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Index › Programming Questions & Help › Programs › Image Creating: Is this the right way
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Image Creating: Is this the right way? (Read 328 times)
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Image Creating: Is this the right way?
Apr 6th, 2006, 6:42pm  
I have a model which draws a lot of lines (6,400 of them).  They don't move during the draw() frames, so I thought maybe I should just capture the display after I first draw them, then use image() in the draw() routine.

After a bit of experiment, I found the attached worked.  But I didn't find a code segment showing this so am wondering if this is really the right way to do it.  Is this reasonable, or is there a better way to do it?  I did need to copy the bits, for example, but was a bit puzzled as to why.

Thanks

Quote:
void setup() {
   ...
 // stunt: capture the lines as an image
 background(128);
 for(int i = 0; i<lines.size(); i++) {
   ((Line)lines.get(i)).paint();
 }
 loadPixels();
 imgpixels = new int[pixels.length];
 arraycopy(pixels,imgpixels);
 img = new PImage(imgpixels, width, height, RGB);
}
void draw() {
 image(img,0,0);
   ...
}
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