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Index › Programming Questions & Help › Syntax Questions › circleArray[x] of pixels[i]
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circleArray[x] of pixels[i] (Read 414 times)
ACsef
circleArray[x] of pixels[i]
Nov 18th, 2007, 6:44pm  
I need to get pixels[i] from a picture, but only pixels in a shape of a circle around the mouse (mouseX,mouseY).

If you can imagine, I need to get index of every pixel (in some distance from) around the mouse.

Any help?
Thank you
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extrapixel
Re: circleArray[x] of pixels[i]
Reply #1 - Nov 19th, 2007, 9:05pm  
well, you could simply measure the distance of every pixel to the mouse.
dist(x,y,mouseX,mouseY);
If it's smaller than the radius of your circle, that pixel belongs into the circleArray.

however, I can't think of many cases this would make sense. If you want just something like an ellipse following your mouse, you'll be better off drawing an ellipse at mouse position. what do you want to do?
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ACsef
Re: circleArray[x] of pixels[i]
Reply #2 - Nov 19th, 2007, 10:09pm  
First of all thanx for your reply. I already found the solution. I have many pictures in as many layers. When user drags mouse over picture i have to delete the upper picture and show the picture under that picture. And so on and on and on... that is what I'm doing and have done:)
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