This reference is for Processing 2.0+. If you have a previous version, use the reference included with your software. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Javadoc.

Name | ### pushMatrix()
Examples |
    fill(255);
    rect(0, 0, 50, 50);  // White rectangle

    pushMatrix();
    translate(30, 20);
    fill(0);
    rect(0, 0, 50, 50);  // Black rectangle
    popMatrix();

    fill(100);
    rect(15, 10, 50, 50);  // Gray rectangle
Description | Pushes the current transformation matrix onto the matrix stack. Understanding pushMatrix() and popMatrix() requires understanding the concept of a matrix stack. The pushMatrix() function saves the current coordinate system to the stack and popMatrix() restores the prior coordinate system. pushMatrix() and popMatrix() are used in conjuction with the other transformation functions and may be embedded to control the scope of the transformations.
Syntax |
    pushMatrix()
Returns | void
Related | popMatrix() translate() rotate() rotateX() rotateY() rotateZ()

Updated on October 26, 2013 08:58:31pm PDT