a port of the Processing Visualization Language

SetupDraw

The draw() function creates a structure in which to write programs that change with time.

Original Processing.org Example: SetupDraw

// All Examples Written by Casey Reas and Ben Fry

// unless otherwise stated.

// The statements in the setup() function 

// execute once when the program begins

void setup() 

{

  size(200, 200);  // Size should be the first statement

  stroke(255);     // Set line drawing color to white

  frameRate(30);

}



float y = 100;



// The statements in draw() are executed until the 

// program is stopped. Each statement is executed in 

// sequence and after the last line is read, the first 

// line is executed again.

void draw() 

{ 

  background(0);   // Set the background to black

  y = y - 1; 

  if (y < 0) { y = height; } 

  line(0, y, width, y);  

}
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