Re: Graphing With Google Charts API

FROM : Ben Einstein
DATE : Sun Jun 01 16:20:07 2008

I looked into this before. While Google's API is pretty good, it takes 
a bunch of work to customize charts and graphs just the way you want. 
I believe there's also a limit on the number of charts a given user 
can generate, although I can't recall what this number is. After 
playing with all the available options (there aren't many) I chose 
David Addalsteinsson's  DataGraph application/framework.

His tools are very powerful for 2D graphs and  have a boat-load of 
pretty neat features that you'll never get with the Google API 
(cropping, saving, adding points, live data graphing, etc). He has a 
new open-source license and a commercial one for a pretty modest 
price. The biggest advantage is the developer himself; he seems 
extremely eager to add features that user's request and help with 
questions. The biggest disadvantage is it's size, which weighs in 
somewhere around 18mb. Check this out: http://www.visualdatatools.com/DataGraph/

Ben


On May 31, 2008, at 1:29 PM, Jamie Phelps wrote:

> I am writing an application that could seriously benefit from a good 
> graphing API. Of course, the simplest solution to this would be if 
> Apple opened up GraphKit for Cocoa developers. Sadly, that seems not 
> to be in the near future, so I'm looking at alternatives.
>
> While there are some graphing frameworks out there, most of them 
> seem incomplete and/or without a great deal of ongoing development. 
> So, my thought was that Google's relatively new Charts API would be 
> a great way to plug this hole for the time being. Simple URL calls 
> return PNG images that could then be cached.
>
> Other than the obvious need for an internet connection, can anyone 
> see any reason this can't work as a viable solution to the graphing 
> problem in Cocoa?
>
> For reference, here is Google's Charts API page: http://code.google.com/apis/chart/
>
> Jamie
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