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Fibonacci Graphics

このエントリーを含むはてなブックマークはてなブックマーク - Fibonacci Graphics Googleブックマークに追加 このエントリをつぶやくこのWebページのtweets

package
{
    import flash.display.*;
    import flash.events.*;
    import flash.filters.*;
    import flash.geom.*;

    public class Fibonacci extends Sprite
    {
        //定数
        private const N:int = 200, W:int=465, H:int=465, colorAry:Array = [16711680,16712704,16713728,16715008,16716032,16717056,16718080,16719360,16720384,16721408,16722432,16723712,16724736,16725760,16727040,16728064,16729088,16730112,16731392,16732416,16733440,16734464,16735744,16736768,16737792,16738816,16740096,16741120,16742144,16743168,16744448,16745472,16746496,16747520,16748800,16749824,16750848,16751872,16753152,16754176,16755200,16756224,16757504,16758528,16759552,16760576,16761856,16762880,16763904,16764928,16766208,16767232,16768256,16769280,16770560,16771584,16772608,16773632,16774912,16775936,16776960,16514816,16187136,15924992,15662848,15400704,15073024,14810880,14548736,14286592,13958912,13696768,13434624,13172480,12844800,12582656,12320512,12058368,11796224,11468544,11206400,10944256,10682112,10354432,10092288,9830144,9568000,9240320,8978176,8716032,8453888,8126208,7864064,7601920,7339776,7012096,6749952,6487808,6225664,5897984,5635840,5373696,5111552,4783872,4521728,4259584,3997440,3669760,3407616,3145472,2883328,2555648,2293504,2031360,1769216,1441536,1179392,917248,655104,327424,65280,65284,65288,65293,65297,65301,65306,65310,65314,65318,65322,65327,65331,65335,65340,65344,65348,65352,65356,65361,65365,65369,65374,65378,65382,65386,65390,65395,65399,65403,65408,65412,65416,65420,65425,65429,65433,65437,65442,65446,65450,65454,65459,65463,65467,65471,65475,65480,65484,65488,65493,65497,65501,65505,65509,65514,65518,65522,65527,65531,65535,64511,63487,62207,61183,60159,58879,57855,56831,55807,54783,53503,52479,51455,50175,49151,48127,47103,46079,44799,43775,42751,41727,40447,39423,38399,37375,36095,35071,34047,33023,31743,30719,29695,28415,27391,26367,25343,24319,23039,22015,20991,19711,18687,17663,16639,15615,14335,13311,12287,11007,9983,8959,7935,6911,5631,4607,3583,2303,1279,255,262399,524543,852223,1114367,1376511,1638655,1966335,2228479,2490623,2818303,3080447,3342591,3604735,3932415,4194559,4456703,4718847,4980991,5308671,5570815,5832959,6095103,6422783,6684927,6947071,7274751,7536895,7799039,8061183,8388863,8651007,8913151,9175295,9437439,9765119,10027263,10289407,10617087,10879231,11141375,11403519,11731199,11993343,12255487,12517631,12779775,13107455,13369599,13631743,13893887,14221567,14483711,14745855,15073535,15335679,15597823,15859967,16187647,16449791,16711935,16711931,16711927,16711922,16711918,16711914,16711910,16711905,16711901,16711897,16711892,16711888,16711884,16711880,16711875,16711871,16711867,16711863,16711859,16711854,16711850,16711846,16711842,16711837,16711833,16711829,16711824,16711820,16711816,16711812,16711808,16711803,16711799,16711795,16711791,16711786,16711782,16711778,16711773,16711769,16711765,16711761,16711756,16711752,16711748,16711744,16711740,16711735,16711731,16711727,16711723,16711718,16711714,16711710,16711705,16711701,16711697,16711693,16711688,16711684];
        //描画用
        private var sp:Sprite, canvas:BitmapData;
        //点のリスト
        private var list:Vector.<Point>;
        //パラメータ
        private var angle:Number=0,  L:int = 30, P:int = 1, Q:int = 4, A:Number = Math.PI*(1+Math.sqrt(5));
        public function Fibonacci()
        {
            graphics.beginFill(0);
            graphics.drawRect(0, 0, W, H);
            graphics.endFill();
            
            sp = new Sprite();
            canvas = new BitmapData(W,H, false, 0);
            addChild(new Bitmap(canvas));
            
            draw();
            
            stage.addEventListener(MouseEvent.CLICK, onClick);
            addEventListener(Event.ENTER_FRAME, onEnterFrame);
        }
        
        private function draw():void{
            list = new Vector.<Point>();
            for(var i:int = 0; i < N; i++) list.push(new Point((W>>1) + (i*2+10)*Math.cos(A*i), (H>>1) + (i*2+10)*Math.sin(A*i)));
            sp.graphics.clear();
            sp.graphics.lineStyle(Math.random()*4+1);
            var m:Matrix = new Matrix;
            m.createGradientBox(W, H, 0);
            sp.graphics.lineGradientStyle(GradientType.RADIAL, [colorAry[int(Math.random()*360)], colorAry[int(Math.random()*360)]], [0.2, 1],  [0, 255], m);
            
            for(i = 0; i < L; i++){
                for(var j:int = i; j < N-P; j+=L){
                    if(j == i) sp.graphics.moveTo(W>>1, H>>1);
                    sp.graphics.curveTo(list[j].x, list[j].y, list[j+P].x, list[j+P].y);
                }
            }
        }
        
        private function onClick(e:MouseEvent):void{
            L = Math.random()*95+5;
            P = Math.random()*15+1;
            Q = Math.random()*4+4;
            A = Math.random()*6;
            draw();
        }
        
        private function onEnterFrame(e:Event):void{
            var m:Matrix = new Matrix();
            m.translate(-W/2, -H/2);
            m.rotate(angle);
            m.translate(W/2, H/2);
            angle+=0.05;
            
            canvas.colorTransform(canvas.rect, new ColorTransform(0.95, 0.95, 0.95));
            canvas.draw(sp, m);
            canvas.applyFilter(canvas, canvas.rect, new Point, new BlurFilter(Q,Q,4));
        }
    }
}

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