Is Processing like Opengl, doing Postmultiplication of transformation?
If so,
translate(A);
rotate(B);
translate(C);
rect();

is interpreted as rect is translate(C) followed by rotate(B) which is finally followed by translate(A)?

am i right?

Hi all,
can i ask a noob question?

Are the following code the same?

void draw(){
pushMatrix();
  translate(10,-5);
  rotate(radians(15));
  translate(-10,5);
  rect(0,0,10,10);
popMatrix();
}


void draw(){
  translate(10,-5);
  rotate(radians(15));
  translate(-10,5);
  rect(0,0,10,10);
}

and if they are the same, can i ask which order is processing doing?
is it:
1. translate(-10,5);  2. rotate(radians(15));   3. translate(10,-5);   4. rect(0,0,10,10);

I am trying to implement a mouseDragged function such that the user can MOVE the image in either X axis or Y axis, depending on the direction the user drags the mouse.

However, due to the nature of mouseDragged Function, it is almost impossible to check whether the user is dragging in X or Y axis...
Can anyone advice me how to drag the image in a direction (X or Y) and not in both direction...

I have the following code:

1. void mouseReleased(){{
2.       if(mouseButton == LEFT) {
3.             if (key == CODED){
4.                     if(keyCode == ALT)
5.                         // DO A
6.             }
7.      }
8. }

What i wish to do is to detect such that when user mouse Left click with and ALT key pressed, the program will do A.
But i realised that when the ALT key has been released, when the user Left Click, the program still do A, which is not what i want.

Any advice?

Is there a way to know where the Directory of the current project?
Is there a CONSTANT for it?