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#javascript-processing-example-basic-structure-noloop.htm / htm



  <!DOCTYPE html>
  <html><head>
  <script src="javascript-processing-example-processing.js"></script>
  <script src="javascript-processing-example-init.js"></script>
  <link rel="stylesheet" href="javascript-processing-example-style.css">
  </head><body><h1><a href="http://ejohn.org/blog/processingjs/">Processing.js</a></h1>
  <h2>NoLoop</h2>
  
  <p>The noLoop() function causes draw() to only
  execute once. Without calling noLoop(), draw()
  executed continually.</p>
  
  <p><a href="http://processing.org/learning/basics/noloop.html"><b>Original Processing.org Example:</b> NoLoop</a><br>
  <script type="application/processing">
  // 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);
    noLoop();
  }
  
  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);  
  }
  </script><canvas width="200" height="200"></canvas></p>
  <div style="overflow: hidden; height: 0px; width: 0px;"></div>
  
  <pre><b>// All Examples Written by <a href="http://reas.com/">Casey Reas</a> and <a href="http://benfry.com/">Ben Fry</a>
  // unless otherwise stated.</b>
  // 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);
    noLoop();
  }
  
  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 &lt; 0) { y = height; } 
    line(0, y, width, y);  
  }</pre>
  </body></html>
  


(C) Æliens 20/2/2008

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