any ruby library that produces a nice “gauge” graph image that doesn't require javascript?
문제
I really like the Google Charts "gauge" graph. I would like to use it in a formatted HTML email however as email doesn't allow javascript I can't do this.
http://code.google.com/apis/chart/interactive/docs/gallery/gauge.html
Any ruby library or alternative approach available that would allow a "gauge" graph of similar high quality as the above-mentioned google one to be produced and used in a formatted html email?
해결책
Google Image Charts has a "gauge" graph.
http://code.google.com/apis/chart/image/docs/chart_wizard.html
It's not quite as slick as the javascript version, but it might do.
다른 팁
There's rchart.
There's gerbilcharts, but you might need to convert from SVG to an image depending on your needs.
There's gruff.
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