A python implementation of a "sparkline" graph generating web service. Any web page can specify a URL containing graph data, and obtain the corresponding graphic for display on the HTML page.
In March 2006, Sun Microsystems generously provided me with a new Sunfire T2000 server for testing. Like many others, I wondered about the best way to present the test results data. That is how I stumbled upon the idea of "sparkline" graphs.
After locating an interesting Python SVG generator implementation by Rick Muller, and another non-SVG Python sparkline graph CGI web service by Joe Gregario, I set about writing my own. I wanted a Python-based CGI web service capable of serving up sparkline graphs in any image format (including SVG).
The source code for svggraph.py (and related resource material) is in http://kundert.ca/~perry/sparkline/. You can access the web service (hosted presently on the above-mention Sunfire T2000!), via URLs like http://kundert.ca/sparc?y=blue:1,2,9,0,-1,7,5,8&min=red&max=green&format=png:
Call with no options (just a ?) to get a listing of the available URL options: http://kundert.ca/sparc?