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| The Processing 1.0 _ALPHA_ Reference is a work in progress. If you see any errors or have any comments, please write to: reas at groupc.net

Name |  | ### screenY()
Examples |  |
    void loop() {
      float x = mouseX;
      float y = mouseY;
      float z = -100;

      // temporary kludge to kick P5 into 3D drawing
      translate(0, 0, 0);

      stroke(0);
      float theY = screenY(x, y, z);
      // Draw 2D line to match 3D position
      line(0, theY, width, theY);

      stroke(255);
      // Draw line in 3D
      line(x-10, y, z, x+10, y, z);

      // Draw line in 2D as comparison
      line(0, y, width, y);
    }
Description |  | Takes a three-dimensional X, Y, Z position and returns the Y value for where it will appear on a (two-dimensional) screen.
Syntax |  |
    var = screenY(x, y, z)
Parameters |  |
var |  | float: any legal variable name
x |  | int or float: 3D x coordinate to be mapped
y |  | int or float: 3D y coordinate to be mapped
z |  | int or float: 3D z coordinate to be mapped
Returns |  | float
Usage |  | Web & Application
Related |  | screenX() screenZ()

| © 2004 - 2001 Massachusetts Institute of Technology and Interaction Design Institute Ivrea |
| Processing is an open project initiated by Ben Fry and Casey Reas |