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-color-relativity.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>Relativity</h2>
  
  <p>Each color is perceived in relation to other colors. 
  The top and bottom bars each contain the same component colors,
  but a different display order causes individual colors to appear differently.</p>
  
  <p><a href="http://processing.org/learning/basics/relativity.html"><b>Original Processing.org Example:</b> Relativity</a><br>
  <script type="application/processing">
  color a, b, c, d, e;
  
  void setup() {
    size(200, 200);
    noStroke();
    a = color(165, 167, 20);
    b = color(77, 86, 59);
    c = color(42, 106, 105);
    d = color(165, 89, 20);
    e = color(146, 150, 127);
    noLoop();
  }
  
  void draw() {
    drawBand(a, b, c, d, e, 0, 4);
    drawBand(c, a, d, b, e, height/2, 4);
  }
  
  void drawBand(color v, color w, color x, color y, color z, int ypos, int barWidth) {
    int num = 5;
    color[] colorOrder = { v, w, x, y, z };
    for(int i = 0; i < width; i += barWidth*num) {
      for(int j = 0; j < num; j++) {
        fill(colorOrder[j]);
        rect(i+j*barWidth, ypos, barWidth, height/2);
      }
    }
  }
  </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>
  color a, b, c, d, e;
  
  void setup() {
    size(200, 200);
    noStroke();
    a = color(165, 167, 20);
    b = color(77, 86, 59);
    c = color(42, 106, 105);
    d = color(165, 89, 20);
    e = color(146, 150, 127);
    noLoop();
  }
  
  void draw() {
    drawBand(a, b, c, d, e, 0, 4);
    drawBand(c, a, d, b, e, height/2, 4);
  }
  
  void drawBand(color v, color w, color x, color y, color z, int ypos, int barWidth) {
    int num = 5;
    color[] colorOrder = { v, w, x, y, z };
    for(int i = 0; i &lt; width; i += barWidth*num) {
      for(int j = 0; j &lt; num; j++) {
        fill(colorOrder[j]);
        rect(i+j*barWidth, ypos, barWidth, height/2);
      }
    }
  }</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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