Examples
Several based on Protovis gallery
Ruby port of Protovis library According to the protovis site
Protovis composes custom views of data with simple marks such as bars and dots. Unlike low-level graphics libraries that quickly become tedious for visualization, Protovis defines marks through dynamic properties that encode data, allowing inheritance, scales and layouts to simplify construction.
As Protovis, Rubyvis is free and open-source, provided under the BSD License. Its delivers SVG natively, which could be exported to PNG, JPEG and others graphics formats
Current Version: 0.7.0
Protovis API Version: 3.3
https://github.com/clbustos/rubyvis
gem install rubyvis
require 'rubygems'
require 'rubyvis'
vis = Rubyvis::Panel.new do
width 150
height 150
bar do
data [1, 1.2, 1.7, 1.5, 0.7, 0.3]
width 20
height {|d| d * 80}
bottom(0)
left {index * 25}
end
end
vis.render()
puts vis.to_svg # Output final SVG
<svg fill="none" font-family="sans-serif" font-size="10px" height="150.0" stroke="none" stroke-width="1.5" width="150.0"> <g transform="translate(0.0,0.0)"> <rect fill="rgb(31,119,180)" height="80" width="20" y="70"/> <rect fill="rgb(31,119,180)" height="96.0" width="20" x="25" y="54.0"/> <rect fill="rgb(31,119,180)" height="136.0" width="20" x="50" y="14.0"/> <rect fill="rgb(31,119,180)" height="120.0" width="20" x="75" y="30.0"/> <rect fill="rgb(31,119,180)" height="56.0" width="20" x="100" y="94.0"/> <rect fill="rgb(31,119,180)" height="24.0" width="20" x="125" y="126.0"/> </g> </svg>
