#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 < width; i += barWidth*num) { for(int j = 0; j < num; j++) { fill(colorOrder[j]); rect(i+j*barWidth, ypos, barWidth, height/2); } } }</pre> </body></html>
(C) Æliens 20/2/2008
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