This app generates a PNG sprite with sparkline graphs. In certain situations, a server-side sprite will outperform browser-generated sparklines that use SVG or canvas.
Examples using random data are below, and you would implement your own sparklines by interfacing with SparklineGenerator.createPNG() and passing your data and options to it.
https://demo.anthum.com/sparkline.png?bg=cccccc&total=10
https://demo.anthum.com/sparkline.png?bg=cccccc&total=11
https://demo.anthum.com/sparkline.png?bg=cccccc&total=100
* Background color specified because it's transparent otherwise (barely visible in latest Chrome)
https://demo.anthum.com/sparkline.png?color=aa0000
https://demo.anthum.com/sparkline.png?color=333333&bg=eaeaea
Fill is experimental and is not pixel perfect. You'll see overflows over boundaries, but feel free to play with it
https://demo.anthum.com/sparkline.png?color=333333&bg=eaeaea&fill=aaaaaa
https://demo.anthum.com/sparkline.png?color=ff0000&bg=000000&fill=666666
Add id parameter to use consistent/predictible randomness when testing color options.
https://demo.anthum.com/sparkline.png?id=1&color=333333
https://demo.anthum.com/sparkline.png?id=1&color=aaaaaa
