A discussion forum for JFreeChart (a 2D chart library for the Java platform).
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martk
Post
by martk » Thu May 15, 2003 2:56 pm
Hi all,
a quickie - when generating PNG/JPG/PDF from a chart, the graph size is supplied in pixels. First of all - how big is a JFreeChart pixel (in mm) ? Secondly - is the size specific to JFreeChart or in any way standardized ?
Thanks in advance
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Taqua
- JFreeReport Project Leader
- Posts: 698
- Joined: Fri Mar 14, 2003 3:34 pm
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Post
by Taqua » Thu May 15, 2003 8:31 pm
Hi,
this is the Java standard way: One pixel is 1/72 inch, the standard graphics resolution in java. All (unscaled) graphics operations work with this resolution.
For printering, a higher resolution is used for printing, all coordinates are transformed to fit the output target.
Have more fun,
said Thomas