bitmapdata

I am trying to grab part of stage area using BitmapData and copyPixels method: bmd = new BitmapData(stage.stageWidth, stage.stageHeight); bmdRect = new BitmapData(320, 240); rectangle = new Rectangle(360, 20, 320, 240); bmdRect.copyPixels(bmd, rectangle, new Point()); bmd.draw(bmp); bmp = new Bitmap(bmdRect); var myEncoder:JPGEncoder = new JPGEncoder(100); var byteArray:ByteArray = myEncoder.encode(bmd); The result i get is an empty .jpg I m pretty sure that the error is in the Bitmap procedure and not the saving one... Dimitree Finally used this solution to copy part of the stage ( I copied

In Flash, the BitmapData object can be used to store bitmaps in RAM, you can later draw them to a MovieClip using the beginBitmapFill() method. How do you load an external bitmap file (.jpg) into a BitmapData object? Even AS3 code would be helpful. Cotton AS3 code to load a PNG and "get" its bitmapData var bitmapData:BitmapData; var loader:Loader = new Loader(); loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete); loader.load(new URLRequest("../lib/img.png")); function onComplete (event:Event):void { bitmapData = Bitmap(LoaderInfo(event.target).content).bitmapData; } Refering

How can I change the bitmapdata of a coloured Bitmap to Black and White in AS3 ? I'm developing a simple image editor tool for a CMS in flash. People should be able to switch the colour of the uploaded Bitmap to black and white. I want the bitmapdata itself to change So I can write it to a ByteArray with Adobe's JPGEncoder Class afterwards. this would be the most elegant solution i presume (with source being you BitmapData ): const rc:Number = 1/3, gc:Number = 1/3, bc:Number = 1/3; source.applyFilter(source.bitmapData, source.bitmapData.rect, new Point(), new ColorMatrixFilter([rc, gc, bc, 0,

I'm using com.adobe.images.PNGEncoder to encode bitmapData to a byteArray. Is there a way to convert the byteArray back to bitmapData NOT using a Loader? thanks. EDIT: the reason i don't want to use a Loader is it being Asynchronous, and I don't want to implement eventlisteners. The following is using the loader class but is synchronous. var loader:Loader = new Loader(); loader.loadBytes(byteArray); bmpData.draw(loader); Edit : Nevermind the loadBytes is asynchronous too, the documentation says you need to wait for the init event. What is the reason for not wanting event listeners? They are a

I try to get all byte values from a Bitmap(System.Drawing.Bitmap). Therefore I lock the bytes and copy them: public static byte[] GetPixels(Bitmap bitmap){ if(bitmap-PixelFormat.Equals(PixelFormat.Format32.bppArgb)){ var argbData = new byte[bitmap.Width*bitmap.Height*4]; var bd = bitmap.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadOnly, bitmap.PixelFormat); System.Runtime.InteropServices.Marshal.Copy(bd.Scan0, argbData, 0, bitmap.Width * bitmap.Height * 4); bitmap.UnlockBits(bd); } } I tested this Image with a very simple 2x2 PNG image with pixels (red, green,

Say I have a BitmapData of 600x600 and I want to scale it down to 100x100. Iain This works: var scale:Number = 1.0/6.0; var matrix:Matrix = new Matrix(); matrix.scale(scale, scale); var smallBMD:BitmapData = new BitmapData(bigBMD.width * scale, bigBMD.height * scale, true, 0x000000); smallBMD.draw(bigBMD, matrix, null, null, null, true); var bitmap:Bitmap = new Bitmap(smallBMD, PixelSnapping.NEVER, true); Carlo public function drawScaled(obj:IBitmapDrawable, thumbWidth:Number, thumbHeight:Number):Bitmap { var m:Matrix = new Matrix(); m.scale(WIDTH / obj.width, HEIGHT / obj.height); var bmp

In my application i want to send bitmap image to the server in the form of string, i want to know how many ways are available to convert a bitmap to string. now i am using Base64 format for encoding and decoding, it takes little bit more memory. is there any other possibilities to do the same thing in different ways which takes less memory cosumptions. Now i am using this code. Resources r = ShowFullImage.this.getResources(); Bitmap bm = BitmapFactory.decodeResource(r, R.drawable.col); ByteArrayOutputStream baos = new ByteArrayOutputStream(); bm.compress(Bitmap.CompressFormat.PNG, 100, baos);