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# = Icicle
# An icicle is simply a sunburst transformed from polar to cartesian coordinates. Here we show the various files on Rubyvis package; the color of each cell corresponds to the package, while the area encodes the size of the source code in bytes
# Uses Protovis API
$:.unshift(File.dirname(__FILE__)+"/../../lib")
require 'rubyvis'
def get_files(path)
h={}
Dir.glob("#{path}/*").each {|e|
next if File.expand_path(e)=~/pkg|web|vendor|doc|~/
pa=File.expand_path(e)
if File.stat(pa).directory?
h[File.basename(pa)]=get_files(pa)
else
h[File.basename(pa)]=File.stat(pa).size
end
}
h
end
files=get_files(File.expand_path(File.dirname(__FILE__)+"/../../lib/"))
colors=Rubyvis::Colors.category19
vis = Rubyvis::Panel.new.
width(600).
height(500).
bottom(30)
layout = vis.add(Rubyvis::Layout::Partition::Fill).
nodes(Rubyvis.dom(files).root("rubyvis").nodes)
layout.order("descending")
layout.orient("top")
layout.size(lambda {|d| d.node_value})
layout.node.add(pv.Bar).
fill_style( lambda {|d|
colors.scale(d.parent_node ? d.parent_node.node_name : '')}
).
stroke_style("rgba(255,255,255,.5)").
line_width(1).
antialias(false)
layout.node_label.add(pv.Label)
.text_angle(-Math::PI / 2.0)
.visible(lambda {|d| d.dx >6 })
vis.render()
puts vis.to_svg
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