等高線

by watanabe 16 Mar 2012

• Forked from watanabe's 使徒襲来
• Diff: 29
• Related works: 22
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/**
 * Copyright watanabe ( http://wonderfl.net/user/watanabe )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/W0ax
 */

// forked from watanabe's 使徒襲来
// forked from hacker_n96o8lrr's forked from: BitmapDataSample9
// forked from nutsu's BitmapDataSample9
package {
    import flash.text.TextFormat;
    import flash.filters.BlurFilter;
    import flash.text.TextField;
    
    import flash.display.Sprite;
    import flash.display.BitmapData;
    import flash.display.Bitmap;
    import flash.display.BitmapDataChannel;
    import flash.geom.*;
    import flash.events.Event;
    
    [SWF(width=465,height=465,backgroundColor=0)]
    public class BitmapDataSample9 extends Sprite {
        
        private var bmpdata:BitmapData;
        private var out:BitmapData        
        
        private var mapR:Array=[]
        private var mapG:Array=[]
        private var mapB:Array=[]

        private var tf:TextField=new TextField();
        
        public function BitmapDataSample9() {
            var tfm:TextFormat = new TextFormat();
            tfm.font="ＭＳ ゴシック";
            tf.setTextFormat(tfm);
            tf.text="ABCDEFG\nABCDEFG\nABCDEFG";
            
            tf.scaleX=tf.scaleY=20;
           // tf.filters=[new BlurFilter(4,4)];
            
            //BitmapDataを作成して表示リストに追加
            bmpdata = new BitmapData( 465, 465, false, 0 );
            out = bmpdata.clone();
            stage.quality="medium";
            for(var i:int = 0; i < 0x100; i++) {
                mapB[i] = (i%18!=0)?0:100+155*Math.random()
                mapG[i] = (i%18!=0)?0:100+155*Math.random() << 8;
                mapR[i] = (i%18!=0)?0:100+155*Math.random() << 16;
            }           
                        
            var bmp:Bitmap = new Bitmap(out,"auto",true);
            
            addChild( bmp );
            //イベント
            addEventListener( Event.ENTER_FRAME, enterframe );
        }
        
        private var baseX:Number         = 120;
        private var baseY:Number         = 120;
        private var octaves:uint         = 2;
        private var randomSeed:int       = Math.random()*0xffffffff;
        private var stitch:Boolean       = false;
        private var fractalNoise:Boolean = true;
        private var channelOptions:int   = BitmapDataChannel.RED|BitmapDataChannel.BLUE;
        private var grayScale:Boolean    = true;
        private var offset:Array         = [new Point(),new Point(),new Point()];
        
        private function enterframe(e:Event):void {
            //PerlinNoise
            bmpdata.perlinNoise( baseX, baseY, octaves, randomSeed, 
                                 stitch, fractalNoise, channelOptions, grayScale, offset );
                              
                              var mat:Matrix=new Matrix();
                              mat.scale(15,15);
            //bmpdata.draw(tf,mat);
            offset[0].y += 3;
            //offset[1].y += 1;
           // offset[2].y += 0.5;
           //out.applyFilter(out,out.rect,new Point(),new BlurFilter(2,2));
            out.paletteMap(bmpdata,bmpdata.rect,new Point(),mapR,mapG,mapB);
            
        }
    }
}