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#javascript-processing-example-basic-form-piechart.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>PieChart</h2>
  
  <p>By Ira Greenberg 
  
  Uses the arc() function to generate a pie chart from the data
  stored in an array.</p>
  
  <p><a href="http://processing.org/learning/basics/piechart.html"><b>Original Processing.org Example:</b> PieChart</a><br>
  <script type="application/processing">
  size(200, 200);
  background(100);
  smooth();
  noStroke();
  
  int diameter = 150;
  int[] angs = {30, 10, 45, 35, 60, 38, 75, 67};
  float lastAng = 0;
  
  for (int i=0; i<angs.length; i++){
    fill(angs[i] * 3.0);
    arc(width/2, height/2, diameter, diameter, lastAng, lastAng+radians(angs[i]));
    lastAng += radians(angs[i]);  
  }
  </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>
  size(200, 200);
  background(100);
  smooth();
  noStroke();
  
  int diameter = 150;
  int[] angs = {30, 10, 45, 35, 60, 38, 75, 67};
  float lastAng = 0;
  
  for (int i=0; i&lt;angs.length; i++){
    fill(angs[i] * 3.0);
    arc(width/2, height/2, diameter, diameter, lastAng, lastAng+radians(angs[i]));
    lastAng += radians(angs[i]);  
  }</pre>
  </body></html>
  


(C) Æliens 20/2/2008

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