What type of chart? Uses Red and Green Boxes, etc

Discussion about JFreeChart related to stockmarket charts.
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ttennebkram2

What type of chart? Uses Red and Green Boxes, etc

Post by ttennebkram2 » Mon Aug 15, 2005 5:51 pm

I think the area of the box shows volume, and the color/intensity shows the price change.

They use something like it (though maybe fancier) at:
http://www.smartmoney.com/marketmap/

I wanted to do something like this for non-financial data.

Thanks,
Mark

develop
Posts: 296
Joined: Wed Mar 23, 2005 10:01 pm

Post by develop » Sat Sep 03, 2005 11:09 pm

To Draw such graph. there is some algorithm that you need to follow.

its possible with java itself. you dont need any special software.

for algorithm in detail follow this site.

ftp://ftp.cs.umd.edu/pub/hcil/Reports-A ... 001-06.htm

also there are some open source software which have implemented this already.

http://www.devx.com/xml/Article/17361/0/page/2

i use JtreeMap which is french, but very easy to read, and it makes graph from plain xml file. above link has some explanation about that.

Jense
Posts: 3
Joined: Fri Oct 28, 2005 5:00 pm

Post by Jense » Thu Jan 19, 2006 2:30 pm

You now have a beta release of JTreeMap here :
http://jtreemap.sourceforge.net

You can use the TM3 file format explain here :
http://www.cs.umd.edu/hcil/treemap/

Or an XML file format (an sample exists in the .jar)

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