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
|
/*
* $Id: piechart.js,v 1.7.2.3 2010/04/06 16:46:12 source Exp $
*
* This file is part of the OpenLink Software Ajax Toolkit (OAT) project.
*
* Copyright (C) 2005-2010 OpenLink Software
*
* See LICENSE file for details.
*/
/*
o = new OAT.PieChart(div,optObj)
o.attachData(arr)
o.attachText(arr)
o.attachColors(arr)
o.draw()
*/
OAT.PieChart = function(div,optObj) {
var self = this;
this.div = $(div);
this.options = {
radius:0, /* = auto */
depth:30,
width:0, /* = auto */
height:0, /* = auto */
legend:1,
ycoef:0.7,
left:30,
top:40
};
/* compute automatic radius */
if (!this.options.radius) {
var h = self.options.height;
if (!h) { h = OAT.Dom.getWH(self.div)[1]; }
this.options.radius = (h - 2*self.options.top - self.options.depth) / (2*self.options.ycoef);
}
for (var p in optObj) { this.options[p] = optObj[p]; }
this.data = [];
this.text = [];
this.colors = ["rgb(153,153,255)","rgb(153,51,205)","rgb(255,255,204)","rgb(204,255,255)","rgb(102,0,102)",
"rgb(255,128,128)","rgb(0,102,204)","rgb(204,204,255)","rgb(0,0,128)","rgb(255,0,255)",
"rgb(0,255,255)","rgb(255,255,0)"];
this.attachData = function(dataArr) { self.data = dataArr; }
this.attachColors = function(colorArr) { self.colors = colorArr; }
this.attachText = function(textArr) { self.text = textArr; }
this.drawPie = function(svgNode,value,total,start_angle,cx,cy,color,phase) {
/* compute important data */
var ycoef = self.options.ycoef;
var r = self.options.radius;
var x1 = r * Math.cos(start_angle) + cx;
var y1 = ycoef * r * Math.sin(start_angle) + cy;
var angle = parseFloat(value) / total * 2 * Math.PI;
var end_angle = start_angle + angle;
var x2 = r * Math.cos(end_angle) + cx;
var y2 = ycoef * r * Math.sin(end_angle) + cy;
var large = (angle >= Math.PI ? 1 : 0);
switch (phase) {
case 0: /* top part */
if (value == total) { /* ellipse mode */
var pElm = OAT.SVG.element("ellipse",{stroke:"#000",fill:color,cx:cx,cy:cy,rx:r,ry:r*ycoef});
} else {
var path = "M "+cx+" "+cy+" L "+x1+" "+y1+" ";
path += "A "+r+" "+r*(ycoef)+" 0 "+large+" 1 "+x2+" "+y2+" ";
path += "L "+cx+" "+cy+" z";
var pElm = OAT.SVG.element("path",{"d":path,stroke:"#000",fill:color});
}
svgNode.appendChild(pElm);
var mid_angle = (start_angle + end_angle) / 2;
var x3 = (r+25) * Math.cos(mid_angle) + cx;
var y3 = (r+25) * ycoef * Math.sin(mid_angle) + cy + 5;
y3 += (mid_angle % (2*Math.PI) < Math.PI ? self.options.depth : 0);
var textElm = OAT.SVG.element("text",{color:"#000",x:x3,y:y3,"text-anchor":"middle"});
textElm.textContent = value;
svgNode.appendChild(textElm);
break;
case 1: /* lower part */
if (value == total) { /* ellipse mode */
var pElm = OAT.SVG.element("ellipse",{stroke:"#000",fill:color,cx:cx,cy:cy,rx:r,ry:r*ycoef});
} else {
var path = "M "+cx+" "+cy+" L "+x1+" "+y1+" ";
path += "A "+r+" "+(r*ycoef)+" 0 "+large+" 1 "+x2+" "+y2+" ";
path += "L "+cx+" "+cy+" z";
var pElm = OAT.SVG.element("path",{"d":path,stroke:"#000",fill:color});
}
svgNode.appendChild(pElm);
break;
case 2: /* middle part */
var d = self.options.depth;
/* hack */
if (value == total) {
x1 = cx + r;
x2 = cx - r;
y1 = cy;
y2 = cy;
}
if (y1 < cy && y2 < cy) {
y1 = cy;
y2 = cy;
x1 = cx - r;
x2 = cx - r;
}
if (y1 < cy) {
y1 = cy;
x1 = cx + r;
large = 0;
}
if (y2 < cy) {
y2 = cy;
x2 = cx - r;
large = 0;
}
var path = "M "+x1+" "+y1+" L "+x1+" "+(y1-d)+" ";
path += "A "+r*1+" "+(r*ycoef)+" 0 "+large+" 1 "+x2+" "+(y2-d)+" ";
path += "L "+x2+" "+y2+" ";
path += "A "+r+" "+(r*ycoef)+" 0 "+large+" 0 "+x1+" "+y1+" ";
/* lighter color */
var c = OAT.Dom.color(color);
var newr = c[0] + 20; if (newr > 255) { newr = 255; }
var newg = c[1] + 20; if (newg > 255) { newg = 255; }
var newb = c[2] + 20; if (newb > 255) { newb = 255; }
var pElm = OAT.SVG.element("path",{"d":path,stroke:"#000",fill:"rgb("+newr+","+newg+","+newb+")"});
svgNode.appendChild(pElm);
break;
}
return end_angle;
}
this.draw = function() {
var w = self.options.width ? self.options.width : "100%";
var h = self.options.height ? self.options.height : "100%";
var svg = OAT.SVG.canvas(w,h);
var group = OAT.SVG.element("g",{transform:"scale(1,1)"});
svg.appendChild(group);
self.div.appendChild(svg);
var total = 0;
for (var i=0;i<self.data.length;i++) { total += parseFloat(self.data[i]); }
var r = self.options.radius;
var cx = r+self.options.left;
var cy = r * self.options.ycoef + self.options.top;
var angle = 2*Math.PI - Math.PI/2;
if (self.options.depth) {
for (var i=0;i<self.data.length;i++) { /* lower part */
var v = self.data[i];
var color = self.colors[i % self.colors.length];
angle = self.drawPie(group,v,total,angle,cx,cy+self.options.depth,color,1);
} /* for all data */
for (var i=0;i<self.data.length;i++) { /* middle part */
var v = self.data[i];
var color = self.colors[i % self.colors.length];
angle = self.drawPie(group,v,total,angle,cx,cy+self.options.depth,color,2);
} /* for all data */
}
for (var i=0;i<self.data.length;i++) { /* top part */
var v = self.data[i];
var color = self.colors[i % self.colors.length];
angle = self.drawPie(group,v,total,angle,cx,cy,color,0);
/* legend */
if (self.options.legend) {
var rect = OAT.SVG.element("rect",{width:25,height:25,x:2*self.options.radius+70+self.options.left,y:i*35+20,fill:color,stroke:"#000"});
svg.appendChild(rect);
var text = OAT.SVG.element("text",{x:2*self.options.radius+100+self.options.left,y:i*35+35,color:"#000"});
text.textContent = self.text[i];
svg.appendChild(text);
}
} /* for all data */
} /* draw */
} /* OAT.PieChart() */
|
