http://snippets.dzone.com/posts Fri, 25 Jul 2008 15:16:00 GMT DZone Snippets: cantor code http://snippets.dzone.com/posts/show/5102 This simple Processing programme generates the <a href="http://en.wikibooks.org/wiki/Fractals/Cantor's_Set">Cantor's Sets</a> fractal. <br /> <br />Images are generated randomly, but tend to look like <a href="http://scvalex.deviantart.com/art/Cantor-s-Sets-76451637">this</a>. <br /> <br /><code> <br />int setHeight = 60; <br />color setColour = color(184 + random(-40, 40), <br /> 124 + random(-40, 40), <br /> 124 + random(-40, 40)); <br />int wid = 600; <br /> <br />void setup() { <br /> size(wid, (int)((log(wid) / log(3) + 1) * (setHeight + 5))); <br /> background(0); <br /> smooth(); <br /> <br /> cantorSet(10, 10, width - 20, setColour); <br /> <br /> save("cantorSet.png"); <br />} <br /> <br />float rnd(float x) { <br /> return x + random(-20, 20); <br />} <br /> <br />void brushRect(int x, int y, int w, int h) { <br /> for (int i = 0; i < h; ++i) { <br /> float r = random(3); <br /> strokeWeight(r); <br /> float downpull = random(h / 4); <br /> float shudder = random(-2, 2); <br /> line(x + shudder, y + i, x + w - shudder, y + i + downpull); <br /> } <br />} <br /> <br />void cantorSet(int y, int offX, int wid, color col) { <br /> if ((y > height - 10) || (wid < 1)) <br /> return; <br /> <br /> stroke(col); <br /> brushRect(offX, y, wid, setHeight); <br /> //fill(col); <br /> //rect(offX, y, wid, setHeight); <br /> <br /> color newCol = color(rnd(red(col)), rnd(green(col)), <br /> rnd(blue(col))); <br /> cantorSet(y + setHeight + 5, offX, wid / 3, newCol); <br /> cantorSet(y + setHeight + 5, offX + wid*2/3, wid / 3, newCol); <br />} <br /></code> Mon, 04 Feb 2008 11:08:31 GMT http://snippets.dzone.com/posts/show/5102 scvalex (Alexandru Scvortov)