Fingerprints
package {
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.filters.BlurFilter;
import flash.filters.ConvolutionFilter;
import flash.geom.ColorTransform;
import flash.geom.Point;
public class FingerPrints extends Sprite {
private const OUTPUT_WIDTH : int = 465;
private const OUTPUT_HIGHT : int = 465;
private var bitmapData : BitmapData;
private var displayBitmapData : BitmapData;
private var blurFilter : BlurFilter;
private var sharpConvFilter : ConvolutionFilter;
private var colorTrans : ColorTransform;
private var seed : uint = int(Math.random() * 10000);
private var alphaArray : Array;
private var pnt0 : Point;
private var pnt1 : Point;
private var pnt2 : Point;
private var pnts : Array;
private var n0 : int = 0;
private var n1 : int = 0;
private var n2 : int = 0;
private const w : int = OUTPUT_HIGHT;
private const h : int = OUTPUT_HIGHT;
private var brdr0 : Number;
private var brdr1 : Number;
private const zeroPnt : Point = new Point();
public function FingerPrints() {
stage.scaleMode = "noScale";
stage.align = "TL";
graphics.beginFill(0);
graphics.drawRect(0, 0, OUTPUT_WIDTH, OUTPUT_HIGHT);
graphics.endFill();
bitmapData = new BitmapData(OUTPUT_WIDTH, OUTPUT_HIGHT, true, 0x00000000);
displayBitmapData = new BitmapData(OUTPUT_WIDTH, OUTPUT_HIGHT, true, 0x00000000);
alphaArray = [];
for (var i : int = 0;i < 255; i++) {
alphaArray[i] = 0xFF000000;
}
pnt0 = new Point();
pnt1 = new Point();
pnt2 = new Point();
pnts = [pnt0, pnt1, pnt2];
colorTrans = new ColorTransform(0.8, 1.7, 2, 1);
blurFilter = new BlurFilter(2, 2, 2);
sharpConvFilter = new ConvolutionFilter(3, 3, new Array(0, -1, 0, -1, 10, -1, 0, -1, 0), 6);
var bitmap:Bitmap = new Bitmap(displayBitmapData);
addChild(bitmap);
addEventListener(Event.ENTER_FRAME, redraw);
brdr0 = 0x00808080;
brdr1 = 0x008A8A8A;
}
private function redraw(event : Event) : void {
n0 += 27.4 * .7 + 20 * Math.sin(n1 / 100);
n1 += 28.2 * .5;
n2 += 23.7 * .9;
pnt0.x = w * Math.sin(n0 / 3000);
pnt0.y = h * Math.cos(n1 / 5000);
pnt1.x = -w * Math.cos(n2 / 2000) * Math.sin(n1 / 1000);
pnt1.y = -h * Math.sin(n0 / 2000);
pnt2.x = w * Math.sin(n0 / 1007);
pnt2.y = h * Math.cos(n2 / 3000) * Math.sin(n0 / 3000);
bitmapData.perlinNoise(OUTPUT_WIDTH, OUTPUT_HIGHT, 3, seed, true, true, 1, true, pnts);
bitmapData.threshold(bitmapData, displayBitmapData.rect, zeroPnt, "<", brdr0, 0, 0x00FFFFFF, false);
bitmapData.threshold(bitmapData, displayBitmapData.rect, zeroPnt, ">", brdr1, 0, 0x00FFFFFF, false);
displayBitmapData.paletteMap(displayBitmapData, displayBitmapData.rect, zeroPnt, null, null, null, alphaArray);
displayBitmapData.draw(bitmapData, null, colorTrans);
displayBitmapData.applyFilter(displayBitmapData, displayBitmapData.rect, new Point(), blurFilter);
displayBitmapData.applyFilter(displayBitmapData, displayBitmapData.rect, new Point(), sharpConvFilter);
}
}
}