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Index › Programming Questions & Help › Syntax Questions › How to use multiple PGraphics objects
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How to use multiple PGraphics objects (Read 365 times)
michael99
How to use multiple PGraphics objects
Apr 5th, 2008, 3:04pm  
Hello

Is there a way to draw on multiple PGraphics canvases simultaneously?

If I define a single PGraphics canvas as follows:

PGraphics canvas = createGraphics(80, 80, P3D);

can I define canvas somehow as an array or list of objects, so that ideally I could use commands such as:

canvas[0].beginDraw();
canvas[0].rect(0,0,2,2);
...
canvas[1].beginDraw();
canvas[1].ellipse(0,0,2,2);
...

If this is possible, then how must I define or initialize canvas?

Also, if one then has several canvases, is there a quick way to copy the contents of one to another?

Thank you very much for your help!

Michael
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eskimoblood
Re: How to use multiple PGraphics objects
Reply #1 - Apr 5th, 2008, 9:42pm  
You can simple create an PGraphics array where you initialize your PGraphics objects in a for loop:

Code:

void setup(){
  size(800,80);
  PGraphics[] canvas = new PGraphics[10]; 
  for(int i=0;i<canvas.length; i++){
    canvas[i]=createGraphics(80, 80, P3D);
  }
  for(int i=0;i<canvas.length; i++){
    canvas[i].beginDraw();
    canvas[i].rect(0,0,2,2);
    canvas[i].endDraw();
    image(canvas[i], 80*i, 0);
  }
}
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Andreas Köberle {eskimoblood}
222550793  
michael99
Re: How to use multiple PGraphics objects
Reply #2 - Apr 6th, 2008, 9:19am  
great! it works! thank you so much....
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