- Processing
- p5.js
- Processing.py
- Processing for Android

- Processing Foundation

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 | ### pixelWidth
Examples |
    size(600, 400);
    pixelDensity(2);
    println(width, height);
    println(pixelWidth, pixelHeight);
Description | When pixelDensity(2) is used to make use of a high resolution display (called a Retina display on OS X or high-dpi on Windows and Linux), the width and height of the sketch do not change, but the number of pixels is doubled. As a result, all operations that use pixels (like loadPixels(), get(), set(), etc.) happen in this doubled space. As a convenience, the variables pixelWidth and pixelHeight hold the actual width and height of the sketch in pixels. This is useful for any sketch that uses the pixels[] array, for instance, because the number of elements in the array will be pixelWidth*pixelHeight, not width*height.
Related | pixelHeight pixelDensity() displayDensity()

Updated on November 10, 2017 05:36:30pm EST