Re: Drawing 25 000 Shape fast

i have to render 25 000 "points" with each one a specific fill color, and
a specific Shape (java.awt.Shape or customized) in a JPanel.

Drawing every Shape, one by one, is too slow (panning the view ins't
smooth). So i tried to create a BufferedImage for each point, and render
them instead. But it is even slower.

Direct : 3 sec
BI: 4.5 sec

I need to reach 0.1 sec by any mean. Right now i'm thinking to add some
kind of Z-buffer but with aliasing it's pretty hard i think. Trying ideas
take time so i'm asking if somebody can help me.

And all the BI take about 60 Mbytes of memory, which is a lot.

use one BufferedImage.
You need to draw your shapes to BI only if something changes.

Andrey

--
http://uio.imagero.com Unified I/O for Java
http://reader.imagero.com Java image reader
http://jgui.imagero.com Java GUI components and utilities


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