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Index › Programming Questions & Help › Programs › Simple Paint Program (Beginner question)
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Simple Paint Program (Beginner question) (Read 2065 times)
g8rjosh
Simple Paint Program (Beginner question)
Sep 14th, 2007, 8:33pm  
I am new to processing and I have a very basic understanding of programming in java.

I am looking for reference or examples for how to draw straight lines using mouse input. I have done tests with mouseX, mouseY, etc, in the line command, but because these values are updated every frame I dont get a straight line, I get a free hand line tool. I somehow need to take the value of the x and y on the initial mousePressed, and the final x and y on mouse released. Anyone have any references that I should look into? I would greatly appreciate any help. Thanks!

Joshua
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st33d
Re: Simple Paint Program (Beginner question)
Reply #1 - Sep 15th, 2007, 11:28am  
like this?
Code:

float x,y;
void setup(){
  size(400, 400);
}
void draw(){
}
void mousePressed(){
  x = mouseX;
  y = mouseY;
}
void mouseReleased(){
  line(x,y,mouseX,mouseY);
}


or do you mean like the continous lines demo in the learning section
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g8rjosh
Re: Simple Paint Program (Beginner question)
Reply #2 - Sep 17th, 2007, 3:58am  
I think my problem is that I was trying to do this in the draw  function...

Thanks. Now, trying to give you a preview of the line before you let go... :p
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