How to produce chart picture in memory instead of save it

[xtsu]

Hi, All
I have a question about how to produce chart picture as a java object in memory instead of saving it in harddisk.
Would you give a short example?

Thanks a lot!

[reboot]

If u look at the Jfrechart API, at the ChartUtilities class. U can use write mothods passing into the write mothod a new OutPutStream() and taking back from it the byte[]. After that u can do what u want....

i suppose

[MitchBuell]

The JFreeChart object has a few methods for creating a BufferedImage of itself. Here's the simplest method:

Code: Select all

JFreeChart chart = createMyChart();
BufferedImage image = chart.createBufferedImage(int width, int height)