} def
-
-
-% printxaxistick: print one x axis tick
-% xpos printxaxistick -
-/printxaxistick
-{ newpath
- yaxis trpoint moveto 0 xticklength -2 div rmoveto
- 0 xticklength rlineto [] 0 setdash stroke
-} def
-
-% printxaxislabel: print one x axis label
-% (xlabel) xpos printxaxislabel -
-/printxaxislabel
-{ yaxis trpoint moveto
- 0 xticklength -2 div rmoveto 0 0.9 ft neg rmoveto
- xlog 1 gt { 0 0.3 ft neg rmoveto } if
- dup expstringwidth -2 div 0 rmoveto expstringshow
-} def
-
-% printyaxistick: print one y axis tick
-% ypos printyaxistick -
-/printyaxistick
-{ newpath
- xaxis exch trpoint moveto
- yticklength -2 div 0 rmoveto
- yticklength 0 rlineto [] 0 setdash stroke
-} def
-
-% printyaxislabel: print one y axis label
-% (ylabel) ypos printyaxislabel -
-/printyaxislabel
-{ xaxis exch trpoint moveto
- yticklength -2 div 0 rmoveto -0.3 ft -0.3 ft rmoveto
- dup expstringwidth neg 0 rmoveto expstringshow
-} def
-
-
-% <val> minmax -
-% perform minv := min(minv, val); maxv := max(maxv, val)
-% allowing for the possibility of minv, maxv, val being false (undefined)
-/minmax
-{ dup false eq
- { pop }
- { minv false eq
- { dup /minv exch def /maxv exch def }
- { dup minv lt
- { /minv exch def }
- { dup maxv gt
- { /maxv exch def }
- { pop }
- ifelse
- } ifelse
- } ifelse
- } ifelse
-} def
-
-% <ticks> ticksundef <ticks> <bool>
-% returns true iff the ticks array is undefined (one false entry)
-/ticksundef
-{ dup length 1 eq
- { dup 0 get false eq
- }
- { false }
- ifelse
-} def
-
-% <number> integral <boolean>
-% true if the number has an integral value
-/integral { dup round eq } def
-
-% ticksep ticks xory alldata minval maxval axis base ticksandlimits ticks min max base
-% ticksandlimits: sort out value of x or y ticks and limits and log base
-/ticksandlimits
-{ /base exch def
- /minv false def
- /maxv false def
-
- % min and max of user-supplied minval, maxval, and axis
- minmax minmax minmax
-
- % min and max of data points
- { 0 get dup dup length 1 sub 3 index exch 2 exch
- { get minmax dup
- } for pop pop
- } forall
- pop dup
-
- % min and max of tick values
- { dup type /stringtype eq
- { pop } { minmax } ifelse
- } forall
-
- % fix minv and maxv if undefined (false) or equal
- minv false eq
- { /minv -1 def /maxv 1 def }
- { minv maxv eq
- { minv 0 lt
- { /minv 2 minv mul def /maxv 0 def
- }
- { minv 0 eq
- { /minv -1 def /maxv 1 def
- }
- { /minv 0 def /maxv 2 maxv mul def
- } ifelse
- } ifelse
- } if
- } ifelse
-
- % invent ticks if undefined
- ticksundef
- { pop /ticksep exch def
-
- % if base is reasonable and minv is positive, logarithmic ticks
- base 1 gt minv 0 gt and
- {
- % get integral log of minv and maxv
- /logminv base minv plog floor cvi def
- /logmaxv base maxv plog ceiling cvi def
-
- % if minv close to base, make it 1; reset minv and maxv
- logminv 1 eq logmaxv 4 ge and { /logminv 0 def } if
- /minv base logminv exp def
- /maxv base logmaxv exp def
-
- % ticks := [ base**logminv, ... , base**logmaxv ]
- [ logminv 1 logmaxv
- { dup base exch exp
- exch base exch loglgen
- } for
- ]
- }
- { % non-logarithmic ticks
- {
- % fix tick separation if undefined (0) or too small
- /base 0 def
- /delta maxv minv sub def
- ticksep delta 30 div le
- { /ticksep 10 delta log 1 sub ceiling exp def
- ticksep delta 2 div ge
- { /ticksep ticksep 2 div def }
- { ticksep delta 5 div lt
- { /ticksep 2 ticksep mul def
- } if
- } ifelse
- } if
-
- % adjust minv and maxv to be multiples of ticksep
- /minv minv ticksep div floor ticksep mul def
- /maxv maxv ticksep div ceiling ticksep mul def
- /delta maxv minv sub def
-
- % if minv or maxv near zero, move to zero and redo
- minv ticksep eq
- { /minv 0 def }
- { maxv ticksep neg eq { /maxv 0 def } { exit } ifelse
- } ifelse
- } loop
-
- % if minv, maxv, and ticksep are all integral, set "makeint" to true
- /makeint minv integral maxv integral ticksep integral and and def
-
- % ticks := [ minv, minv+ticksep, ... , maxv ]
- [ 0 1 delta ticksep div round
- { ticksep mul minv add makeint { cvi } if lgen }
- for
- ]
- } ifelse
- }
- { exch pop
- } ifelse
- minv maxv base
-} def
-
-% xset: set up all data for x axis, including limits and ticks
-% xticksep xticks 0 alldata xmin xmax xlog xextra xdecr xaxis xticklength xset -
-/xset
-{ /xticklength exch def
- /xaxis exch def
- /xdecr exch def
- /xextra exch def
- xaxis exch ticksandlimits
- /xlog exch def /xmax exch def /xmin exch def /xticks exch def
- /xleft xdecr { xmax } { xmin } ifelse def
- /xright xdecr { xmin } { xmax } ifelse def
- /xwidth xsize xextra 2 mul sub def
- /trxmin xmin xtr def /trxmax xmax xtr def
-} def
-
-% yset: set up all data for y axis, including limits and yticks
-% yticksep yticks 0 alldata ymin ymax ylog yextra ydecr yaxis yticklength yset -
-/yset
-{ /yticklength exch def
- /yaxis exch def
- /ydecr exch def
- /yextra exch def
- yaxis exch ticksandlimits
- /ylog exch def /ymax exch def /ymin exch def /yticks exch def
- /yleft ydecr { ymax } { ymin } ifelse def
- /yright ydecr { ymin } { ymax } ifelse def
- /ywidth ysize yextra 2 mul sub def
- /trymin ymin ytr def /trymax ymax ytr def
-} def
-
-% rset: set up all data for y axis (again), but including limits and rticks
-% rticksep rticks 0 alldata ymin ymax ylog yextra ydecr yaxis rticklength rset -
-/rset
-{ /rticklength exch def
- /yaxis exch def
- /ydecr exch def
- /yextra exch def
- yaxis exch ticksandlimits
- /ylog exch def /ymax exch def /ymin exch def /rticks exch def
- /yleft ydecr { ymax } { ymin } ifelse def
- /yright ydecr { ymin } { ymax } ifelse def
- /ywidth ysize yextra 2 mul sub def
- /trymin ymin ytr def /trymax ymax ytr def
-} def
-
-% norset: set up data for no rticks
-% - norset -
-/norset
-{ /rticklength 0 def
- /rticks [] def
-} def
-
-% framestyle: print a frame around the graph
-/framestyle
-{ 0 0 moveto xsize 0 lineto xsize ysize lineto
- 0 ysize lineto closepath stroke
- /printxtick /printxlabel xticks xleft printticks
- /printytick /printylabel yticks ymin printticks
- /printrtick /printrlabel rticks ymin printticks
-} def
-
-% nonestyle: print nothing around the graph
-/nonestyle
-{
-} def
-
-% axesstyle: print axes for the graph (unless axis values missing)
-/axesstyle
-{
- xaxis false eq yaxis false eq or
- { framestyle }
- { xaxis yaxis trpoint dup 0 exch moveto xsize exch lineto
- dup 0 moveto ysize lineto stroke
- /printxaxistick /printxaxislabel xticks xleft printticks
- /printyaxistick /printyaxislabel yticks ymin printticks
- } ifelse
-} def
-
-% rundata: run all data sets
-/rundata
-{ alldata
- { gsave
- dup dup dup dup
- 4 get /dopaint exch def
- 3 get /initrun exch def
- 2 get /pairs exch def
- 1 get /points exch def
- 0 get /data exch def
- dopaint
- { data length 4 ge
- { initrun
- newpath
- data 0 get ymin trpoint yextra sub moveto
- 0 2 data length 2 sub
- { dup 1 add
- data exch get /ycurr exch def
- data exch get /xcurr exch def
- xcurr ycurr trpoint lineto
- } for
- data dup length 2 sub get ymin trpoint yextra sub lineto
- closepath fill
- } if
- } if
- initrun
- data length 2 ge
- {
- /xcurr data 0 get def
- /ycurr data 1 get def
- points
- data length 4 ge
- { 2 2 data length 2 sub
- { /xprev xcurr def
- /yprev ycurr def
- dup dup 2 eq /firstpair exch def
- data length 2 sub eq /lastpair exch def
- dup 1 add
- data exch get /ycurr exch def
- data exch get /xcurr exch def
- pairs
- points
- } for
- } if
- } if
- grestore
- } forall
-} def
-
-end
-%%EndResource
-
-%%BeginResource: procset LoutFigPrependGraphic
-% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/diagf.lpg
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-% %
-% PostScript @SysPrependGraphic file for @Diag Jeffrey H. Kingston %
-% Version 2.0 (includes CIRCUM label) September 1996 %
-% %
-% To assist in avoiding name clashes, the names of all symbols %
-% defined here begin with "ldiag". However, this is not feasible %
-% with user-defined labels and some labels used by users. %
-% %
-% <point> is two numbers, a point. %
-% <length> is one number, a length %
-% <angle> is one number, an angle in degrees %
-% <dashlength> is one number, the preferred length of a dash %
-% %
-%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-
-errordict begin
- /handleerror
- {
- { /Times-Roman findfont 8 pt scalefont setfont
- 0 setgray 4 pt 4 pt moveto
- $error /errorname get
- dup ldiagdict exch known
- { ldiagdict exch get }
- { 50 string cvs } ifelse
- show
- ( Command: ) show
- $error /command get 50 string cvs show
- } stopped {} if
- showpage stop
- } def
-end
-
-% begin diagram: <maxlabels> ldiagbegin -
-% must be defined outside ldiagdict since it loads it
-/ldiagbegin
-{ xsize 0 0 ysize ldiagdict begin
- 5 -1 roll /ldiagmaxlabels exch def
- (@Diag) ldiagpushtagdict
- /OOY ldiagpointdef /OOX ldiagpointdef 0 0 /OOO ldiagpointdef
-} def
-
-% end diagram: - ldiagend -
-/ldiagend
-{ ldiagpoptagdict end
-} def
-
-% concat strings: <string> <string> ldiagconcat <string>
-% must be defined outside ldiagdict since used in ldiagpromotelabels
-/ldiagconcat
-{ 2 copy length exch length add string
- dup 0 4 index putinterval
- dup 3 index length 3 index putinterval
- 3 1 roll pop pop
-} def
-
-/ldiagdebugposy 432 def
-/ldiagdebugposx 72 def
-
-% <string> <int> ldiagdebugprint -
-% must be defined outside ldiagdict since used in arbitrary places
-% print count or <int> stack entries, which ever is the smaller
-/ldiagdebugprint
-{
- exch
- gsave
- initgraphics
- ldiagdebugposy 72 lt
- { /ldiagdebugposx ldiagdebugposx 144 add store
- /ldiagdebugposy 432 store
- }
- {
- /ldiagdebugposy ldiagdebugposy 12 sub store
- } ifelse
- ldiagdebugposx ldiagdebugposy moveto
- /Times-Roman findfont 10 scalefont setfont
- 0 setgray show
- count 1 sub 2 copy lt { pop } { exch pop } ifelse 1 sub
- 0 exch 1 exch
- {
- /ldiagdebugposy ldiagdebugposy 12 sub store
- ldiagdebugposx 12 add ldiagdebugposy moveto
- index 50 string cvs show
- } for
- grestore
-} def
-
-/ldiagdict 200 dict def
-ldiagdict begin
-
-% error messages
-/dictfull (dictfull error: too many labels?) def
-/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def
-/execstackoverflow (execstackoverflow error: figure nested too deeply?) def
-/limitcheck (limitcheck error: figure nested too deeply or too large?) def
-/syntaxerror (syntaxerror error: syntax error in text of figure?) def
-/typecheck (typecheck error: syntax error in text of figure?) def
-/undefined (undefined error: unknown or misspelt label?) def
-/VMError (VMError error: run out of memory?) def
-
-% push pi onto stack: - ldiagpi <num>
-/ldiagpi 3.14159 def
-
-% push e onto stack: - ldiage <num>
-/ldiage 2.71828 def
-
-% arc directions
-/clockwise false def
-/anticlockwise true def
-
-% test equality between two angles: <angle> <angle> ldiagangleeq <bool>
-/ldiagangleeq { ldiagfixangle exch ldiagfixangle eq } def
-
-% test inequality between two angles: <angle> <angle> ldiaganglene <bool>
-/ldiaganglene { ldiagangleeq not } def
-
-% maximum of two numbers: <num> <num> ldiagmax <num>
-/ldiagmax { 2 copy gt { pop } { exch pop } ifelse } def
-
-% minimum of two numbers: <num> <num> ldiagmin <num>
-/ldiagmin { 2 copy lt { pop } { exch pop } ifelse } def
-
-% add two points: <point> <point> ldiagpadd <point>
-/ldiagpadd
-{
- % (Entering padd) 4 ldiagdebugprint
- exch 3 1 roll add 3 1 roll add exch
- % (Leaving padd) 2 ldiagdebugprint
-} def
-
-% subtract first point from second: <point> <point> ldiagpsub <point>
-/ldiagpsub { 3 2 roll sub 3 1 roll exch sub exch } def
-
-% max two points: <point> <point> ldiagpmax <point>
-/ldiagpmax { exch 3 1 roll ldiagmax 3 1 roll ldiagmax exch } def
-
-% min two points: <point> <point> ldiagpmin <point>
-/ldiagpmin { exch 3 1 roll ldiagmin 3 1 roll ldiagmin exch } def
-
-% scalar multiplication: <point> <num> ldiagpmul <point>
-/ldiagpmul { dup 3 1 roll mul 3 1 roll mul exch } def
-
-% point at angle and distance: <point> <length> <angle> ldiagatangle <point>
-/ldiagatangle { 2 copy cos mul 3 1 roll sin mul ldiagpadd } def
-
-% angle from one point to another: <point> <point> ldiagangleto <angle>
-/ldiagangleto { ldiagpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def
-
-% distance between two points: <point> <point> ldiagdistance <length>
-/ldiagdistance { ldiagpsub dup mul exch dup mul add sqrt } def
-
-% stroke a solid line: <length> <dashlength> ldiagsolid -
-/ldiagsolid
-{ pop pop [] 0 setdash 1 setlinecap stroke
-} def
-
-% stroke a dashed line: <length> <dashlength> ldiagdashed -
-/ldiagdashed
-{ 2 copy div 2 le 1 index 0 le or
- { exch pop 1 pt ldiagmax [ exch dup ] 0 setdash }
- { dup [ exch 4 2 roll 2 copy div
- 1 sub 2 div ceiling dup 4 1 roll
- 1 add mul sub exch div ] 0 setdash
- } ifelse 0 setlinecap stroke
-} def
-
-% stroke a cdashed line: <length> <dashlength> ldiagcdashed -
-/ldiagcdashed
-{ % (Entering ldiagcdashed) 2 ldiagdebugprint
- 2 copy le 1 index 0 le or
- { exch pop 1 pt ldiagmax [ exch dup ] dup 0 get 2 div setdash }
- { dup [ 4 2 roll exch 2 copy exch div
- 2 div ceiling div 1 index sub
- ] exch 2 div setdash
- } ifelse 0 setlinecap stroke
- % (Leaving ldiagcdashed) 0 ldiagdebugprint
-} def
-
-% stroke a dotted line: <length> <dashlength> ldiagdotted -
-/ldiagdotted
-{ 2 copy le 1 index 0 le or
- { exch pop 1 pt ldiagmax [ exch 0 exch ] 0 setdash }
- { 1 index exch div ceiling div
- [ 0 3 2 roll ] 0 setdash
- } ifelse 1 setlinecap stroke
-} def
-
-% stroke a noline line: <length> <dashlength> ldiagnoline -
-/ldiagnoline
-{ pop pop
-} def
-
-% painting (i.e. filling): - ldiagwhite - (etc.)
-/ldiagnopaint { } def
-/ldiagnochange { fill } def
-/ldiagdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def
-/ldiagblue { 0.0 0.0 1.0 setrgbcolor fill } def
-/ldiaglightblue { 0.5 0.5 1.0 setrgbcolor fill } def
-/ldiagdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def
-/ldiaggreen { 0.0 1.0 0.0 setrgbcolor fill } def
-/ldiaglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def
-/ldiagdarkred { 0.5 0.0 0.0 setrgbcolor fill } def
-/ldiagred { 1.0 0.0 0.0 setrgbcolor fill } def
-/ldiaglightred { 1.0 0.5 0.5 setrgbcolor fill } def
-/ldiagdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def
-/ldiagcyan { 0.0 1.0 1.0 setrgbcolor fill } def
-/ldiaglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def
-/ldiagdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def
-/ldiagmagenta { 1.0 0.0 1.0 setrgbcolor fill } def
-/ldiaglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def
-/ldiagdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def
-/ldiagyellow { 1.0 1.0 0.0 setrgbcolor fill } def
-/ldiaglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def
-/ldiagdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def
-/ldiaggray { 0.5 0.5 0.5 setrgbcolor fill } def
-/ldiaglightgray { 0.8 0.8 0.8 setrgbcolor fill } def
-/ldiagdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def
-/ldiaggrey { 0.5 0.5 0.5 setrgbcolor fill } def
-/ldiaglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def
-/ldiagblack { 0.0 0.0 0.0 setrgbcolor fill } def
-/ldiagwhite { 1.0 1.0 1.0 setrgbcolor fill } def
-
-% shape and labels of the @Box symbol
-/ldiagbox
-{
- 0 0 /SW ldiagpointdef
- xsize 0 /SE ldiagpointdef
- xsize ysize /NE ldiagpointdef
- 0 ysize /NW ldiagpointdef
- SE 0.5 ldiagpmul /S ldiagpointdef
- NW 0.5 ldiagpmul /W ldiagpointdef
- W SE ldiagpadd /E ldiagpointdef
- S NW ldiagpadd /N ldiagpointdef
- NE 0.5 ldiagpmul /CTR ldiagpointdef
-
- 0 dg /S@ANGLE ldiagangledef
- 45 dg /SE@ANGLE ldiagangledef
- 90 dg /E@ANGLE ldiagangledef
- 135 dg /NE@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 225 dg /NW@ANGLE ldiagangledef
- 270 dg /W@ANGLE ldiagangledef
- 315 dg /SW@ANGLE ldiagangledef
-
- [ CTR NE ldiagpsub /ldiagboxcircum cvx ] ldiagcircumdef
- SW SE NE NW SW
-} def
-
-% shape and labels of the @CurveBox symbol
-% <margin> ldiagcurvebox <shape>
-/ldiagcurvebox
-{
-
- % (Entering ldiagcurvebox) 1 ldiagdebugprint
- ldiagdecodelength /cbmgn exch def
-
- xsize 0.5 mul ysize 0.5 mul /CTR ldiagpointdef
- xsize 0.5 mul 0 /S ldiagpointdef
- xsize ysize 0.5 mul /E ldiagpointdef
- xsize 0.5 mul ysize /N ldiagpointdef
- 0 ysize 0.5 mul /W ldiagpointdef
-
- cbmgn 0.293 mul cbmgn 0.293 mul /SW ldiagpointdef
- xsize cbmgn 0.293 mul sub cbmgn 0.293 mul /SE ldiagpointdef
- xsize cbmgn 0.293 mul sub ysize cbmgn 0.293 mul sub /NE ldiagpointdef
- cbmgn 0.293 mul ysize cbmgn 0.293 mul sub /NW ldiagpointdef
-
- 0 dg /S@ANGLE ldiagangledef
- 45 dg /SE@ANGLE ldiagangledef
- 90 dg /E@ANGLE ldiagangledef
- 135 dg /NE@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 225 dg /NW@ANGLE ldiagangledef
- 270 dg /W@ANGLE ldiagangledef
- 315 dg /SW@ANGLE ldiagangledef
-
- [ xsize ysize 0.5 ldiagpmul cbmgn /ldiagcurveboxcircum cvx ] ldiagcircumdef
-
- cbmgn 0
- xsize cbmgn sub 0
- [ xsize cbmgn sub cbmgn ]
- xsize cbmgn
- xsize ysize cbmgn sub
- [ xsize cbmgn sub ysize cbmgn sub ]
- xsize cbmgn sub ysize
- cbmgn ysize
- [ cbmgn ysize cbmgn sub ]
- 0 ysize cbmgn sub
- 0 cbmgn
- [ cbmgn cbmgn ]
- cbmgn 0
-
- % (Leaving ldiagcurvebox) 0 ldiagdebugprint
-} def
-
-% shadow of the @ShadowBox symbol
-% its shape and labels are done, somewhat inaccurately, with ldiagbox
-% <shadowmargin> ldiagshadow -
-/ldiagshadow
-{
- /lfshm exch def
-
- lfshm 0 moveto
- 0 lfshm neg rlineto
- xsize 0 rlineto
- 0 ysize rlineto
- lfshm neg 0 rlineto
- xsize 0 lineto
- closepath fill
-
-} def
-
-% shape and labels of the @Square symbol
-/ldiagsquare
-{
- xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef
- CTR xsize xsize ysize ysize ldiagpmax 0.5 ldiagpmul ldiagpadd /NE ldiagpointdef
- CTR 0 0 CTR NE ldiagdistance 135 ldiagatangle ldiagpadd /NW ldiagpointdef
- CTR 0 0 CTR NE ldiagdistance 225 ldiagatangle ldiagpadd /SW ldiagpointdef
- CTR 0 0 CTR NE ldiagdistance 315 ldiagatangle ldiagpadd /SE ldiagpointdef
- SW 0.5 ldiagpmul SE 0.5 ldiagpmul ldiagpadd /S ldiagpointdef
- NW 0.5 ldiagpmul NE 0.5 ldiagpmul ldiagpadd /N ldiagpointdef
- SW 0.5 ldiagpmul NW 0.5 ldiagpmul ldiagpadd /W ldiagpointdef
- SE 0.5 ldiagpmul NE 0.5 ldiagpmul ldiagpadd /E ldiagpointdef
-
- 0 dg /S@ANGLE ldiagangledef
- 45 dg /SE@ANGLE ldiagangledef
- 90 dg /E@ANGLE ldiagangledef
- 135 dg /NE@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 225 dg /NW@ANGLE ldiagangledef
- 270 dg /W@ANGLE ldiagangledef
- 315 dg /SW@ANGLE ldiagangledef
-
- [ CTR NE ldiagpsub /ldiagboxcircum cvx ] ldiagcircumdef
- SW SE NE NW SW
-} def
-
-% shape and labels of the @Diamond symbol
-/ldiagdiamond
-{
- xsize 0 0.5 ldiagpmul /S ldiagpointdef
- 0 ysize 0.5 ldiagpmul /W ldiagpointdef
- S W ldiagpadd /CTR ldiagpointdef
- CTR W ldiagpadd /N ldiagpointdef
- CTR S ldiagpadd /E ldiagpointdef
- E N ldiagpadd 0.5 ldiagpmul /NE ldiagpointdef
- N W ldiagpadd 0.5 ldiagpmul /NW ldiagpointdef
- S W ldiagpadd 0.5 ldiagpmul /SW ldiagpointdef
- S E ldiagpadd 0.5 ldiagpmul /SE ldiagpointdef
-
- 0 dg /S@ANGLE ldiagangledef
- 90 dg /E@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 270 dg /W@ANGLE ldiagangledef
- S E ldiagangleto /SE@ANGLE ldiagangledef
- E N ldiagangleto /NE@ANGLE ldiagangledef
- N W ldiagangleto /NW@ANGLE ldiagangledef
- W S ldiagangleto /SW@ANGLE ldiagangledef
-
- [ xsize ysize 0.5 ldiagpmul /ldiagdiamondcircum cvx ] ldiagcircumdef
- S E N W S
-} def
-
-% shape and labels of the @Ellipse symbol
-/ldiagellipse
-{
- xsize 0 0.5 ldiagpmul /S ldiagpointdef
- 0 ysize 0.5 ldiagpmul /W ldiagpointdef
- S W ldiagpadd /CTR ldiagpointdef
- CTR W ldiagpadd /N ldiagpointdef
- CTR S ldiagpadd /E ldiagpointdef
- CTR xsize 0 0.3536 ldiagpmul ldiagpadd 0 ysize 0.3536 ldiagpmul ldiagpadd /NE ldiagpointdef
- 0 ysize 0.3536 ldiagpmul CTR xsize 0 0.3536 ldiagpmul ldiagpadd ldiagpsub /SE ldiagpointdef
- xsize 0 0.3536 ldiagpmul CTR ldiagpsub 0 ysize 0.3536 ldiagpmul ldiagpadd /NW ldiagpointdef
- 0 ysize 0.3536 ldiagpmul xsize 0 0.3536 ldiagpmul CTR ldiagpsub ldiagpsub /SW ldiagpointdef
- [ xsize ysize 0.5 ldiagpmul /ldiagellipsecircum cvx ] ldiagcircumdef
-
- 0 dg /S@ANGLE ldiagangledef
- 90 dg /E@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 270 dg /W@ANGLE ldiagangledef
-
- S E ldiagangleto /SE@ANGLE ldiagangledef
- E N ldiagangleto /NE@ANGLE ldiagangledef
- N W ldiagangleto /NW@ANGLE ldiagangledef
- W S ldiagangleto /SW@ANGLE ldiagangledef
-
- S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S
-} def
-
-% shape and labels of the @Circle symbol
-/ldiagcircle
-{
- xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef
- CTR xsize 0 ysize 0 ldiagpmax 0.5 ldiagpmul ldiagpadd /E ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 45 ldiagatangle ldiagpadd /NE ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 90 ldiagatangle ldiagpadd /N ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 135 ldiagatangle ldiagpadd /NW ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 180 ldiagatangle ldiagpadd /W ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 225 ldiagatangle ldiagpadd /SW ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 270 ldiagatangle ldiagpadd /S ldiagpointdef
- CTR 0 0 CTR E ldiagdistance 315 ldiagatangle ldiagpadd /SE ldiagpointdef
- [ S E ldiagpsub /ldiagellipsecircum cvx ] ldiagcircumdef
-
- 0 dg /S@ANGLE ldiagangledef
- 45 dg /SE@ANGLE ldiagangledef
- 90 dg /E@ANGLE ldiagangledef
- 135 dg /NE@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 225 dg /NW@ANGLE ldiagangledef
- 270 dg /W@ANGLE ldiagangledef
- 315 dg /SW@ANGLE ldiagangledef
-
- S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S
-} def
-
-% shape and labels of the @VLine and @VArrow symbols
-/ldiagvline
-{
- xmark ysize ldiagprevious /FROM ldiagpointdef
- xmark 0 ldiagprevious /TO ldiagpointdef
-} def
-
-% points of a polygon around base with given no of sides, vert init angle:
-% <sides> <angle> ldiagpolygon <point> ... <point>
-/ldiagpolygon
-{ exch round cvi exch
- xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef
- 90 sub CTR 2 copy ldiagmax 5 3 roll
- [ 4 copy pop /ldiagpolycircum cvx ] ldiagcircumdef
- exch dup 360 exch div exch
- 1 1 3 2 roll
- { 4 string cvs (P) exch ldiagconcat
- 3 copy exch pop (@ANGLE) ldiagconcat cvn exch 90 add exch ldiagangledef
- cvn 6 copy pop pop ldiagatangle 2 copy 10 2 roll
- 3 2 roll ldiagpointdef
- dup 3 1 roll add exch
- } for
- pop ldiagatangle
-} def
-
-% shape and labels of the @Isosceles triangle symbol
-/ldiagisosceles
-{
- xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef
- 0 0 /SW ldiagpointdef
- xsize 0 /SE ldiagpointdef
- xsize 0.5 mul ysize /N ldiagpointdef
- xsize 0.5 mul 0 /S ldiagpointdef
- SE 0.5 ldiagpmul N 0.5 ldiagpmul ldiagpadd /NE ldiagpointdef
- SW 0.5 ldiagpmul N 0.5 ldiagpmul ldiagpadd /NW ldiagpointdef
-
- [ xsize ysize /ldiagisoscelescircum cvx ] ldiagcircumdef
-
- 0 dg /SW@ANGLE ldiagangledef
- 0 dg /SE@ANGLE ldiagangledef
- 180 dg /N@ANGLE ldiagangledef
- 0 dg /S@ANGLE ldiagangledef
- SE N ldiagangleto /NE@ANGLE ldiagangledef
- N SW ldiagangleto /NW@ANGLE ldiagangledef
-
- SW SE N SW
-} def
-
-% next array element: <array> <index> ldiaggetnext <array> <index> <any> true
-% or <array> <index> false
-/ldiaggetnext
-{ 2 copy exch length ge
- { false }
- { 2 copy get exch 1 add exch true } ifelse
-} def
-
-% check whether thing is number: <any> ldiagisnumbertype <any> <bool>
-/ldiagisnumbertype
-{ dup type dup
- /integertype eq exch /realtype eq or
-} def
-
-% check whether thing is an array: <any> ldiagisarraytype <any> <bool>
-/ldiagisarraytype { dup type /arraytype eq } def
-
-% check whether thing is an array: <any> ldiagisnametype <any> <bool>
-/ldiagisnametype { dup type /nametype eq } def
-
-% get next item: <array> <index> ldiaggetnextitem <array> <index> 0
-% or <array> <index> <array> 1
-% or <array> <index> <point> 2
-/ldiaggetnextitem
-{ ldiaggetnext
- { ldiagisarraytype
- { 1
- }
- { ldiagisnumbertype
- { 3 1 roll
- ldiaggetnext
- { ldiagisnumbertype
- { 4 3 roll exch 2
- }
- { pop 3 2 roll pop 0
- } ifelse
- }
- { 3 2 roll pop 0
- } ifelse
- }
- { pop 0
- } ifelse
- } ifelse
- }
- { 0
- } ifelse
-} def
-
-% approximate equality: num1 num2 approxeq <boolean>
-/approxeq
-{ dup 0 eq
- { pop 0 eq
- }
- { dup 3 1 roll sub exch div abs 0.001 lt
- } ifelse
-} def
-
-% set arc path: bool x1 y1 x2 y2 x0 y0 ldiagsetarc <angle> <angle> <dist>
-% the path goes from x1 y1 to x2 y2 about centre x0 y0,
-% anticlockwise if bool is true else clockwise.
-% The orientations of backwards pointing and forwards pointing
-% arrowheads are returned in the two angles, and
-% the length of the arc is returned in <dist>.
-/ldiagsetarc
-{
- % (Entering ldiagsetarc) 7 ldiagdebugprint
- 20 dict begin
- matrix currentmatrix 8 1 roll
- 2 copy translate 2 copy 8 2 roll
- 4 2 roll ldiagpsub 6 2 roll ldiagpsub
- dup /y1 exch def dup mul /y1s exch def
- dup /x1 exch def dup mul /x1s exch def
- dup /y2 exch def dup mul /y2s exch def
- dup /x2 exch def dup mul /x2s exch def
- /dist1 0 0 x1 y1 ldiagdistance def
- /dist2 0 0 x2 y2 ldiagdistance def
-
- y1s y2s approxeq
- { -1
- }
- { y1s x2s mul y2s x1s mul sub y1s y2s sub div
- } ifelse
- /da exch def
-
- x1s x2s approxeq
- { -1
- }
- { x1s y2s mul x2s y1s mul sub x1s x2s sub div
- } ifelse
- /db exch def
-
- da 0 gt db 0 gt and
- {
- % ( case 1, ellipse) 0 ldiagdebugprint
- /LMax da sqrt db sqrt ldiagmax def
- /scalex da sqrt LMax div def
- /scaley db sqrt LMax div def
- scalex scaley scale
- 0 0 LMax
- 0 0 x1 scalex mul y1 scaley mul ldiagangleto
- 0 0 x2 scalex mul y2 scaley mul ldiagangleto
- 2 copy eq { 360 add } if
- 2 copy 8 2 roll
- 5 index { arc } { arcn } ifelse
- 2 index 1 index
- { 90 sub } { 90 add } ifelse
- dup sin scaley mul exch cos scalex mul atan
- 2 index 2 index
- { 90 add } { 90 sub } ifelse
- dup sin scaley mul exch cos scalex mul atan
- 5 2 roll % res1 res2 ang1 ang2 anticlockwise
- { exch sub } { sub } ifelse
- dup 0 le { 360 add } if ldiagpi mul LMax mul 180 div
- }
- {
- dist1 dist2 approxeq
- % x1 y1 dist1 ( x1 y1, d) 3 ldiagdebugprint pop pop pop
- % x2 y2 dist2 ( x2 y2, d) 3 ldiagdebugprint pop pop pop
- {
- % ( case 2, circle) 0 ldiagdebugprint
- 0 0
- dist1
- 0 0 x1 y1 ldiagangleto
- 0 0 x2 y2 ldiagangleto
- 2 copy eq { 360 add } if
- 2 copy 8 2 roll
- 5 index { arc } { arcn } ifelse
- 2 index 1 index
- { 90 sub } { 90 add } ifelse
- 2 index 2 index
- { 90 add } { 90 sub } ifelse
- 5 2 roll % res1 res2 ang1 ang2 clockwise
- { exch sub } { sub } ifelse
- dup 0 le { 360 add } if
- ldiagpi mul dist1 mul 180 div
- }
- {
- % ( case 3, line) 0 ldiagdebugprint
- x2 y2 lineto pop
- x2 y2 x1 y1 ldiagangleto
- x1 y1 x2 y2 ldiagangleto
- x1 y1 x2 y2 ldiagdistance
- } ifelse
- } ifelse
- 4 -1 roll setmatrix
- end
- % (Leaving ldiagsetarc) 3 ldiagdebugprint
-} def
-
-% ldiagsetcurve: set up a Bezier curve from x0 y0 to x3 y3
-% and return arrowhead angles and length of curve (actually 0)
-% x0 y0 x1 y1 x2 y2 x3 y3 ldiagsetcurve <angle> <angle> <length>
-/ldiagsetcurve
-{ 8 copy curveto pop pop
- ldiagangleto
- 5 1 roll
- 4 2 roll ldiagangleto
- exch
- 0
-} def
-
-% ldiagsetpath: convert a Diag path into a PostScript path
-% [ shape ] ldiagsetpath
-/ldiagsetpath
-{
- 10 dict begin
- 0 newpath
- /prevseen false def
- /curveseen false def
- { ldiaggetnextitem
- dup 0 eq { pop exit }
- { 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /curveseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr
- ldiagsetcurve pop pop pop
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- ldiagsetarc pop pop pop
- } ifelse
- }
- { xcurr ycurr lineto
- } ifelse
- }
- { xcurr ycurr moveto
- } ifelse
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop pop pop
- end
-} def
-
-% ldiagpaintpath: paint a path of the given shape
-% /paint [ shape ] ldiagpaintpath -
-/ldiagpaintpath
-{
- ldiagsetpath cvx exec
-} def
-
-% stroke a path of the given shape in the given linestyle and dash length.
-% Return the origin and angle of the backward and forward arrow heads.
-% dashlength /linestyle [shape] ldiagdopath [<point> <angle>] [<point> <angle>]
-/ldiagdopath
-{
- 10 dict begin
- 0
- /prevseen false def
- /curveseen false def
- /backarrow [] def
- /fwdarrow [] def
- {
- ldiaggetnextitem
- dup 0 eq { pop exit }
- {
- 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /prevseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { newpath xprev yprev moveto
- curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr ldiagsetcurve
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- ldiagsetarc
- } ifelse
- }
- { xcurr ycurr lineto
- xcurr ycurr xprev yprev ldiagangleto dup 180 sub
- xprev yprev xcurr ycurr ldiagdistance
- } ifelse
- 6 index 6 index cvx exec
- [ xprev yprev 5 -1 roll ]
- backarrow length 0 eq
- { /backarrow exch def }
- { pop } ifelse
- [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def
- } if
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop
- pop pop pop pop
- backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse
- fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse
- end
-} def
-
-
-% stroke a path of the given shape in the given linestyle and dash length.
-% dashlength [ /linestyle ] [shape] ldiagdosegpath -
-/ldiagdosegpath
-{
- 12 dict begin
- 1 index /seg exch def
- 1 index length /seglength exch def
- 0 /segcount exch def
- 0
- /prevseen false def
- /curveseen false def
- /backarrow [] def
- /fwdarrow [] def
- {
- ldiaggetnextitem
- dup 0 eq { pop exit }
- {
- 1 eq
- { /curveseen true def
- /curve exch def
- curve length 0 eq { /prevseen false def } if
- }
- { /ycurr exch def
- /xcurr exch def
- prevseen
- { newpath xprev yprev moveto
- curveseen
- { curve length 4 eq
- { xprev yprev
- curve 0 get curve 1 get
- curve 2 get curve 3 get
- xcurr ycurr ldiagsetcurve
- }
- { xprev yprev xcurr ycurr
- curve length 1 ge { curve 0 get } { 0 } ifelse
- curve length 2 ge { curve 1 get } { 0 } ifelse
- curve length 3 ge { curve 2 get } { true } ifelse
- 7 1 roll
- ldiagsetarc
- } ifelse
- }
- { xcurr ycurr lineto
- xcurr ycurr xprev yprev ldiagangleto dup 180 sub
- xprev yprev xcurr ycurr ldiagdistance
- } ifelse
- 6 index seg segcount seglength mod get cvx exec
- /segcount segcount 1 add def
- [ xprev yprev 5 -1 roll ]
- backarrow length 0 eq
- { /backarrow exch def }
- { pop } ifelse
- [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def
- } if
- /xprev xcurr def
- /yprev ycurr def
- /prevseen true def
- /curveseen false def
- } ifelse
- } ifelse
- } loop
- pop pop pop pop
- end
-} def
-
-% ldiagnodebegin: start of node parameters
-% ldiagnodebegin -
-/ldiagnodebegin
-{ % (Entering ldiagnodebegin) 0 ldiagdebugprint
- ldiagmaxlabels dict begin
-} def
-
-% ldiagnodeend: end of node parameters (so do the node)
-% <outline> <dashlength> <style> <linewidth> <paint> ldiagnodeend -
-/ldiagnodeend
-{
- % (Entering ldiagnodeend) 0 ldiagdebugprint
- end % matches begin in ldiagnodebegin
- 4 index gsave ldiagpaintpath grestore
- 3 index ldiagsetpath clip newpath
- 2 mul setlinewidth
- 3 -1 roll ldiagdosegpath
- % (Leaving ldiagnodeend) 0 ldiagdebugprint
-} def
-
-% ldiaglinkbegin: start of link parameters
-% <direct> ldiaglinkbegin -
-/ldiaglinkbegin
-{ ldiagmaxlabels dict begin
- 1 eq /direct exch def
-} def
-
-% ldiaglinkend: end of link parameters (so do the link)
-% <outline> <dashlength> <style> <linewidth> ldiaglinkend -
-/ldiaglinkend
-{
- end % matches begin in ldiaglinkbegin
- setlinewidth
- 3 -1 roll ldiagdosegpath
-} def
-
-% ldiagdoarrow: draw an arrow head of given form
-% dashlength /lstyle /pstyle hfrac height width [ <point> <angle> ] ldiagdoarrow -
-/ldiagdoarrow
-{ matrix currentmatrix 8 1 roll
- dup 0 get 1 index 1 get translate
- 2 get rotate
- [ 2 index neg 2 index 0 0
- 3 index 3 index neg
- 1 index 10 index mul 0
- 7 index 7 index ]
- 4 1 roll pop pop pop
- dup 3 1 roll
- gsave ldiagpaintpath grestore ldiagdopath pop pop
- setmatrix
-} def
-
-% arrow head styles
-/ldiagopen 0.0 def
-/ldiaghalfopen 0.5 def
-/ldiagclosed 1.0 def
-
-% stroke no arrows, forward, back, and both
-/ldiagnoarrow { pop pop pop pop pop pop pop pop } def
-/ldiagforward { 7 -1 roll ldiagdoarrow pop } def
-/ldiagback { 8 -2 roll pop ldiagdoarrow } def
-/ldiagboth { 8 -1 roll 7 copy ldiagdoarrow pop 7 -1 roll ldiagdoarrow } def
-
-% ldiagprevious: return previous point on path
-/ldiagprevious
-{ ldiagisnumbertype
- { 2 copy }
- { ldiagisarraytype
- { 2 index 2 index }
- { 0 0 }
- ifelse
- } ifelse
-} def
-
-% Tag dictionary operators
-%
-% Diag's tag dictionaries are kept on the same stack as other dictionaries,
-% since there is nowhere else to put them. However, they are managed like
-% a separate stack using the following operators:
-%
-% <tag> ldiagpushtagdict - Push a new, empty tag dictionary
-% ldiagtoptagdict dict Find the top tag dictionary
-% ldiagpoptagdict - Pop and destroy the top tag dictionary
-% ldiagpopuptagdict - Pop top tag dict and promote its entries
-% ldiagdebugtagdict - Debug print of dictionary stack
-%
-% They are distinguished from other dictionaries by containing /ldiagtagdict,
-% whose value is the <tag> which is used by ldiagpopuptagdict,
-% and they are hopefully never the target of any non-tag definition because
-% they are never the top dictionary, since push places the new dict second.
-
-/ldiagpushtagdict
-{ ldiagmaxlabels dict dup
- currentdict end exch begin begin
- exch /ldiagtagdict exch put
-} def
-
-/ldiagtoptagdict
-{ /ldiagtagdict where not
- { (Diag internal error: no tag dictionary) show stop
- } if
-} def
-
-/ldiagpoptagdict
-{
- % (Entering poptagdict) 0 ldiagdebugprint
- % ldiagdebugtagdict
- mark
- { currentdict end
- dup /ldiagtagdict known
- { exit
- } if
- } loop
- pop
- counttomark
- { begin
- } repeat
- pop
- % (Leaving poptagdict) 0 ldiagdebugprint
- % ldiagdebugtagdict
-} def
-
-% promote labels from top tag dictionary to second top tag dictionary
-% each prefixed by <string>@ if <string> (value of /ldiagtagdict) is not empty
-% - ldiagpopuptagdict -
-/ldiagpopuptagdict
-{
- ldiagtagdict
- % (Entering ldiagpopuptagdict) 1 ldiagdebugprint
- % ldiagdebugtagdict
- ldiagtoptagdict ldiagpoptagdict ldiagtoptagdict exch
- { exch 50 string cvs 3 index
- dup length 0 ne
- { (@) ldiagconcat
- } if
- exch ldiagconcat cvn exch 2 index 3 1 roll put
- } forall
- pop pop
- % (Leaving ldiagpopuptagdict) 0 ldiagdebugprint
- % ldiagdebugtagdict
-} def
-
-% debug tag dictionary stack
-/ldiagdebugtagdict
-{ (Entering ldiagdebugtagdict) 0 ldiagdebugprint
- 30 array dictstack
- { dup /ldiagtagdict known
- { dup /ldiagtagdict get 0 ldiagdebugprint
- { pop 50 string cvs ( ) exch ldiagconcat
- dup 0 ldiagdebugprint
- pop
- }
- forall
- }
- { pop (other) 0 ldiagdebugprint
- } ifelse
- } forall
- (Leaving ldiagdebugtagdict) 0 ldiagdebugprint
-} def
-
-% label a point in top tag dictionary: <point> /name ldiagpointdef -
-/ldiagpointdef
-{
- % (Entering ldiagpointdef) 3 ldiagdebugprint
- [ 4 2 roll transform /itransform cvx ] cvx
- ldiagtoptagdict 3 1 roll put
- % (Leaving ldiagpointdef) 0 ldiagdebugprint
-} def
-
-% label an angle in top tag dictionary: <angle> /name ldiagangledef -
-/ldiagangledef
-{
- % (Entering ldiagangledef) 2 ldiagdebugprint
- exch ldiagfixangle ldiagtoptagdict 3 1 roll put
- % (Leaving ldiagangledef) 0 ldiagdebugprint
-} def
-
-% add CIRCUM operator with this body: <array> ldiagcircumdef -
-/ldiagcircumdef
-{ % (Entering ldiagcircumdef) 1 ldiagdebugprint
- /CIRCUM exch cvx
- ldiagtoptagdict 3 1 roll put
- % currentdict end
- % 3 1 roll
- % def
- % begin
- % (Leaving ldiagcircumdef) 0 ldiagdebugprint
-} def
-
-% show points (except CIRCUM and ANGLE): - ldiagshowpoints -
-/ldiagshowpoints
-{
- % (Entering ldiagshowpoints) 0 ldiagdebugprint
- ldiagtoptagdict
- { 1 index 50 string cvs
- (ldiagdebugpos) search
- { pop pop pop pop pop }
- {
- (CIRCUM) search % if CIRCUM in key
- { pop pop pop pop pop }
- {
- (ANGLE) search % if ANGLE in key
- {
- pop pop pop pop pop
- }
- {
- (ldiagtagdict) search
- {
- pop pop pop pop pop
- }
- {
- pop cvx exec
- newpath 2.0 pt 0 360 arc 0 setgray fill pop
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- } forall
- % (Leaving ldiagshowpoints) 0 ldiagdebugprint
-} def
-
-
-/ldiagshowtags
-{
- % (Entering ldiagshowtags) 0 ldiagdebugprint
- ldiagtoptagdict
- { 1 index 50 string cvs
- % dup 0 ldiagdebugprint
- (ldiagdebugpos) search
- { pop pop pop pop pop }
- {
- (CIRCUM) search % if CIRCUM in key
- { pop pop pop pop pop }
- {
- (ANGLE) search % if ANGLE in key
- {
- pop pop pop pop pop
- }
- {
- (ldiagtagdict) search
- {
- pop pop pop pop pop
- }
- {
- pop cvx exec 2 copy
- gsave
- newpath 2.0 pt 0 360 arc 0 setgray fill
- /Times-Roman findfont 8 pt scalefont setfont
- translate 40 rotate 0.2 cm 0.1 cm moveto 20 string cvs show
- grestore
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- } forall
- % (Leaving ldiagshowtags) 0 ldiagdebugprint
-} def
-
-
-% show angles: - ldiagshowangles -
-/ldiagshowangles
-{
- % (Entering ldiagshowangles) 0 ldiagdebugprint
- ldiagtoptagdict
- { 1 index 20 string cvs
- % dup 0 ldiagdebugprint
- (ldiagdebugpos) search
- { pop pop pop pop pop }
- {
- (ldiagtagdict) search
- {
- pop pop pop pop pop
- }
- {
- (CIRCUM) search % if CIRCUM in key
- { pop pop pop pop pop }
- {
- (@ANGLE) search % if ANGLE in key, draw the angle at the point
- {
- % (showing ANGLE) 5 ldiagdebugprint
- gsave exch pop exch pop cvx
- % (about to execute) 1 ldiagdebugprint
- exec translate rotate 0.8 0.8 scale pop
- newpath 0 0 2.0 pt 0 360 arc 0 setgray fill
- newpath 4 pt 0 moveto 9 pt 0 lineto
- 9 pt 1.5 pt lineto 11 pt 0 lineto 9 pt -1.5 pt lineto
- 9 pt 0 lineto [] 0 setdash 4 pt setlinewidth 0 setlinejoin
- stroke grestore
- % (finished ANGLE) 5 ldiagdebugprint
- }
- {
- % else must be a point, we aren't showing those
- pop pop pop
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- } forall
- % (Leaving ldiagshowangles) 0 ldiagdebugprint
-} def
-
-% fix an angle to 0 <= res < 360: <angle> ldiagfixangle <angle>
-/ldiagfixangle
-{
- % (Entering ldiagfixangle) 1 ldiagdebugprint
- { dup 0 ge { exit } if
- 360 add
- } loop
- { dup 360 lt { exit } if
- 360 sub
- } loop
- % (Leaving ldiagfixangle) 1 ldiagdebugprint
-} def
-
-% find point on circumference of box: alpha a b ldiagboxcircum x y
-/ldiagboxcircum
-{
- % (Entering ldiagboxcircum) 3 ldiagdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- ldiagfixangle /alpha exch def
- 0 0 a b ldiagangleto /theta exch def
-
- % if alpha <= theta, return (a, a*tan(alpha))
- alpha theta le
- { a a alpha sin mul alpha cos div }
- {
- % else if alpha <= 180 - theta, return (b*cot(alpha), b)
- alpha 180 theta sub le
- { b alpha cos mul alpha sin div b }
- {
- % else if alpha <= 180 + theta, return (-a, -a*tan(alpha))
- alpha 180 theta add le
- { a neg a neg alpha sin mul alpha cos div }
- {
- % else if alpha <= 360 - theta, return (-b*cot(alpha), -b)
- alpha 360 theta sub le
- { b neg alpha cos mul alpha sin div b neg }
- {
- % else 360 - theta <= alpha, return (a, a*tan(alpha))
- a a alpha sin mul alpha cos div
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving ldiagboxcircum) 2 ldiagdebugprint
-} def
-
-% find quadratic roots (assume a != 0): a b c ldiagqroots x1 x2 2
-% or x2 1
-% or 0
-/ldiagqroots
-{
- 4 dict begin
- /c exch def
- /b exch def
- /a exch def
- /disc b b mul 4 a c mul mul sub def
- disc 0 lt
- { 0
- }
- { disc 0 eq
- { b neg 2 a mul div
- 1
- }
- { b neg disc sqrt add 2 a mul div
- b neg disc sqrt sub 2 a mul div
- 2
- }
- ifelse
- }
- ifelse
- end
-} def
-
-% work our which quadrant: <angle> ldiagquadrant <0-3>
-/ldiagquadrant
-{ dup 90 lt
- { pop 0
- }
- { dup 180 lt
- { pop 1
- }
- { 270 lt
- { 2
- }
- { 3
- } ifelse
- } ifelse
- } ifelse
-} def
-
-% find curvebox circum, assuming upper right quadrant: alpha a b xmk ldiagcb x y
-/ldiagcb
-{
- 6 dict begin
- /xmk exch def
- /b exch def
- /a exch def
- /alpha exch def
- /theta1 0 0 a b xmk sub ldiagangleto def
- /theta2 0 0 a xmk sub b ldiagangleto def
- alpha theta1 le
- { % if alpha <= theta1, return (a, a*tan(alpha))
- a a alpha sin mul alpha cos div
- }
- { alpha theta2 ge
- { % else if alpha > theta2, return (b*cot(alpha), b)
- b alpha cos mul alpha sin div b
- }
- {
- % else, return the intersection of line and circle
- a xmk sub b xmk sub xmk 0 0 alpha ldiagcircleintersect
- dup 0 eq
- { % should never happen, just return any reasonable point
- pop
- a b 0.5 ldiagpmul
- }
- { 1 eq
- { % should never happen, just return the point on top of stack
- }
- { % the usual case, two points on stack, return the larger
- ldiagpmax
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- end
-} def
-
-% find point on circumference of curvebox: alpha a b xmk ldiagcurveboxcircum x y
-/ldiagcurveboxcircum
-{
- % (Entering ldiagcurveboxcircum) 4 ldiagdebugprint
- 5 dict begin
- /xmk exch def
- /b exch def
- /a exch def
- ldiagfixangle /alpha exch def
-
- % work out which quadrant we are in, and reflect accordingly
- /quad alpha ldiagquadrant def
- quad 0 eq
- { alpha a b xmk ldiagcb
- }
- { quad 1 eq
- { 180 alpha sub a b xmk ldiagcb exch neg exch
- }
- { quad 2 eq
- { alpha 180 sub a b xmk ldiagcb neg exch neg exch
- }
- { 360 alpha sub a b xmk ldiagcb neg
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving ldiagcurveboxcircum) 2 ldiagdebugprint
-} def
-
-% find point on circumference of diamond: alpha a b ldiagdiamondcircum x y
-/ldiagdiamondcircum
-{
- % (Entering ldiagdiamondcircum) 3 ldiagdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- ldiagfixangle /alpha exch def
- b alpha cos abs mul a alpha sin abs mul add /denom exch def
- a b mul alpha cos mul denom div
- a b mul alpha sin mul denom div
- end
- % (Leaving ldiagdiamondcircum) 2 ldiagdebugprint
-} def
-
-% find point on circumference of ellipse: alpha a b ldiagellipsecircum x y
-/ldiagellipsecircum
-{
- % (Entering ldiagellipsecircum) 3 ldiagdebugprint
- 4 dict begin
- /b exch def
- /a exch def
- ldiagfixangle /alpha exch def
- b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def
- a b mul alpha cos mul denom div
- a b mul alpha sin mul denom div
- end
- % (Leaving ldiagellipsecircum) 2 ldiagdebugprint
-} def
-
-% find point on circumference of isosceles: alpha a b ldiagisoscelescircum x y
-/ldiagisoscelescircum
-{
- % (Entering ldiagisoscelescircum) 3 ldiagdebugprint
- 7 dict begin
- /b exch def
- /a exch def
- /alpha exch ldiagfixangle def
- /theta1 90 def
- /theta2 a b 0.5 ldiagpmul 0 0 ldiagangleto def
- /theta3 a b 0.5 ldiagpmul a 0 ldiagangleto def
- alpha theta1 ge alpha theta2 le and
- { 0 0 a 2 div b
- }
- { alpha theta2 ge alpha theta3 le and
- { 0 0 a 0
- }
- { a 0 a 2 div b
- } ifelse
- } ifelse
- a 2 div b 2 div 2 copy 1 ft alpha ldiagatangle ldiaglineintersect
- a 2 div b 2 div 4 2 roll ldiagpsub
- end
- % (Leaving ldiagisoscelescircum) 2 ldiagdebugprint
-} def
-
-% find point of intersection of two lines each defined by two points
-% x1 y1 x2 y2 x3 y3 x4 y4 ldiaglineintersect x y
-/ldiaglineintersect
-{
- % (Entering ldiaglineintersect) 8 ldiagdebugprint
- 13 dict begin
- /y4 exch def
- /x4 exch def
- /y3 exch def
- /x3 exch def
- /y2 exch def
- /x2 exch def
- /y1 exch def
- /x1 exch def
- x2 x1 sub /x21 exch def
- x4 x3 sub /x43 exch def
- y2 y1 sub /y21 exch def
- y4 y3 sub /y43 exch def
- y21 x43 mul y43 x21 mul sub /det exch def
-
- % calculate x
- y21 x43 mul x1 mul
- y43 x21 mul x3 mul sub
- y3 y1 sub x21 mul x43 mul add
- det div
-
- % calculate y
- x21 y43 mul y1 mul
- x43 y21 mul y3 mul sub
- x3 x1 sub y21 mul y43 mul add
- det neg div
-
- end
- % (Leaving ldiaglineintersect) 2 ldiagdebugprint
-} def
-
-% find point on circumference of polygon
-% alpha radius num theta ldiagpolycircum x y
-/ldiagpolycircum
-{
- % (Entering ldiagpolycircum) 4 ldiagdebugprint
- 13 dict begin
- /theta exch def
- /num exch def
- /radius exch def
- /alpha exch def
-
- % calculate delta, the angle from theta to alpha
- alpha theta sub ldiagfixangle
-
- % calculate the angle which is the multiple of 360/num closest to delta
- 360 num div div truncate 360 num div mul theta add /anglea exch def
-
- % calculate the next multiple of 360/num after anglea
- anglea 360 num div add /angleb exch def
-
- % intersect the line through these two points with the alpha line
- anglea cos anglea sin angleb cos angleb sin
- 0 0 alpha cos 2 mul alpha sin 2 mul
- ldiaglineintersect radius ldiagpmul
-
- end
- % (Leaving ldiagpolycircum) 2 ldiagdebugprint
-} def
-
-% find point of intersection of a line and a circle
-% x0 y0 r x1 y1 theta ldiagcircleintersect xa ya xb yb 2
-% or xb yb 1
-% or 0
-/ldiagcircleintersect
-{
- % (Entering ldiagcircleintersect) 6 ldiagdebugprint
- 15 dict begin
- /theta exch def
- /y1 exch def
- /x1 exch def
- /r exch def
- /y0 exch def
- /x0 exch def
-
- % if sin(theta) = 0 then line is horizontal and y must be y1
- theta sin abs 0.00001 lt
- {
- /a 1 def
- /b -2 x0 mul def
- /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def
- a b c ldiagqroots dup
- 0 eq
- { pop
- 0
- }
- { 1 eq
- { y1 1
- }
- { y1 exch y1 2
- } ifelse
- } ifelse
- }
- {
- /ct theta cos theta sin div def
- /a ct ct mul 1 add def
- /b ct x1 x0 sub mul y1 add y0 sub 2 mul def
- /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def
- a b c ldiagqroots dup
- 0 eq
- { pop
- 0
- }
- { 1 eq
- { y1 add /yb exch def
- yb y1 sub ct mul x1 add /xb exch def
- xb yb 1
- }
- { y1 add /ya exch def
- ya y1 sub ct mul x1 add /xa exch def
- y1 add /yb exch def
- yb y1 sub ct mul x1 add /xb exch def
- xa ya xb yb 2
- } ifelse
- } ifelse
- } ifelse
- end
- % (Leaving ldiagcircleintersect) 1 ldiagdebugprint
-} def
-
-% find line which is the perpendicular bisector of two points, defined
-% by two points
-% x1 y1 x2 y2 ldiaglinebetween x3 y3 x4 y4
-/ldiaglinebetween
-{ % (Entering ldiaglinebetween) 4 ldiagdebugprint
- /y2 exch def /x2 exch def
- /y1 exch def /x1 exch def
-
- % let x3, y3 be the point halfway between the two points
- x1 y1 x2 y2 ldiagpadd 0.5 ldiagpmul
- /y3 exch def /x3 exch def
-
- % find a point perpendicular to x3, y3
- x3 y3 50 x1 y1 x2 y2 ldiagangleto 90 dg add ldiagatangle
-
- % plus x3 y3 gives the two points
- x3 y3
-
- % (Leaving ldiaglinebetween) 4 ldiagdebugprint
-} def
-
-% find <proc>@<string>: <proc> <string> ldiagfindlabel <any> true
-% <proc> <string> false
-/ldiagfindlabel
-{
- % (Entering ldiagfindlabel) 2 ldiagdebugprint
- exch dup length 1 ne
- { exch false
- % (Leaving ldiagfindabel (length not 1)) 3 ldiagdebugprint
- }
- { dup 0 get type /nametype ne
- { exch false
- % (Leaving ldiagfindabel (not a name)) 3 ldiagdebugprint
- }
- { dup 0 get 50 string cvs (@) ldiagconcat 2 index ldiagconcat dup where
- { exch get exch pop exch pop cvx exec true
- % (Leaving ldiagfindlabel with success) 100 ldiagdebugprint
- }
- {
- pop exch false
- % (Leaving ldiagfindabel (concat not sensible)) 3 ldiagdebugprint
- } ifelse
- } ifelse
- } ifelse
-} bind def
-
-% execute <proc>@<string> or else default: <proc> <string> ldiagdolabel <various>
-/ldiagdolabel
-{
- % (Entering ldiagdolabel) 2 ldiagdebugprint
- ldiagfindlabel not
- {
- dup (CIRCUM) eq
- { pop pop pop 0 0
- }
- {
- dup (ANGLE) eq
- { pop pop 0
- }
- { pop cvx exec
- } ifelse
- } ifelse
- } if
- % (Leaving ldiagdolabel) 2 ldiagdebugprint
-} bind def
-
-% execute a proc depending on whether number is negative, zero, or positive
-% procneg proczero procpos number ldiagsigncase <anything>
-/ldiagsigncase
-{
- % (Entering ldiagsigncase) 4 ldiagdebugprint
- dup 0 lt
- { pop pop pop exec
- }
- { 0 gt
- { exch pop exch pop exec
- }
- { pop exch pop exec
- } ifelse
- } ifelse
- % (Leaving ldiagsigncase) 0 ldiagdebugprint
-} bind def
-
-% execute proci if angle is in ith quadrant
-% proc45 proc270 proc180 proc90 proc0 proc315 proc225 proc135 angle ldiagquadcase <anything>
-/ldiagquadcase
-{
- % (Entering ldiagquadcase) 9 ldiagdebugprint
- round ldiagfixangle cvi dup 90 mod 0 eq
- { 90 idiv 4 add } { 90 idiv } ifelse
- 8 exch roll pop pop pop pop pop pop pop exec
- % (Leaving ldiagquadcase) 0 ldiagdebugprint
-} bind def
-
-% decode Lout length into PostScript length
-% <string> ldiagdecodelength <number>
-/ldiagdecodelength
-{
- % (Entering ldiagdecodelength) 1 ldiagdebugprint
- (f) search
- { exch pop exch pop cvr ft
- }
- { (c) search
- { exch pop exch pop cvr cm
- }
- { (p) search
- { exch pop exch pop cvr pt
- }
- { (m) search
- { exch pop exch pop cvr em
- }
- { (s) search
- { exch pop exch pop cvr sp
- }
- { (v) search
- { exch pop exch pop cvr vs
- }
- { (i) search
- { exch pop exch pop cvr in
- }
- { pop 0
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- } ifelse
- % (Leaving ldiagdecodelength) 1 ldiagdebugprint
-} def
-
-% implement aabout function
-% logical form: <circum> <extra> <centre> aabout <point>
-% actual form: { <labelorpoint> } cvlit <length> [ <point> ] cvx aabout <point>
-/ldiagaabout
-{
- /centre exch def
- /extra exch def
- /circum exch def
-
- /ZXCTR [ centre ] cvx def
- /ZFCTR [ circum (CTR) ldiagdolabel ] cvx def
- /ZAREF ZFCTR ZXCTR ldiagangleto def
- /ZAMIN 0 dg def
- /ZPMIN [ circum (CTR) ldiagdolabel ZAREF ZAMIN sub
- circum (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 extra ZAREF ZAMIN sub ldiagatangle
- ldiagpadd ] cvx def
-
- /ZAMAX 90 dg def
- /ZPMAX [ circum (CTR) ldiagdolabel ZAREF ZAMAX sub
- circum (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 extra ZAREF ZAMAX sub ldiagatangle
- ldiagpadd ] cvx def
-
- 1 1 20
- { /xval exch def
- /ZAMID ZAMIN ZAMAX add 0.5 mul def
- /ZPMID [ circum (CTR) ldiagdolabel ZAREF ZAMID sub
- circum (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 extra ZAREF ZAMID sub ldiagatangle
- ldiagpadd ] cvx def
- ZPMID ZXCTR ldiagdistance ZFCTR ZXCTR ldiagdistance gt
- {
- /ZAMAX [ ZAMID ] cvx def
- /ZPMAX [ ZPMID ] cvx def
- }
- {
- /ZAMIN [ ZAMID ] cvx def
- /ZPMIN [ ZPMID ] cvx def
- } ifelse
- } for
- ZPMID
-} def
-
-% implement cabout function
-% logical form: <circum> <extra> <centre> cabout <point>
-% actual form: { <labelorpoint> } cvlit <length> [ <point> ] cvx cabout <point>
-/ldiagcabout
-{
- /centre exch def
- /extra exch def
- /circum exch def
-
- /ZXCTR [ centre ] cvx def
- /ZFCTR [ circum (CTR) ldiagdolabel ] cvx def
- /ZAREF ZFCTR ZXCTR ldiagangleto def
- /ZAMIN 0 dg def
- /ZPMIN [ circum (CTR) ldiagdolabel ZAREF ZAMIN add
- circum (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 extra ZAREF ZAMIN add ldiagatangle
- ldiagpadd ] cvx def
-
- /ZAMAX 90 dg def
- /ZPMAX [ circum (CTR) ldiagdolabel ZAREF ZAMAX add
- circum (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 extra ZAREF ZAMAX add ldiagatangle
- ldiagpadd ] cvx def
-
- 1 1 20
- { /xval exch def
- /ZAMID ZAMIN ZAMAX add 0.5 mul def
- /ZPMID [ circum (CTR) ldiagdolabel ZAREF ZAMID add
- circum (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 extra ZAREF ZAMID add ldiagatangle
- ldiagpadd ] cvx def
- ZPMID ZXCTR ldiagdistance ZFCTR ZXCTR ldiagdistance gt
- {
- /ZAMAX [ ZAMID ] cvx def
- /ZPMAX [ ZPMID ] cvx def
- }
- {
- /ZAMIN [ ZAMID ] cvx def
- /ZPMIN [ ZPMID ] cvx def
- } ifelse
- } for
- ZPMID
-} def
-
-% fromarrowlength toarrowlength { from } { to } xindent zindent ldiaglinepath -
-/ldiaglinepath
-{
- % (entering ldiaglinepath) 0 ldiagdebugprint
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel to (CTR) ldiagdolabel ldiagangleto
- /FROM@ANGLE ldiagangledef
- from (CTR) ldiagdolabel FROM@ANGLE from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength FROM@ANGLE ldiagatangle ldiagpadd
- /FROM ldiagpointdef
-
- FROM@ANGLE /TO@ANGLE ldiagangledef
- to (CTR) ldiagdolabel TO@ANGLE 180 dg sub to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength TO@ANGLE 180 dg sub ldiagatangle ldiagpadd /TO ldiagpointdef
-
- FROM 0.5 ldiagpmul TO 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- FROM@ANGLE /LMID@ANGLE ldiagangledef
-
- /XINDENT xindent FROM LMID ldiagdistance ldiagmin def
- FROM 0 0 XINDENT FROM@ANGLE ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
-
- /ZINDENT zindent TO LMID ldiagdistance ldiagmin def
- 0 0 ZINDENT FROM@ANGLE ldiagatangle TO ldiagpsub /LTO ldiagpointdef
- FROM@ANGLE /LTO@ANGLE ldiagangledef
-
- direct { FROM TO } { FROM LFROM LMID LTO TO } ifelse
-
- % (leaving ldiaglinepath) 0 ldiagdebugprint
-} def
-
-% fromarrowlength toarrowlength { from } { to } xindent zindent pathgap ldiagdoublelinepath -
-/ldiagdoublelinepath
-{
- % (entering ldiagdoublelinepath) 0 ldiagdebugprint
- /pathgap exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel to (CTR) ldiagdolabel ldiagangleto
- /FROM@ANGLE ldiagangledef
- from (CTR) ldiagdolabel FROM@ANGLE from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength FROM@ANGLE ldiagatangle ldiagpadd
- /FROM ldiagpointdef
-
- FROM@ANGLE /TO@ANGLE ldiagangledef
- to (CTR) ldiagdolabel TO@ANGLE 180 dg sub to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength TO@ANGLE 180 dg sub ldiagatangle ldiagpadd /TO ldiagpointdef
-
- FROM 0.5 ldiagpmul TO 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- FROM@ANGLE /LMID@ANGLE ldiagangledef
-
- /XINDENT xindent FROM LMID ldiagdistance ldiagmin def
- FROM 0 0 XINDENT FROM@ANGLE ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
-
- /ZINDENT zindent TO LMID ldiagdistance ldiagmin def
- 0 0 ZINDENT FROM@ANGLE ldiagatangle TO ldiagpsub /LTO ldiagpointdef
- FROM@ANGLE /LTO@ANGLE ldiagangledef
-
- direct {
- FROM pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- TO pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- []
- FROM pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- TO pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- }
- {
- FROM pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- LFROM pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- LMID pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- LTO pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- TO pathgap 2 div FROM@ANGLE 90 dg sub ldiagatangle
- []
- FROM pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- LFROM pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- LMID pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- LTO pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- TO pathgap 2 div FROM@ANGLE 90 dg add ldiagatangle
- } ifelse
-
- % (leaving ldiagdoublelinepath) 0 ldiagdebugprint
-} def
-
-% fromarrowlen toarrowlen { from } { to } xindent zindent bias ldiagacurvepath -
-/ldiagacurvepath
-{
- % (entering ldiagacurvepath) 0 ldiagdebugprint
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- %/B1 bias 0.02 ft ldiagmax def
- %/B2 from (CTR) ldiagdolabel to (CTR) ldiagdolabel ldiagdistance 0.5 mul def
- %/BIAS B1 B2 ldiagmin def
- /BIAS bias 0.02 ft ldiagmax def
- /XMID [ from (CTR) ldiagdolabel 0.5 ldiagpmul
- to (CTR) ldiagdolabel 0.5 ldiagpmul ldiagpadd ] cvx def
- /XTOP [ XMID 0 0 BIAS from (CTR) ldiagdolabel to (CTR) ldiagdolabel
- ldiagangleto 90 dg sub ldiagatangle ldiagpadd ] cvx def
- /CTR [ from (CTR) ldiagdolabel XTOP ldiaglinebetween
- to (CTR) ldiagdolabel XTOP ldiaglinebetween
- ldiaglineintersect ] cvx def
-
- from fromarrowlength [ CTR ] cvx ldiagaabout /FROM ldiagpointdef
- from (CTR) ldiagdolabel FROM ldiagdistance 0 gt
- { from (CTR) ldiagdolabel FROM ldiagangleto
- }
- { CTR FROM ldiagangleto 90 dg add
- } ifelse /FROM@ANGLE ldiagangledef
-
- to toarrowlength [ CTR ] cvx ldiagcabout /TO ldiagpointdef
- TO to (CTR) ldiagdolabel ldiagdistance 0 gt
- { TO to (CTR) ldiagdolabel ldiagangleto
- }
- { CTR TO ldiagangleto 90 dg add
- } ifelse /TO@ANGLE ldiagangledef
-
- /RADIUS CTR FROM ldiagdistance def
- CTR 0 0 RADIUS CTR FROM ldiagangleto 360 dg CTR TO ldiagangleto
- add CTR FROM ldiagangleto sub cvi 360 mod 0.5 mul add
- ldiagatangle ldiagpadd /LMID ldiagpointdef
- CTR LMID ldiagangleto 90 dg add /LMID@ANGLE ldiagangledef
-
- /XINDENT xindent FROM LMID ldiagdistance ldiagmin def
- CTR 0 0 RADIUS CTR FROM 0 0 XINDENT FROM@ANGLE ldiagatangle
- ldiagpadd ldiagangleto ldiagatangle ldiagpadd /LFROM ldiagpointdef
- CTR LFROM ldiagangleto 90 dg add /LFROM@ANGLE ldiagangledef
-
- /ZINDENT zindent TO LMID ldiagdistance ldiagmin def
- CTR 0 0 RADIUS CTR TO 0 0 ZINDENT TO@ANGLE 180 dg add
- ldiagatangle ldiagpadd ldiagangleto ldiagatangle ldiagpadd /LTO ldiagpointdef
- CTR LTO ldiagangleto 90 dg add /LTO@ANGLE ldiagangledef
-
- direct
- { FROM [CTR] TO }
- { FROM [CTR] LFROM [CTR] LMID [CTR] LTO [CTR] TO }
- ifelse
-
- % (leaving ldiagacurvepath) 0 ldiagdebugprint
-} def
-
-% fromarrowlen toarrowlen { from } { to } xindent zindent bias ldiagccurvepath -
-/ldiagccurvepath
-{
- % (entering ldiagccurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- %/B1 bias 0.02 ft ldiagmax def
- %/B2 from (CTR) ldiagdolabel to (CTR) ldiagdolabel ldiagdistance 0.5 mul def
- %/BIAS B1 B2 ldiagmin def
- /BIAS bias 0.02 ft ldiagmax def
- /XMID [ from (CTR) ldiagdolabel 0.5 ldiagpmul
- to (CTR) ldiagdolabel 0.5 ldiagpmul ldiagpadd ] cvx def
- /XTOP [ XMID 0 0 BIAS from (CTR) ldiagdolabel to (CTR) ldiagdolabel
- ldiagangleto 90 dg add ldiagatangle ldiagpadd ] cvx def
- /CTR [ from (CTR) ldiagdolabel XTOP ldiaglinebetween
- to (CTR) ldiagdolabel XTOP ldiaglinebetween ldiaglineintersect ] cvx def
-
- from fromarrowlength [ CTR ] cvx ldiagcabout /FROM ldiagpointdef
- from (CTR) ldiagdolabel FROM ldiagdistance 0 gt
- { from (CTR) ldiagdolabel FROM ldiagangleto }
- { CTR FROM ldiagangleto 90 dg sub }
- ifelse /FROM@ANGLE ldiagangledef
-
- to toarrowlength [ CTR ] cvx ldiagaabout /TO ldiagpointdef
- TO to (CTR) ldiagdolabel ldiagdistance 0 gt
- { TO to (CTR) ldiagdolabel ldiagangleto }
- { CTR TO ldiagangleto 90 dg sub }
- ifelse /TO@ANGLE ldiagangledef
-
- /RADIUS [ CTR FROM ldiagdistance ] cvx def
- CTR 0 0 RADIUS CTR TO ldiagangleto 360 dg CTR FROM ldiagangleto add
- CTR TO ldiagangleto sub cvi 360 cvi mod 2 div add ldiagatangle
- ldiagpadd /LMID ldiagpointdef
- CTR LMID ldiagangleto 90 dg sub /LMID@ANGLE ldiagangledef
-
- /XINDENT [ xindent FROM LMID ldiagdistance ldiagmin ] cvx def
- CTR 0 0 RADIUS CTR FROM 0 0 XINDENT FROM@ANGLE ldiagatangle ldiagpadd
- ldiagangleto ldiagatangle ldiagpadd /LFROM ldiagpointdef
- CTR LFROM ldiagangleto 90 dg sub /LFROM@ANGLE ldiagangledef
-
- /ZINDENT [ zindent TO LMID ldiagdistance ldiagmin ] cvx def
- CTR 0 0 RADIUS CTR TO 0 0 ZINDENT TO@ANGLE 180 dg add ldiagatangle
- ldiagpadd ldiagangleto ldiagatangle ldiagpadd /LTO ldiagpointdef
- CTR LTO ldiagangleto 90 dg sub /LTO@ANGLE ldiagangledef
-
- direct
- { FROM [CTR clockwise] TO }
- { FROM [CTR clockwise] LFROM [CTR clockwise]
- LMID [CTR clockwise] LTO [CTR clockwise] TO }
- ifelse
- % (leaving ldiagccurvepath) 0 ldiagdebugprint
-} def
-
-
-% farr tarr { from } { to } xindent zindent [frompt] [topt] ldiagbezierpath -
-/ldiagbezierpath
-{
- % (entering ldiagbezierpath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- cvx /topt exch def
- cvx /frompt exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel frompt ldiagangleto /FROM@ANGLE ldiagangledef
- from (CTR) ldiagdolabel FROM@ANGLE from (CIRCUM) ldiagdolabel
- ldiagpadd 0 0 fromarrowlength FROM@ANGLE ldiagatangle ldiagpadd
- /FROM ldiagpointdef
-
- topt to (CTR) ldiagdolabel ldiagangleto /TO@ANGLE ldiagangledef
- to (CTR) ldiagdolabel TO@ANGLE 180 dg add to (CIRCUM) ldiagdolabel
- ldiagpadd 0 0 toarrowlength TO@ANGLE 180 dg add ldiagatangle ldiagpadd
- /TO ldiagpointdef
-
- FROM 0 0 xindent FROM@ANGLE ldiagatangle ldiagpadd
- /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
-
- TO 0 0 zindent TO@ANGLE 180 dg add ldiagatangle ldiagpadd
- /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
-
- FROM TO ldiagpadd frompt ldiagpadd topt ldiagpadd 0.25 ldiagpmul
- /LMID ldiagpointdef
-
- FROM [frompt topt] TO
-
- % (leaving ldiagbezierpath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-
-% farr tarr { from } { to } xindent zindent ldiagvhlinepath -
-/ldiagvhlinepath
-{
- % (entering ldiagvhlinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /CTR [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel exch pop ] cvx def
- /FANG [ from (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
- /TANG [ to (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
-
- from (CTR) ldiagdolabel FANG from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength FANG ldiagatangle ldiagpadd /FROM ldiagpointdef
- FANG /FROM@ANGLE ldiagangledef
-
- to (CTR) ldiagdolabel TANG to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength TANG ldiagatangle ldiagpadd /TO ldiagpointdef
- TANG 180 dg add /TO@ANGLE ldiagangledef
-
- /FDIST [ FROM CTR ldiagdistance ] cvx def
- /TDIST [ TO CTR ldiagdistance ] cvx def
- /XINDENT [ xindent FDIST ldiagmin ] cvx def
- /ZINDENT [ zindent TDIST ldiagmin ] cvx def
- FROM 0 0 XINDENT FANG ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- TO 0 0 ZINDENT TANG ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
-
- CTR /LMID ldiagpointdef
- 0 0 1 ft FANG 180 dg add ldiagatangle
- 0 0 1 ft TANG 180 dg add ldiagatangle
- ldiagangleto /LMID@ANGLE ldiagangledef
-
- FROM LFROM LMID LTO TO
-
- % (leaving ldiagvhlinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent radius ldiagvhcurvepath -
-/ldiagvhcurvepath
-{
- % (entering ldiagvhcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /radius exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /CTR [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel exch pop ] cvx def
- /FANG [ from (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
- /TANG [ to (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
-
- from (CTR) ldiagdolabel FANG from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength FANG ldiagatangle ldiagpadd /FROM ldiagpointdef
- FANG /FROM@ANGLE ldiagangledef
-
- to (CTR) ldiagdolabel TANG to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength TANG ldiagatangle ldiagpadd /TO ldiagpointdef
- TANG 180 dg add /TO@ANGLE ldiagangledef
-
- /FDIST [ FROM CTR ldiagdistance ] cvx def
- /TDIST [ TO CTR ldiagdistance ] cvx def
- /RADIUS [ radius FDIST TDIST ldiagmin ldiagmin ] cvx def
- /XINDENT [ xindent FDIST RADIUS sub ldiagmin ] cvx def
- /ZINDENT [ zindent TDIST RADIUS sub ldiagmin ] cvx def
-
- FROM 0 0 XINDENT FANG ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- TO 0 0 ZINDENT TANG ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
-
- /FCTR [ CTR 0 0 RADIUS FROM@ANGLE 180 dg add ldiagatangle ldiagpadd ] cvx def
- /TCTR [ CTR 0 0 RADIUS TO@ANGLE ldiagatangle ldiagpadd ] cvx def
- /XCTR [ CTR 0 0 RADIUS FROM@ANGLE 180 dg add ldiagatangle ldiagpadd
- 0 0 RADIUS TO@ANGLE ldiagatangle ldiagpadd ] cvx def
- XCTR 0 0 RADIUS XCTR CTR ldiagangleto ldiagatangle ldiagpadd
- /LMID ldiagpointdef
- FCTR TCTR ldiagangleto /LMID@ANGLE ldiagangledef
-
- FROM LFROM FCTR
- {[XCTR clockwise]} {} {} {} {} {[XCTR]} {[XCTR clockwise]} {[XCTR]}
- FCTR TCTR ldiagangleto ldiagquadcase
- TCTR LTO TO
-
- % (leaving ldiagvhcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent ldiaghvlinepath -
-/ldiaghvlinepath
-{
- % (entering ldiaghvlinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /CTR [ to (CTR) ldiagdolabel pop from (CTR) ldiagdolabel exch pop ] cvx def
- /FANG [ from (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
- /TANG [ to (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
-
- from (CTR) ldiagdolabel FANG from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength FANG ldiagatangle ldiagpadd /FROM ldiagpointdef
- FANG /FROM@ANGLE ldiagangledef
-
- to (CTR) ldiagdolabel TANG to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength TANG ldiagatangle ldiagpadd /TO ldiagpointdef
- TANG 180 dg add /TO@ANGLE ldiagangledef
-
- /FDIST [ FROM CTR ldiagdistance ] cvx def
- /TDIST [ TO CTR ldiagdistance ] cvx def
- /XINDENT [ xindent FDIST ldiagmin ] cvx def
- /ZINDENT [ zindent TDIST ldiagmin ] cvx def
-
- FROM 0 0 XINDENT FANG ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- TO 0 0 ZINDENT TANG ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
-
- CTR /LMID ldiagpointdef
- 0 0 1 ft FANG 180 dg add ldiagatangle
- 0 0 1 ft TANG 180 dg add ldiagatangle ldiagangleto
- /LMID@ANGLE ldiagangledef
-
- FROM LFROM LMID LTO TO
-
- % (leaving ldiaghvlinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent radius ldiaghvcurvepath -
-/ldiaghvcurvepath
-{
- % (entering ldiaghvcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /radius exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /CTR [ to (CTR) ldiagdolabel pop from (CTR) ldiagdolabel exch pop ] cvx def
- /FANG [ from (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
- /TANG [ to (CTR) ldiagdolabel CTR ldiagangleto ] cvx def
-
- from (CTR) ldiagdolabel FANG from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength FANG ldiagatangle ldiagpadd /FROM ldiagpointdef
- FANG /FROM@ANGLE ldiagangledef
-
- to (CTR) ldiagdolabel TANG to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength TANG ldiagatangle ldiagpadd /TO ldiagpointdef
- TANG 180 dg add /TO@ANGLE ldiagangledef
-
- /FDIST [ FROM CTR ldiagdistance ] cvx def
- /TDIST [ TO CTR ldiagdistance ] cvx def
- /RADIUS [ radius FDIST TDIST ldiagmin ldiagmin ] cvx def
- /XINDENT [ xindent FDIST RADIUS sub ldiagmin ] cvx def
- /ZINDENT [ zindent TDIST RADIUS sub ldiagmin ] cvx def
- FROM 0 0 XINDENT FANG ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- TO 0 0 ZINDENT TANG ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
-
- /FCTR [ CTR 0 0 RADIUS FROM@ANGLE 180 dg add ldiagatangle ldiagpadd ] cvx def
- /TCTR [ CTR 0 0 RADIUS TO@ANGLE ldiagatangle ldiagpadd ] cvx def
- /XCTR [ CTR 0 0 RADIUS FROM@ANGLE 180 dg add ldiagatangle ldiagpadd
- 0 0 RADIUS TO@ANGLE ldiagatangle ldiagpadd ] cvx def
- XCTR 0 0 RADIUS XCTR CTR ldiagangleto ldiagatangle ldiagpadd
- /LMID ldiagpointdef
- FCTR TCTR ldiagangleto /LMID@ANGLE ldiagangledef
-
- FROM LFROM FCTR
- {[XCTR]} {} {} {} {} {[XCTR clockwise]} {[XCTR]} {[XCTR clockwise]}
- FCTR TCTR ldiagangleto ldiagquadcase
- TCTR LTO TO
-
- % (leaving ldiaghvcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias ldiaglvrlinepath -
-/ldiaglvrlinepath
-{
- % (entering ldiaglvrlinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel 180 dg from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength 180 dg ldiagatangle ldiagpadd /FROM ldiagpointdef
- 180 dg /FROM@ANGLE ldiagangledef
-
- to (CTR) ldiagdolabel 180 dg to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength 180 dg ldiagatangle ldiagpadd /TO ldiagpointdef
- 0 dg /TO@ANGLE ldiagangledef
-
- /XLEFT [ FROM pop TO pop ldiagmin bias sub ] cvx def
- XLEFT FROM exch pop /P1 ldiagpointdef
- XLEFT TO exch pop /P2 ldiagpointdef
- /VERT [ P1 P2 ldiagangleto ] cvx def
- P1 P1 0 0 1 ft 180 dg ldiagatangle ldiagpadd 0 0 1 ft VERT ldiagatangle
- ldiagpadd ldiagangleto /P1@ANGLE ldiagangledef
- P2 P2 0 0 1 ft 0 dg ldiagatangle ldiagpadd 0 0 1 ft VERT ldiagatangle
- ldiagpadd ldiagangleto /P2@ANGLE ldiagangledef
-
- P1 0.5 ldiagpmul P2 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- VERT /LMID@ANGLE ldiagangledef
-
- /XINDENT [ xindent FROM P1 ldiagdistance ldiagmin ] cvx def
- /ZINDENT [ zindent P2 TO ldiagdistance ldiagmin ] cvx def
- XINDENT 0 FROM ldiagpsub /LFROM ldiagpointdef
- 180 dg /LFROM@ANGLE ldiagangledef
- ZINDENT 0 TO ldiagpsub /LTO ldiagpointdef
- 0 dg /LTO@ANGLE ldiagangledef
-
- FROM LFROM P1 LMID P2 LTO TO
-
- % (leaving ldiaglvrlinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias radius ldiaglvrcurvepath -
-/ldiaglvrcurvepath
-{
- % (entering ldiaglvrcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /radius exch def
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel 180 dg from (CIRCUM) ldiagdolabel ldiagpadd 0 0
- fromarrowlength 180 dg ldiagatangle ldiagpadd /FROM ldiagpointdef
- 180 dg /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel 180 dg to (CIRCUM) ldiagdolabel ldiagpadd 0 0
- toarrowlength 180 dg ldiagatangle ldiagpadd /TO ldiagpointdef
- 0 dg /TO@ANGLE ldiagangledef
- /XLEFT [ FROM pop TO pop ldiagmin bias sub ] cvx def
- /XP1 [ XLEFT FROM exch pop ] cvx def
- /XP2 [ XLEFT TO exch pop ] cvx def
- /VERT [ XP1 XP2 ldiagangleto ] cvx def
- XP1 0.5 ldiagpmul XP2 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- VERT /LMID@ANGLE ldiagangledef
- /XINDENT [ xindent FROM XP1 ldiagdistance ldiagmin ] cvx def
- /ZINDENT [ zindent XP2 TO ldiagdistance ldiagmin ] cvx def
- XINDENT 0 FROM ldiagpsub /LFROM ldiagpointdef
- 180 dg /LFROM@ANGLE ldiagangledef
- ZINDENT 0 TO ldiagpsub /LTO ldiagpointdef
- 0 dg /LTO@ANGLE ldiagangledef
- /RADIUS [ radius XP1 XP2 ldiagdistance 2 div ldiagmin ] cvx def
- /XP1PRE [ XP1 0 0 RADIUS 0 dg ldiagatangle ldiagpadd ] cvx def
- /XP1POST [ XP1 0 0 RADIUS VERT ldiagatangle ldiagpadd ] cvx def
- /XP1CTR [ XP1PRE 0 0 RADIUS VERT ldiagatangle ldiagpadd ] cvx def
- XP1CTR 0 0 RADIUS XP1CTR XP1 ldiagangleto ldiagatangle ldiagpadd
- /P1 ldiagpointdef
- XP1PRE XP1POST ldiagangleto /P1@ANGLE ldiagangledef
- /XP2PRE [ 0 0 RADIUS VERT ldiagatangle XP2 ldiagpsub ] cvx def
- /XP2POST [ XP2 0 0 RADIUS 0 dg ldiagatangle ldiagpadd ] cvx def
- /XP2CTR [ XP2PRE 0 0 RADIUS 0 dg ldiagatangle ldiagpadd ] cvx def
- XP2CTR 0 0 RADIUS XP2CTR XP2 ldiagangleto ldiagatangle ldiagpadd
- /P2 ldiagpointdef
- XP2PRE XP2POST ldiagangleto /P2@ANGLE ldiagangledef
- FROM LFROM XP1PRE
- { } { [XP1CTR] P1 [XP1CTR] } { } { [XP1CTR clockwise] P1 [XP1CTR clockwise] }
- { } { } { } { } VERT round ldiagquadcase
- XP1POST LMID XP2PRE
- { } { [XP2CTR] P2 [XP2CTR] } { } { [XP2CTR clockwise] P2 [XP2CTR clockwise] }
- { } { } { } { } VERT round ldiagquadcase
- XP2POST LTO TO
-
- % (leaving ldiaglvrcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias ldiagrvllinepath -
-/ldiagrvllinepath
-{
- % (entering ldiagrvllinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel 0 dg from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength 0 dg ldiagatangle ldiagpadd /FROM ldiagpointdef
- 0 dg /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel 0 dg to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength 0 dg ldiagatangle ldiagpadd /TO ldiagpointdef
- 180 dg /TO@ANGLE ldiagangledef
- /XRIGHT [ FROM pop TO pop ldiagmax bias add ] cvx def
- XRIGHT FROM exch pop /P1 ldiagpointdef
- XRIGHT TO exch pop /P2 ldiagpointdef
- /VERT [ P1 P2 ldiagangleto ] cvx def
- P1 P1 0 0 1 ft 0 dg ldiagatangle ldiagpadd 0 0 1 ft VERT ldiagatangle
- ldiagpadd ldiagangleto /P1@ANGLE ldiagangledef
- P2 P2 0 0 1 ft 180 dg ldiagatangle ldiagpadd 0 0 1 ft VERT ldiagatangle
- ldiagpadd ldiagangleto /P2@ANGLE ldiagangledef
- P1 0.5 ldiagpmul P2 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- VERT /LMID@ANGLE ldiagangledef
- /XINDENT [ xindent FROM P1 ldiagdistance ldiagmin ] cvx def
- /ZINDENT [ zindent P2 TO ldiagdistance ldiagmin ] cvx def
- FROM XINDENT 0 ldiagpadd /LFROM ldiagpointdef
- 0 dg /LFROM@ANGLE ldiagangledef
- TO ZINDENT 0 ldiagpadd /LTO ldiagpointdef
- 180 dg /LTO@ANGLE ldiagangledef
- FROM LFROM P1 LMID P2 LTO TO
-
- % (leaving ldiagrvllinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-
-% farr tarr { from } { to } xindent zindent bias radius ldiagrvlcurvepath -
-/ldiagrvlcurvepath
-{
- % (entering ldiagrvlcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /radius exch def
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- from (CTR) ldiagdolabel 0 dg from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength 0 dg ldiagatangle ldiagpadd /FROM ldiagpointdef
- 0 dg /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel 0 dg to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength 0 dg ldiagatangle ldiagpadd /TO ldiagpointdef
- 180 dg /TO@ANGLE ldiagangledef
- /XRIGHT [ FROM pop TO pop ldiagmax bias add ] cvx def
- /XP1 [ XRIGHT FROM exch pop ] cvx def
- /XP2 [ XRIGHT TO exch pop ] cvx def
- /VERT [ XP1 XP2 ldiagangleto ] cvx def
- XP1 0.5 ldiagpmul XP2 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- VERT /LMID@ANGLE ldiagangledef
- /XINDENT [ xindent FROM XP1 ldiagdistance ldiagmin ] cvx def
- /ZINDENT [ zindent XP2 TO ldiagdistance ldiagmin ] cvx def
- FROM XINDENT 0 ldiagpadd /LFROM ldiagpointdef
- 0 dg /LFROM@ANGLE ldiagangledef
- TO ZINDENT 0 ldiagpadd /LTO ldiagpointdef
- 180 dg /LTO@ANGLE ldiagangledef
- /RADIUS [ radius XP1 XP2 ldiagdistance 0.5 mul ldiagmin ] cvx def
- /XP1PRE [ XP1 0 0 RADIUS 180 dg ldiagatangle ldiagpadd ] cvx def
- /XP1POST [ XP1 0 0 RADIUS VERT ldiagatangle ldiagpadd ] cvx def
- /XP1CTR [ XP1PRE 0 0 RADIUS VERT ldiagatangle ldiagpadd ] cvx def
- XP1CTR 0 0 RADIUS XP1CTR XP1 ldiagangleto ldiagatangle ldiagpadd
- /P1 ldiagpointdef
- XP1PRE XP1POST ldiagangleto /P1@ANGLE ldiagangledef
- /XP2PRE [ 0 0 RADIUS VERT ldiagatangle XP2 ldiagpsub ] cvx def
- /XP2POST [ XP2 0 0 RADIUS 180 dg ldiagatangle ldiagpadd ] cvx def
- /XP2CTR [ XP2PRE 0 0 RADIUS 180 dg ldiagatangle ldiagpadd ] cvx def
- XP2CTR 0 0 RADIUS XP2CTR XP2 ldiagangleto ldiagatangle ldiagpadd
- /P2 ldiagpointdef
- XP2PRE XP2POST ldiagangleto /P2@ANGLE ldiagangledef
- FROM LFROM XP1PRE
- {} {[XP1CTR clockwise] P1 [XP1CTR clockwise]} {} {[XP1CTR] P1 [XP1CTR]}
- {} {} {} {} VERT round ldiagquadcase
- XP1POST LMID XP2PRE
- {} {[XP2CTR clockwise] P2 [XP2CTR clockwise]} {} {[XP2CTR] P2 [XP2CTR]}
- {} {} {} {} VERT round ldiagquadcase
- XP2POST LTO TO
-
- % (leaving ldiagrvlcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias fbias tbias ldiagdwraplinepath -
-/ldiagdwraplinepath
-{
- % (entering ldiagdwraplinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /tbias exch def
- /fbias exch def
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /DIRN [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel pop
- lt { 180 dg } { 0 dg } ifelse ] cvx def
- from (CTR) ldiagdolabel DIRN from (CIRCUM) ldiagdolabel ldiagpadd 0 0
- fromarrowlength DIRN ldiagatangle ldiagpadd /FROM ldiagpointdef
- DIRN /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel DIRN 180 dg add to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength DIRN 180 dg add ldiagatangle ldiagpadd /TO ldiagpointdef
- DIRN /TO@ANGLE ldiagangledef
- FROM 0 0 fbias 0 ldiagmax DIRN ldiagatangle ldiagpadd /P1 ldiagpointdef
- DIRN 180 dg eq { 225 dg } { -45 dg } ifelse /P1@ANGLE ldiagangledef
- TO 0 0 tbias 0 ldiagmax DIRN 180 dg add ldiagatangle ldiagpadd
- /P4 ldiagpointdef
- DIRN 180 dg eq { 135 dg } { 45 dg } ifelse /P4@ANGLE ldiagangledef
- /YC [ from (CTR) ldiagdolabel 270 dg from (CIRCUM) ldiagdolabel ldiagpadd
- exch pop to (CTR) ldiagdolabel 270 dg to (CIRCUM) ldiagdolabel ldiagpadd
- exch pop ldiagmin bias 0 ldiagmax sub ] cvx def
- P1 pop YC /P2 ldiagpointdef
- P4@ANGLE 180 dg sub /P2@ANGLE ldiagangledef
- P4 pop YC /P3 ldiagpointdef
- P1@ANGLE 180 dg sub /P3@ANGLE ldiagangledef
- /XINDENT [ xindent FROM P1 ldiagdistance ldiagmin ] cvx def
- FROM 0 0 XINDENT DIRN ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- /ZINDENT [ zindent TO P4 ldiagdistance ldiagmin ] cvx def
- TO 0 0 ZINDENT DIRN 180 dg add ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
- P2 0.5 ldiagpmul P3 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- DIRN 180 dg sub /LMID@ANGLE ldiagangledef
- FROM P1 P2 P3 P4 TO
-
- % (leaving ldiagdwraplinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias fbias tbias radius
-% ldiagdwrapcurvepath -
-/ldiagdwrapcurvepath
-{
- % (entering ldiagdwrapcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /radius exch def
- /tbias exch def
- /fbias exch def
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /DIRN [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel pop lt
- { 180 dg } { 0 dg } ifelse ] cvx def
- /CLOCK [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel pop lt
- { anticlockwise } { clockwise } ifelse ] cvx def
- from (CTR) ldiagdolabel DIRN from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength DIRN ldiagatangle ldiagpadd /FROM ldiagpointdef
- DIRN /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel DIRN 180 dg add to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength DIRN 180 dg add ldiagatangle ldiagpadd /TO ldiagpointdef
- DIRN /TO@ANGLE ldiagangledef
- /XP1 [ FROM 0 0 fbias 0 ldiagmax DIRN ldiagatangle ldiagpadd ] cvx def
- /XP4 [ TO 0 0 tbias 0 ldiagmax DIRN 180 dg add ldiagatangle ldiagpadd ] cvx def
- /YC [ from (CTR) ldiagdolabel 270 dg from (CIRCUM) ldiagdolabel ldiagpadd
- exch pop to (CTR) ldiagdolabel 270 dg to (CIRCUM) ldiagdolabel ldiagpadd
- exch pop ldiagmin bias 0 ldiagmax sub ] cvx def
- /XP2 [ XP1 pop YC ] cvx def
- /XP3 [ XP4 pop YC ] cvx def
- /RP1 [ radius XP1 FROM ldiagdistance XP1 XP2 ldiagdistance 2 div
- ldiagmin ldiagmin ] cvx def
- /XP1PRE [ XP1 0 0 RP1 XP1 FROM ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP1POST [ XP1 0 0 RP1 XP1 XP2 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP1CTR [ XP1PRE 0 0 RP1 XP1 XP2 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP1CTR 0 0 RP1 XP1CTR XP1 ldiagangleto ldiagatangle ldiagpadd /P1 ldiagpointdef
- XP1CTR P1 ldiagangleto DIRN add 90 dg sub /P1@ANGLE ldiagangledef
- /RP2 [ radius XP1 XP2 ldiagdistance 2 div XP2 XP3 ldiagdistance 2 div
- ldiagmin ldiagmin ] cvx def
- /XP2PRE [ XP2 0 0 RP2 XP2 XP1 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP2POST [ XP2 0 0 RP2 XP2 XP3 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP2CTR [ XP2PRE 0 0 RP2 XP2 XP3 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP2CTR 0 0 RP2 XP2CTR XP2 ldiagangleto ldiagatangle ldiagpadd /P2 ldiagpointdef
- XP2CTR P2 ldiagangleto DIRN add 90 dg sub /P2@ANGLE ldiagangledef
- /RP3 [ radius XP2 XP3 ldiagdistance 2 div XP3 XP4 ldiagdistance 2 div
- ldiagmin ldiagmin ] cvx def
- /XP3PRE [ XP3 0 0 RP3 XP3 XP2 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP3POST [ XP3 0 0 RP3 XP3 XP4 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP3CTR [ XP3PRE 0 0 RP3 XP3 XP4 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP3CTR 0 0 RP3 XP3CTR XP3 ldiagangleto ldiagatangle ldiagpadd /P3 ldiagpointdef
- XP3CTR P3 ldiagangleto DIRN add 90 dg sub /P3@ANGLE ldiagangledef
- /RP4 [ radius XP4 XP3 ldiagdistance 2 div XP4 TO ldiagdistance
- ldiagmin ldiagmin ] cvx def
- /XP4PRE [ XP4 0 0 RP4 XP4 XP3 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP4POST [ XP4 0 0 RP4 XP4 TO ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP4CTR [ XP4PRE 0 0 RP4 XP4 TO ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP4CTR 0 0 RP4 XP4CTR XP4 ldiagangleto ldiagatangle ldiagpadd /P4 ldiagpointdef
- XP4CTR P4 ldiagangleto DIRN add 90 dg sub /P4@ANGLE ldiagangledef
- /XINDENT [ xindent FROM XP1PRE ldiagdistance ldiagmin ] cvx def
- FROM 0 0 XINDENT DIRN ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- XP2 0.5 ldiagpmul XP3 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- DIRN 180 dg sub /LMID@ANGLE ldiagangledef
- /ZINDENT [ zindent TO XP4POST ldiagdistance ldiagmin ] cvx def
- TO 0 0 ZINDENT DIRN 180 dg add ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
- FROM LFROM
- XP1PRE [XP1CTR CLOCK] XP1POST
- XP2PRE [XP2CTR CLOCK] XP2POST
- LMID
- XP3PRE [XP3CTR CLOCK] XP3POST
- XP4PRE [XP4CTR CLOCK] XP4POST
- LTO TO
-
- % (leaving ldiagdwrapcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias fbias tbias ldiaguwraplinepath -
-/ldiaguwraplinepath
-{
- % (entering ldiaguwraplinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /tbias exch def
- /fbias exch def
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /DIRN [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel pop lt
- { 180 dg } { 0 dg } ifelse ] cvx def
- from (CTR) ldiagdolabel DIRN from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength DIRN ldiagatangle ldiagpadd /FROM ldiagpointdef
- DIRN /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel DIRN 180 dg add to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength DIRN 180 dg add ldiagatangle ldiagpadd /TO ldiagpointdef
- DIRN /TO@ANGLE ldiagangledef
- FROM 0 0 fbias 0 ldiagmax DIRN ldiagatangle ldiagpadd /P1 ldiagpointdef
- DIRN 180 dg eq { 135 dg } { 45 dg } ifelse /P1@ANGLE ldiagangledef
- TO 0 0 tbias 0 ldiagmax DIRN 180 dg add ldiagatangle ldiagpadd
- /P4 ldiagpointdef
- DIRN 180 dg eq { 225 dg } { -45 dg } ifelse /P4@ANGLE ldiagangledef
- /YC [ from (CTR) ldiagdolabel 90 dg from (CIRCUM) ldiagdolabel ldiagpadd
- exch pop to (CTR) ldiagdolabel 90 dg to (CIRCUM) ldiagdolabel ldiagpadd
- exch pop ldiagmax bias 0 ldiagmax add ] cvx def
- P1 pop YC /P2 ldiagpointdef
- P4@ANGLE 180 dg sub /P2@ANGLE ldiagangledef
- P4 pop YC /P3 ldiagpointdef
- P1@ANGLE 180 dg sub /P3@ANGLE ldiagangledef
- /XINDENT [ xindent FROM P1 ldiagdistance ldiagmin ] cvx def
- FROM 0 0 XINDENT DIRN ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- /ZINDENT [ zindent TO P4 ldiagdistance ldiagmin ] cvx def
- TO 0 0 ZINDENT DIRN 180 dg add ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
- P2 0.5 ldiagpmul P3 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- DIRN 180 dg sub /LMID@ANGLE ldiagangledef
- FROM P1 P2 P3 P4 TO
-
- % (leaving ldiaguwraplinepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% farr tarr { from } { to } xindent zindent bias fbias tbias radius
-% ldiaguwrapcurvepath -
-/ldiaguwrapcurvepath
-{
- % (entering ldiaguwrapcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
- /radius exch def
- /tbias exch def
- /fbias exch def
- /bias exch def
- /zindent exch def
- /xindent exch def
- cvlit /to exch def
- cvlit /from exch def
- /toarrowlength exch def
- /fromarrowlength exch def
-
- /DIRN [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel pop lt
- { 180 dg } { 0 dg } ifelse ] cvx def
- /CLOCK [ from (CTR) ldiagdolabel pop to (CTR) ldiagdolabel pop lt
- { clockwise } { anticlockwise } ifelse ] cvx def
- from (CTR) ldiagdolabel DIRN from (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 fromarrowlength DIRN ldiagatangle ldiagpadd /FROM ldiagpointdef
- DIRN /FROM@ANGLE ldiagangledef
- to (CTR) ldiagdolabel DIRN 180 dg add to (CIRCUM) ldiagdolabel ldiagpadd
- 0 0 toarrowlength DIRN 180 dg add ldiagatangle ldiagpadd /TO ldiagpointdef
- DIRN /TO@ANGLE ldiagangledef
- /XP1 [ FROM 0 0 fbias 0 ldiagmax DIRN ldiagatangle ldiagpadd ] cvx def
- /XP4 [ TO 0 0 tbias 0 ldiagmax DIRN 180 dg add ldiagatangle ldiagpadd ] cvx def
- /YC [ from (CTR) ldiagdolabel 90 dg from (CIRCUM) ldiagdolabel ldiagpadd
- exch pop to (CTR) ldiagdolabel 90 dg to (CIRCUM) ldiagdolabel ldiagpadd
- exch pop ldiagmax bias 0 ldiagmax add ] cvx def
- /XP2 [ XP1 pop YC ] cvx def
- /XP3 [ XP4 pop YC ] cvx def
- /RP1 [ radius XP1 FROM ldiagdistance XP1 XP2 ldiagdistance 2 div
- ldiagmin ldiagmin ] cvx def
- /XP1PRE [ XP1 0 0 RP1 XP1 FROM ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP1POST [ XP1 0 0 RP1 XP1 XP2 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP1CTR [ XP1PRE 0 0 RP1 XP1 XP2 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP1CTR 0 0 RP1 XP1CTR XP1 ldiagangleto ldiagatangle ldiagpadd /P1 ldiagpointdef
- XP1CTR P1 ldiagangleto DIRN add 90 dg add /P1@ANGLE ldiagangledef
- /RP2 [ radius XP1 XP2 ldiagdistance 2 div XP2 XP3 ldiagdistance 2 div
- ldiagmin ldiagmin ] cvx def
- /XP2PRE [ XP2 0 0 RP2 XP2 XP1 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP2POST [ XP2 0 0 RP2 XP2 XP3 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP2CTR [ XP2PRE 0 0 RP2 XP2 XP3 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP2CTR 0 0 RP2 XP2CTR XP2 ldiagangleto ldiagatangle ldiagpadd /P2 ldiagpointdef
- XP2CTR P2 ldiagangleto DIRN add 90 dg add /P2@ANGLE ldiagangledef
- /RP3 [ radius XP2 XP3 ldiagdistance 2 div XP3 XP4 ldiagdistance 2 div
- ldiagmin ldiagmin ] cvx def
- /XP3PRE [ XP3 0 0 RP3 XP3 XP2 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP3POST [ XP3 0 0 RP3 XP3 XP4 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP3CTR [ XP3PRE 0 0 RP3 XP3 XP4 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP3CTR 0 0 RP3 XP3CTR XP3 ldiagangleto ldiagatangle ldiagpadd /P3 ldiagpointdef
- XP3CTR P3 ldiagangleto DIRN add 90 dg add /P3@ANGLE ldiagangledef
- /RP4 [ radius XP4 XP3 ldiagdistance 2 div XP4 TO ldiagdistance
- ldiagmin ldiagmin ] cvx def
- /XP4PRE [ XP4 0 0 RP4 XP4 XP3 ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP4POST [ XP4 0 0 RP4 XP4 TO ldiagangleto ldiagatangle ldiagpadd ] cvx def
- /XP4CTR [ XP4PRE 0 0 RP4 XP4 TO ldiagangleto ldiagatangle ldiagpadd ] cvx def
- XP4CTR 0 0 RP4 XP4CTR XP4 ldiagangleto ldiagatangle ldiagpadd /P4 ldiagpointdef
- XP4CTR P4 ldiagangleto DIRN add 90 dg add /P4@ANGLE ldiagangledef
- /XINDENT [ xindent FROM XP1PRE ldiagdistance ldiagmin ] cvx def
- FROM 0 0 XINDENT DIRN ldiagatangle ldiagpadd /LFROM ldiagpointdef
- FROM@ANGLE /LFROM@ANGLE ldiagangledef
- XP2 0.5 ldiagpmul XP3 0.5 ldiagpmul ldiagpadd /LMID ldiagpointdef
- DIRN 180 dg sub /LMID@ANGLE ldiagangledef
- /ZINDENT [ zindent TO XP4POST ldiagdistance ldiagmin ] cvx def
- TO 0 0 ZINDENT DIRN 180 dg add ldiagatangle ldiagpadd /LTO ldiagpointdef
- TO@ANGLE /LTO@ANGLE ldiagangledef
- FROM LFROM
- XP1PRE [XP1CTR CLOCK] XP1POST
- XP2PRE [XP2CTR CLOCK] XP2POST
- LMID
- XP3PRE [XP3CTR CLOCK] XP3POST
- XP4PRE [XP4CTR CLOCK] XP4POST
- LTO TO
-
- % (leaving ldiaguwrapcurvepath) 0 ldiagdebugprint
- % count ( stack size is) 1 ldiagdebugprint pop
-} def
-
-% shape and labels of the @SolidArrowHead symbol
-% - ldiagsolidarrowhead -
-/ldiagsolidarrowhead
-{
- 0 0 xsize ysize 0.5 mul 0 ysize
-} def
-
-% shape and labels of the @OpenArrowHead symbol
-% <pathwidth> ldiagopenarrowhead -
-/ldiagopenarrowhead
-{
- /pathwidth exch def
- /PSW [ 0 0 ] cvx def
- /PNW [ 0 ysize ] cvx def
- /PE [ xsize ysize 0.5 mul ] cvx def
- /REL [ 0 0 pathwidth PE PNW ldiagangleto 90 add ldiagatangle ] cvx def
- /PNA [ 0 ysize 0.5 mul pathwidth 0.5 mul add ] cvx def
- /PSA [ 0 ysize 0.5 mul pathwidth 0.5 mul sub ] cvx def
- /PNI [ PNA PNA xsize 0 ldiagpadd PNW REL ldiagpadd
- PE REL ldiagpadd ldiaglineintersect ] cvx def
- /PSI [ 0 pathwidth PNI ldiagpsub ] cvx def
-
- PSW PE PNW PNI PNA PSA PSI PSW
-} def
-
-% shape and labels of the @HalfOpenArrowHead symbol
-% <pathwidth> ldiaghalfopenarrowhead -
-/ldiaghalfopenarrowhead
-{
- /pathwidth exch def
- 0 0
- xsize ysize 0.5 mul
- 0 ysize
- xsize 0.3 mul ysize 0.5 mul pathwidth 0.5 mul add
- 0 ysize 0.5 mul pathwidth 0.5 mul add
- 0 ysize 0.5 mul pathwidth 0.5 mul sub
- xsize 0.3 mul ysize 0.5 mul pathwidth 0.5 mul sub
- 0 0
-} def
-
-% shape and labels of the @SolidCurvedArrowHead symbol
-% - ldiagsolidcurvedarrowhead -
-/ldiagsolidcurvedarrowhead
-{
- 0 0
- [0 0 xsize ysize 0.5 mul ldiaglinebetween
- xsize 0 xsize ysize ldiaglineintersect clockwise]
- xsize ysize 0.5 mul
- [xsize ysize 0.5 mul 0 ysize ldiaglinebetween
- xsize 0 xsize ysize ldiaglineintersect clockwise]
- 0 ysize
-} def
-
-% shape and labels of the @OpenCurvedArrowHead symbol
-% <pathwidth> ldiagopencurvedarrowhead -
-/ldiagopencurvedarrowhead
-{
- /pathwidth exch def
- /LR [ 0 0 xsize ysize 0.5 mul ldiaglinebetween
- xsize 0 xsize ysize ldiaglineintersect
- ] cvx def
- /UR [ xsize ysize 0.5 mul 0 ysize ldiaglinebetween
- xsize 0 xsize ysize ldiaglineintersect
- ] cvx def
- /PW2 [ pathwidth 0.5 mul ] cvx def
- /UMID [
- 0 ysize 0.5 mul PW2 add
- xsize ysize 0.5 mul PW2 add
- 0 ysize 0 0 1 ft UR 0 ysize ldiagangleto 90 add ldiagatangle
- ldiagpadd 0 ysize ldiaglineintersect
- ] cvx def
- /LMID [ 0 pathwidth UMID ldiagpsub ] cvx def
- 0 0
- [LR clockwise]
- xsize ysize 0.5 mul
- [UR clockwise]
- 0 ysize
- UMID
- 0 ysize 0.5 mul PW2 add
- 0 ysize 0.5 mul PW2 sub
- LMID
- 0 0
-} def
-
-% shape and labels of the @HalfOpenCurvedArrowHead symbol
-% <pathwidth> ldiaghalfopencurvedarrowhead -
-/ldiaghalfopencurvedarrowhead
-{
- /pathwidth exch def
- /LR [ 0 0 xsize ysize 0.5 mul ldiaglinebetween
- xsize 0 xsize ysize ldiaglineintersect
- ] cvx def
- /UR [ xsize ysize 0.5 mul 0 ysize ldiaglinebetween
- xsize 0 xsize ysize ldiaglineintersect
- ] cvx def
- /BR [ 0 0 LR 0 ysize UR ldiaglineintersect ] cvx def
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