ActionScript 2.0 :: BitmapData And Transformation Matrices - Shift The Newly Created Bitmap?
Jan 29, 2007
I've started getting to grips with using the BitmapData class and a Transformation Matrix in the hope that I can start making some interesting image effects. However, at the moment Im having trouble figuring out how to shift the newly created bitmap so that any scale transformations are applied from the center rather than the top left corner. See here for example: [URL] The flower on the left is the original, the flower on the right is the new image created using "bitmapData.draw()". It has been scaled up to twice the size, but I want this to happen from the center of the image.
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Oct 22, 2010
So, you have a sprite, you draw some graphics, you set cacheasbitmap=true... I can't seem to access the newly created bitmap data, to access the dispose() method.
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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.
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ActionScript Code:
import flash.display.Sprite;
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[Code].....
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Feb 6, 2011
I've been messing around a bit with some low-level bitmap manipulation and having been creating some various color matrices to apply to bitmap data to add "filters" (for lack of a better term).I have seen a number of tutorials online in C# and AS3 about applying various color matrices to bitmaps, but was curious if anyone simply had a collection of these color matrices that map to specific filter styles (black and white, sepia, etc.).
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[AS]
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Jun 16, 2011
I am completely new to actionscript although I do come from a OOP background. I have been asked to trial Flash and Actionscript 3 in particular - so I do come with a few preconceptions on how I expect actionscript to behave. I have a problem I donot understand. I have created a new class and to test it I use a simple test harness in the form of a .fla file.
The issue I have is when I create a new instance of the class and assign it to a variable, subsequent background changes to that instance of the class are not 'picked-up' when referenced through the variable. I would expect that given instance of class could be assigned to many different variables and any updates using one variable would accessible using any of the other variables.
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Mar 11, 2010
I have a MXML button:
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Nov 11, 2010
I have a big code, but essentially, this part comes to transformation of a BitmapData to triangle points, using affine transformation. Also - I know that BitmapData is rectangular - the last, fourth point of the transformation is just the first one reflected over the axis defined by the other two points.
A small thing so you can see which point is which one:
1........2
. / / / /|
./ / / /
. / / / |
./ / /
. / / |
./ /
. / |
./
3 - - - -4 - 4th point reflected
This whole process would come to scaling, rotating and skewing the BitmapData based on the angles between the points... But somehow my code still does not work. Looking at a similar thing in PaperVision 3D - still didn't work?
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Jul 14, 2003
How flash setup a variable to handle the newly created movieclip?
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Aug 24, 2004
In the code I'm writing, I use a with block to reference a newly created object thus:
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Feb 28, 2009
How do you shift the colors of a bitmap image, with a red/yellow cloud, so that red becomes orange, then yellow, then orange, then red again? The yellow should go trough the same process, but start and end with yellow. Same with all the other colors in between.Kind of like when you play with the hue-setting in photoshop, but instead of looping trough the whole spectrum, it only loops trough red>orange>yellow>orange>red.
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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?
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Code:
var original_bitmap: Bitmap;
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now i'm trying to read the bitmap data with getPixel() but the return value is off since it is returning the untransformed position of the bitmap data instead of the visible transformed bitmapdata.
Bitmap(Sprite(evt.currentTarget).getChildAt(0)).bitmapData.getPixel(evt.localX, evt.localY)
how can i get an accurate reading of the pixel data from a bitmap with a matrix transformation? updated with code. assume the redCircleData in my example is more colorful and something worth retrieving pixel data.
var redCircleData:Sprite = new Sprite();
redCircleData.graphics.beginFill(0xFF0000, 1.0);
redCircleData.graphics.drawCircle(0, 0, 100);[code]............
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var xml:XML;
var xmlReq:URLRequest = new URLRequest("xml.xml");
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Jun 6, 2010
I am trying to create a gallery where each thumb is housed inside of it's own movie clip that will have more data, but it keeps failing because it won't let me refer to the newly created instance of the movie clip. Below is what I am trying to do.
var xml:XML;
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[Code]....
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ActionScript Code:
var bitmapData:BitmapData = Bitmap(source_image.content).bitmapData;
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what i need to do is basically a motion trail on a bitmap.
I want to continuously draw a bitmap onto itself while previous versions are faded into the background, similar to a smoke type effect.
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I am writing a screen scroller for a game I'm making. There's a BitmapData object which holds the background graphic, yet I do not want to show/render it on screen all at once.
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I've been looking for a solution for hours now. I have a movieclip which contains an image. Created by doing: put image on stage, convert to symbol, movieclip type, ok.I'd like to extract this bitmap because I want to use (somewhere else): graphics.begintBitmapFill(); but this method needs a BitmapData object and not a movieclip to create a repeating background (in my case).
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What i want to do is get a png from my library load it into bitmapData then into bitmap then onto the stage.I don't even have enough success here yet to have code to post. Please for the LOVE of Mike!
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I have the following code
///Get BitmapData from library in SWC
var ClassReference:Class = getDefinitionByName(products[i].producticon+"Data") as Class;
// Create new BitmapData Instance From it
[Code]....
I get null in the trace. How do I make a dynamic class that I can refer to for this bitmap similar to how your reference a class from and embedded media?
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Mar 31, 2009
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?
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