A change of chart?
Hilary Spencer
Monday, 10 December 2007 15:51 UTC
Google has just introduced a charting API, which lets one dynamically generate chart images. The API seems fairly flexible, although they suggest that one should “take care not to overestimate the number of data points required for a chart”.
Current chart styles supported include:
- Line chart
- Scatter plot
- Bar chart
- Venn diagram
- Pie chart
The folks over at Swivel are also working on an API although access is not open yet.
If you need to draw more complicated charts than the APIs will allow, I’ve been having some success with the Pear::Image_Graph library in PHP. I know some other PHP developers who use JpGraph.
Updated 10 December 2007 15:58 UTC
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Replies
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Many Eyes is a very cool viz service as well.
What I’m waiting for is really scalable network viz tools. I see lots of cool ones but none that think about how to deal with really big graphs – 1,000,000,000 relationships and up. It might not be a visual interface at that scale but someone’s got to figure out how scientists can deal with all the relationships baked into the 1000+ databases out there for life sciences.
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