source: django_apps/running/static/year-total.js@ 348

Last change on this file since 348 was 301, checked in by Rick van der Zwet, 14 years ago
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File size: 3.0 KB
Line 
1function yearTotalGraph(data, binder) {
2 if (data.length == 0) {
3 return;
4 }
5 var start = data[0].x;
6 var end = data[data.length - 1].x;
7
8 /* Scales and sizing. */
9 var w = 810,
10 h1 = 300,
11 h2 = 30,
12 x = pv.Scale.linear(start, end).range(0, w),
13 y = pv.Scale.linear(0, pv.max(data, function(d) d.y)).range(0, h2);
14
15 /* Interaction state. Focus scales will have domain set on-render. */
16 var i = {x:0, dx:w},
17 fx = pv.Scale.linear().range(0, w),
18 fy = pv.Scale.linear().range(0, h1);
19
20 /* Root panel. */
21 var vis = new pv.Panel().canvas(binder)
22 .width(w)
23 .height(h1 + 20 + h2)
24 .bottom(20)
25 .left(30)
26 .right(20)
27 .top(5);
28
29 /* Focus panel (zoomed in). */
30 var focus = vis.add(pv.Panel)
31 .def("init", function() {
32 var d1 = x.invert(i.x),
33 d2 = x.invert(i.x + i.dx),
34 dd = data.slice(
35 Math.max(0, pv.search.index(data, d1, function(d) d.x) - 1),
36 pv.search.index(data, d2, function(d) d.x) + 1);
37 fx.domain(d1, d2);
38 fy.domain(scale.checked ? [0, pv.max(dd, function(d) d.y) * 1.1] : y.domain());
39 return dd;
40 })
41 .top(0)
42 .height(h1);
43
44 /* X-axis ticks. */
45 focus.add(pv.Rule)
46 .data(function() fx.ticks())
47 .left(fx)
48 .strokeStyle("#eee")
49 .anchor("bottom").add(pv.Label)
50 .text(fx.tickFormat);
51
52 /* Y-axis ticks. */
53 focus.add(pv.Rule)
54 .data(function() fy.ticks(7))
55 .bottom(fy)
56 .strokeStyle(function(d) d ? "#aaa" : "#000")
57 .anchor("left").add(pv.Label)
58 .text(fy.tickFormat);
59
60 /* Focus area chart. */
61 focus.add(pv.Panel)
62 .overflow("hidden")
63 .add(pv.Area)
64 .data(function() focus.init())
65 .left(function(d) fx(d.x))
66 .bottom(1)
67 .height(function(d) fy(d.y))
68 .fillStyle("lightsteelblue")
69 .anchor("top").add(pv.Line)
70 .fillStyle(null)
71 .strokeStyle("steelblue")
72 .lineWidth(2);
73
74 /* Context panel (zoomed out). */
75 var context = vis.add(pv.Panel)
76 .bottom(0)
77 .height(h2);
78
79 /* X-axis ticks. */
80 context.add(pv.Rule)
81 .data(x.ticks())
82 .left(x)
83 .strokeStyle("#eee")
84 .anchor("bottom").add(pv.Label)
85 .text(x.tickFormat);
86
87 /* Y-axis ticks. */
88 context.add(pv.Rule)
89 .bottom(0);
90
91 /* Context area chart. */
92 context.add(pv.Area)
93 .data(data)
94 .left(function(d) x(d.x))
95 .bottom(1)
96 .height(function(d) y(d.y))
97 .fillStyle("lightsteelblue")
98 .anchor("top").add(pv.Line)
99 .strokeStyle("steelblue")
100 .lineWidth(2);
101
102 /* The selectable, draggable focus region. */
103 context.add(pv.Panel)
104 .data([i])
105 .cursor("crosshair")
106 .events("all")
107 .event("mousedown", pv.Behavior.select())
108 .event("select", focus)
109 .add(pv.Bar)
110 .left(function(d) d.x)
111 .width(function(d) d.dx)
112 .fillStyle("rgba(255, 128, 128, .4)")
113 .cursor("move")
114 .event("mousedown", pv.Behavior.drag())
115 .event("drag", focus);
116
117 vis.render();
118}
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