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
|
$:.unshift(File.dirname(__FILE__)+"/../../lib")
require 'rubyvis'
# Sizing and scales. */
data = pv.range(10).map {rand()}
w = 400
h = 400
r = w / 2.0
a = pv.Scale.linear(0, pv.sum(data)).range(0, 2 * Math::PI)
#/* The root panel. */
vis = pv.Panel.new()
.width(w)
.height(h);
#/* The wedge, with centered label. */
vis.add(pv.Wedge)
.data(data.sort(&pv.reverse_order))
.bottom(w / 2.0)
.left(w / 2.0)
.innerRadius(r - 40)
.outerRadius(r)
.angle(a)
.event("mouseover", lambda {self.inner_radius(0)})
.event("mouseout", lambda{ self.inner_radius(r - 40)})
.anchor("center").add(pv.Label)
.visible(lambda {|d| d > 0.15})
.textAngle(0)
.text(lambda {|d| "%0.2f" % d});
vis.render();
puts vis.to_svg
|
