package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.BlendMode; import flash.display.Sprite; import flash.events.Event; import flash.events.TimerEvent; import flash.filters.BlurFilter; import flash.filters.ColorMatrixFilter; import flash.filters.GlowFilter; import flash.geom.Point; import flash.utils.Timer; [SWF(width="400", height="400", frameRate="48", backgroundColor="0x000000")] public class LineTest06 extends Sprite { private var lines:Array = []; private var bmd:BitmapData; private var bmp:Bitmap; private var container:Sprite; private var matrix:Array = [ 1.0, 0, 0, 0, 0, 0, 1.1, 0, 0, 0, 0, 0, 1.5, 0, 0, 0, 0, 0, 0.49, 0 ]; private var matrixFilter:ColorMatrixFilter = new ColorMatrixFilter(matrix); private var point:Point = new Point(); private var timer:Timer; public function LineTest06() { timer = new Timer(100, 20); timer.addEventListener(TimerEvent.TIMER, timerHandler); timer.start(); container = new Sprite(); container.x = stage.stageWidth / 2; container.y = stage.stageHeight / 2; container.rotationY = 90; addChild(container); bmd = new BitmapData(stage.stageWidth, stage.stageHeight, true, 0x00000000); bmp = new Bitmap(); bmp.bitmapData = bmd; bmp.blendMode = BlendMode.HARDLIGHT; addChild(bmp); addEventListener(Event.ENTER_FRAME, render); } private function timerHandler(event:TimerEvent):void { var line:Line = new Line(); container.addChild(line); lines.push(line); } private function render(event:Event):void { for (var i:int = 0; i < lines.length; i++) { var line:Line = lines[i]; line.render(); } bmd.draw(stage); bmd.applyFilter(bmd, bmd.rect, point, matrixFilter); bmd.applyFilter(bmd, bmd.rect, point, new GlowFilter(0x0042ff, 0.05, 10, 1, 3)); bmd.applyFilter(bmd, bmd.rect, point, new BlurFilter(1, 1)); container.rotationY += (stage.mouseX - stage.stageHeight / 2 - container.rotationY) * 0.01; container.rotationZ += (stage.mouseY - stage.stageWidth / 2 - container.rotationZ) * 0.01; } } } import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.BlendMode; import flash.display.Sprite; import flash.events.Event; import flash.filters.BlurFilter; import flash.filters.ColorMatrixFilter; import flash.filters.GlowFilter; import flash.geom.Point; class Line extends Sprite { private var points:Array; private var index:int = 0; private var bmd:BitmapData; private var bmp:Bitmap; private var matrix:Array = [ 1.3, 0, 0, 0, 0, 0, 1.0, 0, 0, 0, 0, 0, 1.8, 0, 0, 0, 0, 0, 0.49, 0 ]; private var matrixFilter:ColorMatrixFilter = new ColorMatrixFilter(matrix); private var point:Point = new Point(); private var radius:int = 400; public function Line() { //filters = [new GlowFilter(0x0078ff, 0.7, 10, 10, 5, 2)]; reset(); } private function reset():void { index = 0; points = []; var len:int = 30; for (var i:int = 0; i < len; i++) { points.push(new Point(i * 250 - 2000, Math.random() * 1.5 * (len - i))); } y = Math.sin(Math.PI / 180 * Math.random() * 360) * radius; z = Math.cos(Math.PI / 180 * Math.random() * 360) * radius; } public function render():void { graphics.clear(); setPoints(); index++; } private function setPoints():void { var v:Vector.<Point> = new Vector.<Point>(); var len:int = 10; for (var i:uint; i < len; i++) { var point:Point = points[i + index]; if (!point) { reset(); return; } v[i] = new Point(point.x, point.y); } drawSpline(v); } private function drawSpline(v:Vector.<Point>):void { if(v.length < 2) return; v.splice(0, 0, v[0]); v.push(v[v.length-1]); var numSegments:uint = 20;//曲線分割数（補完する数） for(var i:uint=0; i<v.length - 3; i++) { var p0:Point = v[i]; var p1:Point = v[i+1]; var p2:Point = v[i+2]; var p3:Point = v[i+3]; splineTo(p0, p1, p2, p3, numSegments); } } private function splineTo(p0:Point, p1:Point, p2:Point, p3:Point, numSegments:uint):void { graphics.moveTo(p1.x, p1.y); graphics.lineStyle(2, 0xFFFFFF); for(var i:uint=0; i<numSegments; i++) { var t:Number = (i+1)/numSegments; graphics.lineTo(catmullRom(p0.x, p1.x, p2.x, p3.x, t), catmullRom(p0.y, p1.y, p2.y, p3.y, t)); } } public function catmullRom(p0:Number, p1:Number, p2:Number, p3:Number, t:Number):Number { var v0:Number = (p2 - p0) * 0.5; var v1:Number = (p3 - p1) * 0.5; return (2 * p1 - 2 * p2 + v0 + v1) * t * t * t + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t * t + v0 * t + p1; } }