topical media & game development

topical media & game development

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

#javascript-processing-example-basic-structure-coordinates.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>Coordinates</h2>
  
  <p>All shapes drawn to the screen have a position that is specified as a coordinate.
  All coordinates are measured as the distance from the origin in units of pixels.
  The origin [0, 0] is the coordinate is in the upper left of the window
  and the coordinate in the lower right is [width-1, height-1].</p>
  
  <p><a href="http://processing.org/learning/basics/coordinates.html"><b>Original Processing.org Example:</b> Coordinates</a><br>
  <script type="application/processing">
  // Sets the screen to be 200, 200, so the width of the window is 200 pixels
  // and the height of the window is 200 pixels
  size(200, 200);
  background(0);
  noFill();
  stroke(255);
  
  // The two parameters of the point() method each specify coordinates.
  // This call to point() draws at the position [100, 100]
  point(width/2, height/2);
  
  // Draws to the position [100, 50]
  point(width/2, height/4); 
  
  // It is also possible to specify a point with any parameter, 
  // but only coordinates on the screen are visible
  point(60, 30);
  point(60, 134);
  point(160, 50);
  point(280, -800);
  point(201, 100);
  
  // Coordinates are used for drawing all shapes, not just points.
  // Parameters for different methods are used for different purposes.
  // For example, the first two parameters to line() specify the coordinates of the 
  // first point and the second two parameters specify the second point
  stroke(204);
  line(0, 73, width, 73);
  
  // The first two parameters to rect() are coordinates
  // and the second two are the width and height
  rect(110, 55, 40, 36);
  </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>
  // Sets the screen to be 200, 200, so the width of the window is 200 pixels
  // and the height of the window is 200 pixels
  size(200, 200);
  background(0);
  noFill();
  stroke(255);
  
  // The two parameters of the point() method each specify coordinates.
  // This call to point() draws at the position [100, 100]
  point(width/2, height/2);
  
  // Draws to the position [100, 50]
  point(width/2, height/4); 
  
  // It is also possible to specify a point with any parameter, 
  // but only coordinates on the screen are visible
  point(60, 30);
  point(60, 134);
  point(160, 50);
  point(280, -800);
  point(201, 100);
  
  // Coordinates are used for drawing all shapes, not just points.
  // Parameters for different methods are used for different purposes.
  // For example, the first two parameters to line() specify the coordinates of the 
  // first point and the second two parameters specify the second point
  stroke(204);
  line(0, 73, width, 73);
  
  // The first two parameters to rect() are coordinates
  // and the second two are the width and height
  rect(110, 55, 40, 36);</pre>
  </body></html>

[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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