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###############################################################################
# #
# Lout @Pie package for drawing pie charts #
# Version 1.0 (October 2002) #
# Jeffrey H. Kingston #
# #
# This program is free software; you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation; either Version 3, or (at your option) #
# any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program; if not, write to the Free Software #
# Foundation, Inc., 59 Temple Place, Suite 330, Boston MA 02111-1307 USA #
# #
# As a special exception, when this file is read by Lout when processing #
# a Lout source document, you may use the result without restriction. #
# #
###############################################################################
@SysPrependGraphic { pief.lpg }
@SysInclude { lengths } # @PSLengths and @LoutLengths
@SysInclude { coltex } # @ColourCommand and @TextureCommand
###############################################################################
# #
# @PieSetup symbol #
# #
###############################################################################
export @Pie
def @PieSetup
named save { no }
named totalweight { 100 }
named radius { 2.5c }
import @PSLengths named initialangle{ 0d }
named leftextra { 0i }
named rightextra { 0i }
named aboveextra { 0i }
named belowextra { 0i }
named leftcaption { }
named rightcaption { }
named abovecaption { }
named belowcaption { }
named leftgap { 0.5c }
named rightgap { 0.5c }
named abovegap { 0.5c }
named belowgap { 0.5c }
named hidecaptions { yes }
named weight { 1 }
named paint { none }
import @TextureImport named texture { solid }
named outlinestyle
named solid { "/lpiesolid" }
named dashed { "/lpiedashed" }
named cdashed { "/lpiecdashed" }
named dotted { "/lpiedotted" }
named noline { "/lpienoline" }
{ solid }
import @PSLengths named outlinedashlength { 0.2f }
import @PSLengths named outlinewidth
named thin { 0.04f }
named medium { 0.08f }
named thick { 0.12f }
{ thin }
named detach
named yes Yes { 0.5 }
named no No { 0.0 }
{ no }
named label { }
named labelfont { -2p }
named labelbreak { clines }
named labelmargin { 0.2f }
named labelformat right @Body { @Body }
named labelradius
named internal { 0.6 }
named external { 1.4 }
{ internal }
import @PSLengths named labeladjust { 0 0 }
named finger { no }
named fingerstyle
named solid { "/lpiesolid" }
named dashed { "/lpiedashed" }
named cdashed { "/lpiecdashed" }
named dotted { "/lpiedotted" }
named noline { "/lpienoline" }
{ solid }
import @PSLengths named fingerdashlength { 0.2f }
import @PSLengths named fingerwidth
named thin { 0.04f }
named medium { 0.08f }
named thick { 0.12f }
{ thin }
named fingerradius { 0.7 }
import @PSLengths named fingeradjust{ 0 0 }
named fingerarrow { no }
import @PSLengths named fingerarrowlength { 0.6f }
import @PSLengths named fingerarrowwidth { 0.45f }
{
###########################################################################
# #
# @Pie symbol #
# #
###########################################################################
export @Slice
def @Pie
named save { save }
named totalweight { totalweight }
named radius { radius }
import @PSLengths named initialangle { initialangle }
named leftextra { leftextra }
named rightextra { rightextra }
named aboveextra { aboveextra }
named belowextra { belowextra }
named leftcaption { leftcaption }
named rightcaption { rightcaption }
named abovecaption { abovecaption }
named belowcaption { belowcaption }
named leftgap { leftgap }
named rightgap { rightgap }
named abovegap { abovegap }
named belowgap { belowgap }
named hidecaptions { hidecaptions }
named weight { weight }
named paint { paint }
import @TextureImport named texture { texture }
named outlinestyle
named solid { "/lpiesolid" }
named dashed { "/lpiedashed" }
named cdashed { "/lpiecdashed" }
named dotted { "/lpiedotted" }
named noline { "/lpienoline" }
{ outlinestyle }
import @PSLengths named outlinedashlength{ outlinedashlength }
import @PSLengths named outlinewidth
named thin { 0.04f }
named medium { 0.08f }
named thick { 0.12f }
{ outlinewidth }
named detach
named yes Yes { 0.5 }
named no No { 0.0 }
{ detach }
named label { label }
named labelfont { labelfont }
named labelbreak { labelbreak }
named labelmargin { labelmargin }
named labelformat right @Body { labelformat @Body }
named labelradius
named internal { 0.6 }
named external { 1.4 }
{ labelradius }
import @PSLengths named labeladjust { labeladjust }
named finger { finger }
named fingerstyle
named solid { "/lpiesolid" }
named dashed { "/lpiedashed" }
named cdashed { "/lpiecdashed" }
named dotted { "/lpiedotted" }
named noline { "/lpienoline" }
{ fingerstyle }
import @PSLengths named fingerdashlength{ fingerdashlength }
import @PSLengths named fingerwidth
named thin { 0.04f }
named medium { 0.08f }
named thick { 0.12f }
{ fingerwidth }
named fingerradius { fingerradius }
import @PSLengths named fingeradjust { fingeradjust }
named fingerarrow { fingerarrow }
import @PSLengths named fingerarrowlength { fingerarrowlength }
import @PSLengths named fingerarrowwidth { fingerarrowwidth }
body @Body
{
#######################################################################
# #
# Miscellaneous helper definitions #
# #
#######################################################################
def @AddPaint left col right texture
{
col @Case {
{ "no" "none" "nopaint" } @Yield "{}"
else @Yield { "{" @ColourCommand col texture "fill }" }
}
}
# Like @Graphic, but affects the graphics state of right parameter
def @InnerGraphic
left ps
right x
{
{ ps gsave // grestore } @Graphic x
}
def @ZeroWidth right x
{
@HContract @VContract {
^|0io @HContract @VContract x |0io
}
}
def @ZeroSize right x
{
@HContract @VContract {
^/0io ^|0io @HContract @VContract x |0io /0io
}
}
#######################################################################
# #
# @Slice #
# #
#######################################################################
def @Slice
named weight { weight }
named paint { paint }
import @TextureImport named texture { texture }
named outlinestyle
named solid { "/lpiesolid" }
named dashed { "/lpiedashed" }
named cdashed { "/lpiecdashed" }
named dotted { "/lpiedotted" }
named noline { "/lpienoline" }
{ outlinestyle }
import @PSLengths named outlinedashlength { outlinedashlength }
import @PSLengths named outlinewidth
named thin { 0.04f }
named medium { 0.08f }
named thick { 0.12f }
{ outlinewidth }
named detach
named yes Yes { 0.5 }
named no No { 0.0 }
{ detach }
named label { label }
named labelfont { labelfont }
named labelbreak { labelbreak }
named labelmargin { labelmargin }
named labelformat right @Body { labelformat @Body }
named labelradius
named internal { 0.6 }
named external { 1.4 }
{ labelradius }
import @PSLengths named labeladjust { labeladjust }
named finger { finger }
named fingerstyle
named solid { "/lpiesolid" }
named dashed { "/lpiedashed" }
named cdashed { "/lpiecdashed" }
named dotted { "/lpiedotted" }
named noline { "/lpienoline" }
{ fingerstyle }
import @PSLengths named fingerdashlength { fingerdashlength }
import @PSLengths named fingerwidth
named thin { 0.04 ft }
named medium { 0.08 ft }
named thick { 0.12 ft }
{ fingerwidth }
named fingerradius { fingerradius }
import @PSLengths named fingeradjust{ fingeradjust }
named fingerarrow { fingerarrow }
import @PSLengths named fingerarrowlength { fingerarrowlength }
import @PSLengths named fingerarrowwidth { fingerarrowwidth }
{
def @DrawSlice
{
outlinedashlength "[" outlinestyle "]"
outlinewidth paint @AddPaint texture
weight detach
"lpiebeginslice"
//
"lpieendslice"
}
def @TranslateLabelAndDrawFinger
{ labeladjust labelradius "lpietranslatelabel"
finger @Case {
{ no No } @Yield ""
{ yes Yes } @Yield {
fingerdashlength "[" fingerstyle "]"
fingerwidth fingeradjust fingerradius
"lpiedrawfinger"
fingerarrow @Case {
{ no No } @Yield ""
{ yes Yes } @Yield {
fingerarrowlength fingerarrowwidth
"lpiedrawarrowhead"
}
}
}
}
}
def @AddMargins right x
{
@HContract @VContract {
//labelmargin ||labelmargin x ||labelmargin //labelmargin
}
}
@Null @ZeroSize @DrawSlice @Graphic
@TranslateLabelAndDrawFinger @InnerGraphic {
@AddMargins labelfont @Font labelbreak @Break labelformat label
} @Null
}
def @Above
{
abovecaption @Case {
"" @Yield ""
else @Yield @OneCol {
||0.5rt clines @Break abovecaption || //abovegap
}
}
}
def @Below
{
belowcaption @Case {
"" @Yield ""
else @Yield @OneCol {
//belowgap ||0.5rt clines @Break belowcaption ||
}
}
}
def @Left
{
leftcaption @Case {
"" @Yield ""
else @Yield @OneRow {
{ //0.5rt clines @Break leftcaption // } ^||leftgap
}
}
}
def @Right
{
rightcaption @Case {
"" @Yield ""
else @Yield @OneRow {
||rightgap { //0.5rt lines @Break rightcaption // }
}
}
}
def @HideWidth right x
{
hidecaptions @Case {
{ No no } @Yield x
{ Yes yes } @Yield @OneCol { ||0io x ||0io }
}
}
def @AddCaptions right x
{
@HContract @VContract
{
| @Above |
/ @HideWidth @Left | &0.5rt x | @HideWidth @Right
/ | @Below |
}
}
def @AddExtra right x
{
@HContract @VContract
{
/aboveextra |leftextra x |rightextra /belowextra
}
}
def @GraphicSetup right x
{
{
save @Case {
{ yes Yes } @Yield {
"grestore save gsave" totalweight initialangle "lpiebegin"
//
"lpieend restore"
}
{ no No } @Yield {
totalweight initialangle "lpiebegin"
//
"lpieend"
}
}
} @Graphic x
}
def @Base right x
{
def @Square { radius @Wide radius @High {} }
@HContract @VContract {
@Square ^| @Square
^/
@Square | @Square
/
x
}
}
@AddCaptions @AddExtra @GraphicSetup @Base @Body
}
}
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