Forked from:: makc3d's I can see my house (better version)

Another Mandelbrot zoomer

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 :(

makc3d

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favorite:40
lines:125
license : MIT License
modified : 2010-04-06 23:20:31

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// 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; }
}

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