// Another Mandelbrot zoomer attempt // Logarithmic maps by Anders Sandberg // http://www.flickr.com/photos/arenamontanus/sets/72157615740829949/ // Unfortunately, they aren't available in high resolution :( package { import flash.display.Bitmap; import flash.display.BitmapData; import flash.display.Loader; import flash.display.LoaderInfo; import flash.display.Shader; import flash.display.ShaderJob; import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import flash.events.ProgressEvent; import flash.events.ShaderEvent; import flash.geom.Matrix; import flash.net.URLRequest; import flash.system.LoaderContext; import flash.utils.ByteArray; [SWF(width=465,height=465)] public class Zoomer extends Sprite { private var maps:Vector.<MapInfo>; private var out:BitmapData, mX:Number = 0; private var zoomer:Shader, job:ShaderJob; private function onProgress (e:ProgressEvent):void { graphics.clear (); graphics.lineStyle (2); graphics.drawRect (150, 220, 254, 34); graphics.lineStyle (); graphics.beginFill (0); graphics.drawRect (152, 222, 250 * e.bytesLoaded / e.bytesTotal, 30); graphics.endFill (); } private function onComplete (e:Event):void { graphics.clear (); var info:LoaderInfo = LoaderInfo (e.target); info.removeEventListener (ProgressEvent.PROGRESS, onProgress); info.removeEventListener (Event.COMPLETE, onComplete); if (out == null) { out = new BitmapData (390, 465, true, 0); var bmp:Bitmap = new Bitmap (out); bmp.x = 75; addChild (bmp); } var img:BitmapData = info.content ["bitmapData"]; var map:BitmapData = new BitmapData (img.height + 1, img.width, false, 0); var rot:Matrix = new Matrix; rot.rotate (-0.5 * Math.PI); rot.translate (1, img.width); map.draw (img, rot); rot.translate (-1, 0); map.draw (img, rot); zoomer.data.map.input = map; zoomer.data.map_width.value = [ map.width ]; zoomer.data.map_height.value = [ map.height ]; zoomer.data.map_scale.value = [ 20 ]; zoomer.data.dst_half_side.value = [ out.width / 2 ]; onEnterFrame (null); } private function onJobComplete (e:ShaderEvent):void { job.removeEventListener (ShaderEvent.COMPLETE, onJobComplete); addEventListener (Event.ENTER_FRAME, onEnterFrame); } private function onEnterFrame (e:Event):void { removeEventListener (Event.ENTER_FRAME, onEnterFrame); mX *= 0.97; mX += 0.03 * mouseX; var zoom:Number = Math.pow (10, -13.5 * Math.max (0, Math.min (1, mX / 465))); //trace ("starting shader job for zoom = " + zoom); zoomer.data.zoom.value = [ zoom ]; job = new ShaderJob (zoomer, out); job.addEventListener (ShaderEvent.COMPLETE, onJobComplete); job.start (); } public function Zoomer () { var sdata:Array = [-23295,0,164,1536,23151,28525,25970,-24564,28257,28005,29552,24931,25856,25976,28773,29289,28005,28276,24940,160,3190,25966,25711,29184,28001,27491,160,2166,25970,29545,28526,2,160,3172,25971,25458,26992,29801,28526,108,28519,24946,26996,26733,8297,28001,26469,8314,28527,28005,29184,-24319,512,12,24399,30068,17263,28530,25600,-23808,1133,24944,161,516,256,3940,29556,161,257,0,621,24944,24424,25961,26472,29696,-24063,28009,28246,24940,30053,65,8192,162,365,24952,22113,27765,25856,17948,16384,-24063,25701,26209,30060,29782,24940,30053,68,31232,161,257,0,365,24944,24439,26980,29800,162,365,26990,22113,27765,25856,16672,0,-24063,28001,30806,24940,30053,70,7232,162,356,25958,24949,27764,22113,27765,25856,17530,0,-24319,258,8,25715,29791,26721,27750,24435,26980,25856,-24063,28009,28246,24940,30053,65,8192,162,365,24952,22113,27765,25856,17530,0,-24063,25701,26209,30060,29782,24940,30053,67,26752,162,3172,25971,25458,26992,29801,28526,115,29045,24946,25888,26989,24935,25971,8294,28530,8302,28535,161,257,512,1133,24944,24435,25441,27749,162,365,26990,22113,27765,25856,16672,0,-24063,28001,30806,24940,30053,68,31232,162,356,25958,24949,27764,22113,27765,25856,17224,0,-24052,25701,29539,29289,28788,26991,28160,30568,25970,25888,31343,28525,8300,25974,25964,8292,28533,25196,25971,16128,-24319,258,2,31343,28525,162,365,26990,22113,27765,25856,0,0,-24063,28001,30806,24940,30053,63,-32768,162,356,25958,24949,27764,22113,27765,25856,16256,0,1027,193,512,0,771,193,0,4096,12803,32,16256,0,12803,16,16256,0,7428,193,768,4096,516,193,768,-20480,7427,193,1024,4096,12802,16,16128,0,7428,128,768,16384,1540,128,768,0,12804,64,16585,4059,1028,32,1024,16384,772,32,1024,0,7428,128,512,-16384,260,128,1024,-32768,12802,16,16256,0,7428,64,0,-16384,516,64,512,-16384,7426,16,1024,0,770,16,1024,16384,7427,32,512,-16384,12802,16,0,0,514,16,512,16384,9220,129,768,4096,7428,64,1024,0,772,64,512,-32768,5380,128,1024,16384,7428,64,512,-16384,772,64,1024,0,7426,16,1024,16384,12804,128,0,0,12804,32,16256,0,7428,16,0,-32768,516,16,1024,-32768,7428,32,512,-16384,2564,32,1024,0,7429,128,1024,-32768,2309,128,1024,-16384,7427,16,1024,-32768,12548,241,768,-20480,7425,243,1024,6912]; var ba:ByteArray = new ByteArray; ba.endian = "bigEndian"; for (var i:int = 0; i < sdata.length; i++) ba.writeShort (sdata [i]); zoomer = new Shader (ba); // six maps I like maps = Vector.<MapInfo>([ new MapInfo ( "http://farm4.static.flickr.com/3651/3380529677_d8ee24d8f6_s.jpg", "http://farm4.static.flickr.com/3651/3380529677_d8ee24d8f6_b.jpg" ), new MapInfo ( "http://farm4.static.flickr.com/3608/3383911290_b466f5b17e_s.jpg", "http://farm4.static.flickr.com/3608/3383911290_b466f5b17e_b.jpg" ), new MapInfo ( "http://farm4.static.flickr.com/3469/3381913937_2d4a19f9ed_s.jpg", "http://farm4.static.flickr.com/3469/3381913937_2d4a19f9ed_b.jpg" ), new MapInfo ( "http://farm4.static.flickr.com/3553/3388861278_939c34554c_s.jpg", "http://farm4.static.flickr.com/3553/3388861278_939c34554c_b.jpg" ), new MapInfo ( "http://farm4.static.flickr.com/3607/3401965050_3550a9bb77_s.jpg", "http://farm4.static.flickr.com/3607/3401965050_3550a9bb77_b.jpg" ), new MapInfo ( "http://farm4.static.flickr.com/3470/3380541917_ab38a3f340_s.jpg", "http://farm4.static.flickr.com/3470/3380541917_ab38a3f340_b.jpg" ) ]); var clickMe:Sprite = Sprite (addChild (new Sprite)); clickMe.buttonMode = clickMe.useHandCursor = true; clickMe.addEventListener (MouseEvent.CLICK, onClick); for (i = 0; i < maps.length; i++) { var thumb:Loader = new Loader; thumb.y = 75 * i; thumb.load (new URLRequest (maps [i].thumb)); clickMe.addChild (thumb); } loadMap (0); } private function onClick (me:MouseEvent):void { loadMap (mouseY / 75); } private function loadMap (n:int):void { if (job != null) { // either shader job is running or we are waiting for enterFrame job.cancel (); removeEventListener (Event.ENTER_FRAME, onEnterFrame); // clear out to see preloader out.fillRect (out.rect, 0); } var loader:Loader = new Loader; loader.contentLoaderInfo.addEventListener (ProgressEvent.PROGRESS, onProgress); loader.contentLoaderInfo.addEventListener (Event.COMPLETE, onComplete); loader.load (new URLRequest (maps [n].large), new LoaderContext (true)); } } } class MapInfo { public var thumb:String; public var large:String; public function MapInfo (t:String = "", l:String = "") { thumb = t; large = l; } }