Actionscript 3 :: Bitmap Too Big - Limitation Is In Bitmap And Loader?
Mar 30, 2011
In AS3, I am loading a png from a zip file (nochump's zip library through ByteArray to Loader). The png can be up to 45k pixels wide but only 120 tall. This creates a problem in flash, as images can only be ~8000 pixels wide. A possible solution would be to split the images into 6 columns somehow. This would probably need to be done in the ByteArray state, because the limitation is in Bitmap and Loader.
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Aug 24, 2009
how to create an image gallery that loads external bitmaps. It also has some nice fade in/fade out effects using Tweener. I was wondering, what would I need to modify from my code to load MovieClips from the library instead of the external JPEGs.
Code:
import caurina.transitions.Tweener;
var btn:Object;
var disabledBtn:Object;
[Code].....
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Feb 3, 2009
I'm cutting my teeth in actionscript 3 on a game that has a character running through a world. So, I have set up my Hit Testing by using the bitmap data hit test method, since I figured my world is going to be destructible - it'd be nice to update the level and then redraw it and have the character interact with the new change. (That works beautifully) I am however; a bit confused as to how I have my hit Testing set up. I've been messing around with it, and it works for now - but I'm not sure why.. currently, I have a character set up by using a class I built and using a series of animations I created. So, this character has a walking and falling animation, etc. This is a movie clip.
Then there's a bitmap 'emptyBitmap' with bitmap data created - however; I never really added this as a child to the character. This is sized to the dimensions of my character. My level is created as a movielip, then it's drawn to a bitmap - when the level movieclip is changed, the bitmap redraws, and that's how this updates.
[Code]....
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Aug 20, 2009
I know the topic of "duplicating" movieclips is a hot issue with the new virtual machine. Luckily, I understand the implications. I only am [currently] interested in duplicating a Bitmap. See, I load an image from an URL using 'flash.display.Loader.load', which is a non-blocking operation in Flash Player.However,I may use multiple copies of the loaded image (which is reported to be a Bitmap, naturally) in the display list at the same time.Hence, I naturally do not want to load the image from an URL every time, because I don't want to wait for a non-blocking call to complete. Nor do I need to - I mean one copy is already loaded, so it should be possible to just "duplicate" it, right?
My idea is to do use the bitmapData property of a Bitmap and pass it to the constructor of a new Bitmap object. I have not tried the following in action, but I want to hear whether any of you did and if the following would not work, what would:
Code:
var original_bitmap: Bitmap;
var copy_of_original_bitmap: Bitmap = new Bitmap(original_bitmap.bitmapData);
LiveDocs mention that the BitmapData being passed to a Bitmap constructor is "being referenced", which to me might suggest it cannot be used twice? There is also the BitmapData::clone() method, which I am not sure is applicable here or not.I know this is a lot of talk instead of just trying this out, but I test so much Flash Player code daily just to see "what works" (which should be documented instead by Adobe),
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Feb 22, 2011
If I have a BitmapData that's already been drawn onto a Sprite. Is there a way to redraw the BitmapData onto a Sprites Graphics object without having to invoke beginBitmapFill and passing in the same BitmapData?
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Dec 29, 2010
I'm working on a game, and to keep performance good, instead of addChild'ing 50 new sprites to the stage every second, I decided to have each player draw to their own bitmap, and then to the 'master' bitmap. This introduces an issue though: the second player would override all data the first player has put into to bitmap...My basic debugging proof of concept:
Code:
// bitmap test
import flash.display.Bitmap;
import flash.display.Bitmap;[code]......
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Mar 26, 2012
i'm trying to load images from Facebook Albums to my flex app, this is the code called when i click on a FB image:
[Code]...
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Apr 10, 2012
I'm loading a list of urls of pics from an fql query, then loading those urls with the loader class using this function:_loc is a MovieClip that holds the picture,[code]In onMyPictureLoaded I would like to get the bitmapdata out of loader.content and scale the image (smooth it too) that way, and then reattach it to the _obj MovieClip, but I'm having trouble reattaching that new bitmap to the object.It seems the problem is more to do with events and not having the ability to pass information (_loc, for example) from:loader.contentLoaderInfo.addEventListener(Event.CO MPLETE,onMyPictureLoaded); to the onMyPictureLoaded function.
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May 9, 2011
I have a bitmap which has several frames (packed along the horizontal axis). In order to render them I copy it to the backbuffer (larger bitmap) as follows:
Actionscript Code:
public override function copyToBackBuffer(db:BitmapData):void{ if (active) var drawRect:Rectangle = new Rectangle((currentFrame-1) * frameWidth, 0, frameWidth,
[code].....
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Feb 17, 2012
In pure AS3, I have a pixelbender and a large bitmap. The pixelbender is configurable with a distance parameter to affect only a small area of the bitmap. The problem is that the pixelbender is executing over the whole bitmap. What would be the best way to update only the effected region of the bitmap? Given this config:
[Code]...
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Oct 8, 2006
Is there a way to write a bitmap font right into the bitmap being desplayed? Mabey better worded: myBitmap.draw(image, t) draws a picture is there a way to draw text? I'm stuck even if its just a work around in some way I would like to know... (the current work around i have in my head is writing it in a movieclip turning that into bitmap data and drawing it... esentially creating a prototype answering my question... but a built in way would be easier probably).
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Aug 27, 2009
I'm trying to create a AS3 image loader with the possibility of a PNG (transparent) mask...
Tried and searched for hourse, but I won't get it right...
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Oct 12, 2009
I've seen mention of there being some security risk with loading images and leaving them in loaders. A few articles I've run across said that you should always draw them as a bitmap when the loading is done.
Is there any truth to this? I have a few loaders I have left in my project, do I need to hand their content off to a bitmap? What is the advantage of always having a bitmap represent the loaded image?
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Feb 7, 2011
I was trying to build a class that would load external bitmap images into Bitmap objects. I'm having a bit of trouble as the image loads, but does not display visually. Heres the code to instantiate it:
ActionScript Code:
var loadd:Bitmap= new Bitmap();
ImageLoad.loadImage( loadd, '../ght.png' );
this.addChild(loadd);
And heres the class:
[Code]...
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Nov 5, 2009
I'm using Sandy to animate some objects in 3D. What I currently do to images which are EXPORTED in the library, I want to do to some bitmaps that I create using the DRAW technique. But it wont work :-(
CODE FOR 'CREATED BITMAP' :
ActionScript Code:
var bData:BitmapData = new BitmapData(myObject.width,myObject.height);
bData.draw(mask5);
[Code]....
Sandy doesn't seem to treat the 'created' bitmap the same as those that are exported from the library.
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Dec 2, 2009
I set up this sample movie clip in the hopes to figure out a problem I'm having:[code]In the above code, I can add the contents of myImageLoader to myMovieClip with no issues and it resizes as expected (and consequently artifacts appear). With the final two lines of code, apparently myBitmap is not being loaded with the contents of myImageLoader.content which will cause the final line to fail with the following error:Code:TypeError: Error #1009: Cannot access a property or method of a null object reference.at loadImageTest_fla::Main Timeline/frame1()I understand the error, I just don't get why the contents are not being loaded into the bitmap object.
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Mar 10, 2010
I am loading a fairly large image file and want to create a bitmap of the loader content. I want to then use this Bitmap and resize it according to the current dimension of the stage. However, I also want to keep the loader content as "originally loaded" as a reference in case the stage is resized and the user wants to view this particular image again. The way my AS is written as of now, I am manipulating the loader content. How do I not do this? How do I "copy" the loader content so I can manipulate the bitmap copy while leaving the loader content unaltered?
<AS>
var lightboxImage:Bitmap = new Bitmap();
function resizeLightbox():void{
lightboxImage = myLoader.content;
lightboxImage.width = myLoader.content.width;
lightboxImage.height = myLoader.content.height;
[Code] .....
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Feb 25, 2010
I want to load an external image (dest) and display it on the stage, and i want to load another image (src) which will not be visible. When i hold the left mouse button on the image that appears on the stage, then a function that start copies the src image to the dest will be invoked. Actually i want to reproduce the scratch effect on an image that hides another underneath. here is my code [ the copypixels function is triggered on mouse_move event for debug purposes ]
package
{
import flash.display.Sprite;
import flash.display.BitmapData;
[Code]....
Although the two images are loaded into memory and the first one is shown on the stage, when the mouse_move events triggers the corresponding handlers the copy does not work.
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May 3, 2010
I'm writing a simple little test app consisting of 'main.as' and 'test.png', both within the same subdir on my harddrive. I'm compiling via command line with mxmlc, and testing via 'open with...' and Chrome. The code uses flash.display.Loader.load( "test.png" ) - but I can't access the loaded content (or even draw it to a bitmapdata!) due to security exceptions.
My goal is to get the image into something (preferably a bitmapdata!) I can draw to other bitmapdatas, as I understand this is fastest for gaming. I've tried all sorts of things, including creating a 'crossdomain.xml' that goes in the same dir as the above files (and doing the appropriate LoaderContext thing), tried various system.Security things and still no joy.
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Nov 29, 2009
Is it possible to place two or more instances of the same loaded from a loader Bitmap in one container?
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Sep 23, 2009
I'm developing an app that currently is using Loader to get images from another server.This shouldn't currently work since we are still waiting for the owner of that server to put a crossdomain file in place.However, it does work -- sort of .
Loader can load the images fine, without an error.But then the app has a feature in which we are making a larger duplicate of the image to display in a sidebar, we do this in this manner:
var myBitmap:Bitmap = Bitmap(loader.content);
and when this runs we get a Flash player security error 2122, sandbox violation.So while I'm hoping all this will fix itself when the crossdomain.xml file is put in place,I'm confused as to why we only get the sandbox error when we make a Bitmap from the image, and not when we initially try to retrieve the image.
(Incidentally: is there a better way to make a "copy" of an image loaded by a Loader, and then change its width and height for simultaneous display in another part of the stage? I don't need to change its actual dimensions -- I just need to change its display width and height.)
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Aug 1, 2009
I'm writing a class where I load a image with Loader and then tries to copy it into a Bitmap. This goes all and well when I do this in an event but not when I try to make a function of it.
Some code.....
class variables :
var imgLoader:Loader;
From Main :
imgLoader = new Loader();
[code].....
So far so good. but when I try to make a function that returns a copy of the previous loaded image (imgLoader) I get the error :
1067: Implicit coercion of a value of type flash.display:displayObject to an unrelated type flash.display:BitmapData.
The code looks in the function looks like this :
var bm:Bitmap = new Bitmap(imgLoader.content);
var bmret:Bitmap = new Bitmap(bm.bitmapData.clone());
Why is this? All I can think off is that in the LOAD COMPLETE event i get a reference of the current target (I think this is the way it works), and are not using the class variable defined at the top in the code.
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Feb 24, 2012
Letīs say I have a bitmap with 3 colors: red, green and blue (not mixed)
What if I wanted to make a bitmap of the red part of the first bitmap?
Iīd like to take the red pixels from first bitmap (and its positions), and make another bitmap.
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Oct 13, 2009
I haven't worked very much with bitmap manipulation and I need to create an app that can find a bitmap (or a pattern of pixels really) in another bitmap.Are there other methods of doing it besides iterating through the pixels and using getPixel()?I'm of course looking for the most effective solution.
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Aug 7, 2009
Use the flash CS4 tool's on a bitmap image after tracing the bitmap image and applying my settings?
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Apr 21, 2009
I'm trying to break a movieclip into pixels and then move each pixel independently, but am having a hard time wrapping my brain around the code.
Right now I have a MC on the stage with an image in it. I'm able to go through each pixel, copy them one at a time then add a tween like this:
Code:
function copyPixels() {
var rect:Rectangle = new Rectangle(300, 400, 1, 1);
var bytes:ByteArray = bmd1.getPixels(rect);
var bmd3:BitmapData = new BitmapData(1,1, true, 0xFF000000);
[Code]...
But that doesn't really give the effect I want. I want the whole image visible then have one pixel at a time fly off. How do I do this? Do I copy the entire image to a ByteArray then address each element in the array?
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Aug 31, 2010
I use flash CS5 on my mac and I would like to use this font. Would it be possible to turn of the anti aliasing of the font for better legibility and crisper edges when programming.
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Jun 30, 2010
I've a circle that I want to attach an image to. The trouble is I want to centre it right where I want on the shape. When I select type=bitmap and import the gif though it is 'wallpapered' over shape automatically like a pattern and obviously this doesn't line up with the image properly. How do I get the shape and image to align (both shape and image are identical in size) in cs3?
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May 27, 2009
Okay, I know this is a stupid question but, if you bring in a jpg or png image and either convert it to a graphic or a movie clip, or just leave it as an image, is there a way to distort the image other than scaling, rotating and skewing it. For example, I want to change the perspective of an image the way I do in photoshop.Let's say the image is a house, in photoshop, you can take the house and make it look like a trapezoid shape, you know, wider at the bottom than at the top Is there a way to do this using flash tools? Envelope distorting, if you break the image apart doesn't really work.
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Sep 11, 2009
I have a variable called pasteData:Bitmap I want to send it to a PHP script on my website (the .swf will be on the same page) but I have no idea how to do this.
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