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This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, please let us know. If you prefer a more technical reference, visit the Processing Core Javadoc and Libraries Javadoc.

Name | ### modelX()
Examples |
    void setup() {
      size(500, 500, P3D);
      noFill();
    }

    void draw() {
      background(0);

      pushMatrix();
      // start at the middle of the screen
      translate(width/2, height/2, -200);
      // some random rotation to make things interesting
      rotateY(1.0); //yrot);
      rotateZ(2.0); //zrot);
      // rotate in X a little more each frame
      rotateX(frameCount / 100.0);
      // offset from center
      translate(0, 150, 0);

      // draw a white box outline at (0, 0, 0)
      stroke(255);
      box(50);

      // the box was drawn at (0, 0, 0), store that location
      float x = modelX(0, 0, 0);
      float y = modelY(0, 0, 0);
      float z = modelZ(0, 0, 0);
      // clear out all the transformations
      popMatrix();

      // draw another box at the same (x, y, z) coordinate as the other
      pushMatrix();
      translate(x, y, z);
      stroke(255, 0, 0);
      box(50);
      popMatrix();
    }
Description | Returns the three-dimensional X, Y, Z position in model space. This returns the X value for a given coordinate based on the current set of transformations (scale, rotate, translate, etc.) The X value can be used to place an object in space relative to the location of the original point once the transformations are no longer in use. In the example, the modelX(), modelY(), and modelZ() functions record the location of a box in space after being placed using a series of translate and rotate commands. After popMatrix() is called, those transformations no longer apply, but the (x, y, z) coordinate returned by the model functions is used to place another box in the same location.
Syntax |
    modelX(x, y, z)
Parameters |
x | float: 3D x-coordinate to be mapped
y | float: 3D y-coordinate to be mapped
z | float: 3D z-coordinate to be mapped
Returns | float
Related | modelY() modelZ()

Updated on January 9, 2020 00:33:11pm EST