1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
var WIDTH = 960,
HEIGHT = 500,
MARGIN = 14, // space in between <rects>
PADDING = 5, // space in between <text> label and <rect> border
EDGE_ROUTING_MARGIN = 3;
var color = d3.scale.category20();
var d3cola = cola.d3adaptor()
.avoidOverlaps(true)
.size([WIDTH, HEIGHT]);
var svg, fg;
jQuery(function () {
draw_graph();
});
function redraw_on_zoom () {
fg.attr("transform",
"translate(" + d3.event.translate + ")" +
" scale(" + d3.event.scale + ")");
}
function draw_graph () {
svg = d3.select("body").append("svg")
.attr("width", WIDTH)
.attr("height", HEIGHT);
svg.append('rect')
.attr('class', 'background')
.attr('width', "100%")
.attr('height', "100%")
.call(d3.behavior.zoom().on("zoom", redraw_on_zoom));
fg = svg.append('g');
d3.json("test.json", function (error, graph) {
d3cola
.nodes(graph.nodes)
.links(graph.links)
.flowLayout("y", 150)
.symmetricDiffLinkLengths(30);
//.jaccardLinkLengths(100);
// define arrow markers for graph links
fg.append('svg:defs').append('svg:marker')
.attr('id', 'end-arrow')
.attr('viewBox', '0 -5 10 10')
.attr('refX', 6)
.attr('markerWidth', 8)
.attr('markerHeight', 8)
.attr('orient', 'auto')
.append('svg:path')
.attr('d', 'M0,-5L10,0L0,5')
.attr('fill', '#000');
var path = fg.selectAll(".link")
.data(graph.links)
.enter().append('svg:path')
.attr('class', 'link');
var node = fg.selectAll(".node")
.data(graph.nodes)
.enter().append("g")
.attr("class", "node")
.call(d3cola.drag);
// Initialize tooltip
var tip = d3.tip().attr('class', 'd3-tip').html(tip_html);
fg.call(tip);
// Hide tooltip when we start dragging
d3cola.drag().on('dragstart', tip.hide);
var rect = node.append("rect")
.attr("rx", 5).attr("ry", 5);
var label = node.append("text")
.text(function (d) { return d.name; })
.each(function (d) {
var b = this.getBBox();
// Calculate width/height of rectangle from text bounding box.
d.rect_width = b.width + 2 * PADDING;
d.rect_height = b.height + 2 * PADDING;
// Now set the node width/height as used by cola for
// positioning. This has to include the margin
// outside the rectangle.
d.width = d.rect_width + 2 * MARGIN;
d.height = d.rect_height + 2 * MARGIN;
});
// label.append("title")
// .text(function (d) { return d.name; });
rect.attr('width', function (d, i) { return d.rect_width; })
.attr('height', function (d, i) { return d.rect_height; })
.on('mouseover', tip.show)
.on('mouseout', tip.hide);
// Centre label
label
.attr("x", function (d) { return d.rect_width / 2; })
.attr("y", function (d) { return d.rect_height / 2; })
.on('mouseover', tip.show)
.on('mouseout', tip.hide);
d3cola.start(10,20,20);
d3cola.on("tick", function () {
node.each(function (d) {
// cola sets the bounds property which is a Rectangle
// representing the space which other nodes should not
// overlap. The innerBounds property seems to tell
// cola the Rectangle which is the visible part of the
// node, minus any blank margin.
d.innerBounds = d.bounds.inflate(-MARGIN);
});
node.attr("transform", function (d) {
return "translate(" +
d.innerBounds.x + "," +
d.innerBounds.y + ")";
});
path.each(function (d) {
if (isIE()) this.parentNode.insertBefore(this, this);
});
path.attr("d", function (d) {
// Undocumented: https://github.com/tgdwyer/WebCola/issues/52
cola.vpsc.makeEdgeBetween(
d,
d.source.innerBounds,
d.target.innerBounds,
// This value is related to but not equal to the
// distance of arrow tip from object it points at:
5
);
var lineData = [
{ x: d.sourceIntersection.x, y: d.sourceIntersection.y },
{ x: d.arrowStart.x, y: d.arrowStart.y }
];
return lineFunction(lineData);
});
});
// d3cola.on("end", routeEdges);
// turn on overlap avoidance after first convergence
// d3cola.on("end", function () {
// if (!d3cola.avoidOverlaps()) {
// graph.nodes.forEach(function (v) {
// v.width = v.height = 10;
// });
// d3cola.avoidOverlaps(true);
// d3cola.start();
// }
// });
});
}
function tip_html (d) {
return d.describe || d.sha;
}
var lineFunction = d3.svg.line()
.x(function (d) { return d.x; })
.y(function (d) { return d.y; })
.interpolate("linear");
var routeEdges = function () {
d3cola.prepareEdgeRouting(EDGE_ROUTING_MARGIN);
path.attr("d", function (d) {
return lineFunction(d3cola.routeEdge(d)
// // show visibility graph
//, function (g) {
// if (d.source.id === 10 && d.target.id === 11) {
// g.E.forEach(function (e) {
// vis.append("line").attr("x1", e.source.p.x).attr("y1", e.source.p.y)
// .attr("x2", e.target.p.x).attr("y2", e.target.p.y)
// .attr("stroke", "green");
// });
// }
// }));
);
});
if (isIE()) {
path.each(function (d) {
this.parentNode.insertBefore(this, this);
});
}
};
function isIE () {
return (navigator.appName == 'Microsoft Internet Explorer') ||
((navigator.appName == 'Netscape') &&
(new RegExp("Trident/.*rv:([0-9]{1,}[\.0-9]{0,})").exec(navigator.userAgent)
!= null));
}
|
