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Index › Programming Questions & Help › Syntax Questions › How to delete a shape
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How to delete a shape? (Read 833 times)
TJLahr
How to delete a shape?
Nov 27th, 2009, 6:57pm  
I'm new to Processing and am curious as to how you delete a shape once you've created it...

For example, say I have this simple loop in draw():

for(i  = 0; i < 10; i ++) {
   ellipse(random(100), random(100), 50, 50);
}

How would I delete the ellipse after it's created so that I only see one on the canvas at any given time?

Thanks in advance.

T
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Cedric
Re: How to delete a shape?
Reply #1 - Nov 27th, 2009, 7:10pm  
there is nothing like deleting... think of it as a canvas where you draw something. if you dont want it anymore. draw something above it...
but in this case it doesnt work because what you see on the screen is everything that happens during one draw loop. so if you draw some ellipses in a for loop you will always see all of them.
for what you want, move the ellipse outside the for loop and simply put it in your draw. call background at the beginning of draw to clear the screen.
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TJLahr
Re: How to delete a shape?
Reply #2 - Nov 27th, 2009, 7:35pm  
Thank you. This helps a lot.

T
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