Reference for Processing version 1.5. 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 | ### . (dot)
Examples |
    // Declare and contruct two objects (h1, h2) from the class HLine
    HLine h1 = new HLine(20, 1.0);
    HLine h2 = new HLine(50, 5.0);

    void setup() {
      size(200, 200);
    }

    void draw() {
      if(h2.speed > 1.0) {
        h2.speed -= 0.01;
      }
      h1.update();
      h2.update();
    }

    class HLine {
      float ypos, speed;
      HLine (float y, float s) {
        ypos = y;
        speed = s;
      }
      void update() {
        ypos += speed;
        if (ypos > width) {
          ypos = 0;
        }
        line(0, ypos, width, ypos);
      }
    }
Description | Provides access to an object's methods and data. An object is an instance of a class and contains is a grouping of methods (object functions) and data (object variables and constants). The dot operator directs the program to the information encapsulated within an object.
Syntax |
    object.method()object.data
Parameters |
object | the object you want to access
method() | method encapsulated in the object
data | variable or constant encapsulated in the object
Usage | Web & Application
Related | Object

Updated on August 30, 2010 04:29:39pm EDT