How can I find a pixel position, based in its color, within a bitmapdata?Say, we have a path drawed (a movieclip), we make it a bitmapdata.The path´s color is red.How can I find a given pixel red, within that bitmapdata?
View 1 RepliesI have a ScrollPane and I want to get and set the scroll bars position (pixel position). For example, if the user changes the scroll bars position and then refreshes the page, we need to take the user at the same point where he was before refresh. For this I need to get the respective scroll bars positions before refresh and then set it to the saved position after load. I have got the positions by hPostion and vPosition but now when I try to save the values back to the same properties after refresh it doent work.
View 2 RepliesI have a MovieClip in the library exported for actionscript. How do i convert or attachMovie it to a BitmapData class so that i can manipulate its pixel data? I will need that so that i can distort the MovieClip.
View 3 RepliesI am wondering if there is any way to set the pixel colors exclusively to black and white (instead of gray) in a bitmapData.noise animation. The previous related thread is: [URL]..For the function:
function makeNoise():void { _bitmapData.noise(getTimer(), 100, 255, 7, true);
Is there any way to set the noise color pattern to black and white? In the scripting reference, it seems the choices are R||G||B||Alpha channels, so I am not sure if there is any way to combine these to get black and white only.
Having trouble trying to scroll BitmapData on a half pixel here is my original code
var speed:Number = 1;
_bitmapData.copyPixels(_backgroundParallax, _screenRect, _zeroPoint, null, null, true);
_backgroundParallax.copyPixels(_backgroundParallax, new Rectangle(0, 0, speed, _backgroundParallax.height), new Point(_backgroundParallax.width-speed,0), null, null, false);
_backgroundParallax.scroll( (speed*-1) , 0);
which works until i change the var speed to .5, which is because .scroll method is expecting int's so i replicated what scroll is doing to try and allow .5 pixels
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Using Actionscript 3 is there a way to search one bitmap for the coordinates matching pixels of another bitmap?
[URL]
Somehow you would have to loop through the bigger bitmap to find and the the pixel range that matches and return those coordinates. For example the Bitmap with the "E" is 250 pixels over and 14 pixels down in the bigger bitmap.
I am trying to make a so called pixel effect in witch I want to make a shape only from pixels that are positioned in some random place on the stage. And all these pixels move to a certain point and create that shape. I've been looking into BitmapData Class but I don't now if that is the best way to do it.
View 2 RepliesI have flex advancedDataGrid (could use dataGrid if that works better, though i like my meta-column headers), and i want to have a component popup on top of a selected row.
The problem is, i can figure out how to reference an actual rendered row of a datagrid (rather than an item of the dataprovider) in order to get its position on the screen.
how to access a "row" of a datagrid, or at least get its position?
How does one find the position of a child movieclip within a parent movieclip relative to the stage? Whenever I refer to the position of the target movieclip, it gives me a number of what I'm not quite sure it refers to. I want to know the position of a an object as it is seen drawn on the stage
View 5 RepliesI'm often finding a need to get a stage-relative position of objects in my game, which are often buried several layers deep as children of children of children, etc, often with differently scaled/moved/rotated parents. The position i want isn't quite relative to the stage, but a main holder object i have on it called lvlHolder (see code below). I wrote a function to deal with it that recurses up the display list, accounting for each object as it goes, to get a global position. It's worked so far, but one thing it doesn't account for is rotation. I'm finding a need for that now, and i'm not sure how to account for rotation of objects, to rotate offsets from them,
My function is below. how i should enhance it to accomodate for the rotation of each parent object? Also any tips on optimisation would be good, as i'm using this a LOT (roughly twice per frame, per object, for physics calculations) I'm also wondering, in similar situations i've seen something related to transform matrices used
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how do you find out in which position a certain value is in an array?
View 9 RepliesI'm trying to get the position of the mouse while it is stationary. For example, if the SWF loads and the mouse is already on the SWF, how can I detect it's position WITHOUT waiting for the user to move the mouse.
how to grab the mouse position when the mouse moves, just not how to obtain that info when it has not moved yet.
I have a pipe delimited string "Y|Y|Y|N|N". How can I find the position of first occurrence of N using code after processing the string.
View 4 RepliesI am trying to snapshot a movieclip at X and Y by WIDTH and HEIGHT. All is fine, it snapshots fine and gets the width and height, but I can't adjust the x and y position for it to begin the snapshot at. I tried using a Matrix and its Matrix.translate() method, I tried moving the scroll beneath the draw method line. I don't understand how to get this thing to move.
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I am looking for a fairly simple image comparison method in AS3. I have taken an image from a web cam (with no subject) passed it in to bitmap data, then a second image is taken (this time with a subject) to compare this data, from these two images I would like to create a mask from the pixels that match on both bitmaps. I have been scratching my head for a while, and I am not really making any progress. Could any one point me in the right direction for pixel comparison method, something like getPixel32()
View 2 RepliesI have a 100x100px image. I want to get 1 pixel vertical line from x- 1 to 100. How can I do that?
View 7 Repliesvar array1:Array = new Array();
var array2:Array = new Array();
var obj1:Object = new Object();
array1.push(obj1);
array2.push(obj1);
How can I do this what command should I use?
//obj1's position in array1
//result: 0
//obj1's position in array2
//result: 0
I'm trying to trace the path of an object by using setPixel on the object's position every frame in a BitmapData/Bitmap pairing. These pixels aren't showing up normally and I suspect I have a fundamental misunderstanding of the BitmapData class. Here's what I'm doing:
public var contrailBase:BitmapData;
public var contrail:Bitmap;
private var contrailColor:uint;[code].....
Using this code, the red pixels don't show up. If I initialize contrailBase to 0xFF000000 instead then I get a black screen on which the red pixels DO draw, but I need the bitmap to be transparent except for the contrail. What am I doing wrong?
I'm using Flash 8, with this code in the first frame:
import flash.display.BitmapData;
rissa._x=Stage.width/2;
rissa._y=Stage.height/2;[code].....
When I publish the file, I'm getting the following error message in the Output panel:
**Error** Scene=Scene 1, layer=Layer 2, frame=1:Line 7: The class or interface 'BitmapData.loadBitmap' could not be loaded.
var plaid:BitmapData.loadBitmap("plaid");
Total ActionScript Errors: 1 Reported Errors: 1
I am trying to use the reflect class from "http://pixelfumes.blogspot.com/2007/03/reflection-class-v3-with-source .html" but I keep getting this error:
ArgumentError: Error #2015: Invalid BitmapData.
at flash.display::BitmapData()
at Reflect()
at Site_fla::GalleryPage_29/loadThumbs()
at Site_fla::GalleryPage_29/sortXML()
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btw, first I used assigned thumbContainer as the mc argument (outside the loadThumbs() function) and it worked but not exactly what I wanted... because I thought it is supposed to update when the movieclip is animated but it actually didn't... when I use a scroller, only the thumbs that are first loaded to the stage get the reflection..
I've been using BitmapData.copyPixels() to draw graphics onto a canvas (Bitmap).I need to rotate the resulting graphics without the use of draw() because it's vastly slower.How can I rotate the target graphic? I'm assuming that there might be a formula or library that I can use which will first reorganize the pixels that make up a graphic based on an origin (point) and radians.I'm pretty certain that I'm not capable of creating such logic, so if there are any known libraries that do this, that would be awesome.I'd like to achieve something similar to XNA's SpriteBatch.Draw() method, which accepts rotation as its 5th argument.
View 3 Replieshow to use the bitmapData collision method. Now I'm trying to figure out if there is a way to see at what angle or coordinate of the bitmapData the collision happens? I need it in order to figure the accurate bounce angle after the collision occurs.
View 2 RepliesI'm currently working on a flash game and I need to know how to addChild a BitmapData or draw a BitmapData to screen. If I can't than how can I give a DisplayObject my BitmapData?
View 2 RepliesI've made a mobile version of my software, with low-res images and such, and I can now fully buffer all my content (including a 360 frame animation which is buffered to memory). Problem is, that everytime I update the view, more memory is used.When I write image = new BitmapData();, does it store the previously created BitmapData's in memory? Do I have to flush the memory somehow before I draw my second picture in BitmapData?Example:
ActionScript Code:
// In this example I draw using the same bitmapData several times, also
//overwriting the first image. Do I have to somehow delete the data first, to
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I am having an issue with using BitmapData.draw(stage). I am getting the following error:
SecurityError: Error #2123: Security sandbox violation: BitmapData.draw: file:///C|/Documents%20and%20Settings/bla...bla...bla.swf cannot access null. No policy files granted access. Here is a portion of my code:
var bd:BitmapData = new BitmapData(2800, 2100); bd.draw(stage);//this is where the error happens All of the files referenced (.xml/.jpg/.swf) are located in the same local folder as the main .swf. How do I get around this error? The main objective is to print the stage using PrintJob(). I am using Flash Professional CS5.5 and publishing to Flash 10.0/10.1. Let me know if I need to supply any more info.
The title might be a little misleading. Look at my code and I will explain
public static function loadTile(tileDir:String = "empty"):void
{
if(tileDir != "empty")
{
tPoint = new Point(0,0);
tRect = new Rectangle(0,0,30,30);
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I am trying to do tiling with sprites. I want my tiles to be interactive, so that is why I am using the sprite object instead of using regular bitMaps to represent my tiles. You might be wondering why I wouldnt just use graphics.beginBitmapFill(tImage); and graphics.drawRect(0, 0,tWidth ,tHeight ); to pick out the tiles I want to use. Well reason being is because it turns out that drawRect() first and second parameters actually alter the location of where the actual sprite sits at.
So if I set the x and y properties of the sprite to x = 20, and y = 20. then I set my drawRect(20,20). it actually adds an extra 20 pixels to my x and y coords of my sprite. And I know the reason why, I just need to know a better way.
I added a Menu_mc on my stage. Initially, this should be at the center of the stage and when I click on it, it will tween on the upper left corner of the browser. However, when I resize the browser, the Menu_mc goes back to the center of the screen.
I have tried separating a different actionscript file where it is specifically for initialization of the object and another one for resizing. And then when I call it on my main AS file it goes like this:
Code:
// Add the symbols to stage
var Menu_mc = new Menu_MC();
addChild(Menu_mc);
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But it seems futile.
I am using a ScrollPane in my application(viz., instance name is: myScrollPane). When I view the contents of the ScrollPane, it shows them perfectly. My issue is: When I try to view data present inside the ScrollPane, if I move the Vertical-ScrollBar of the ScrollPane to middle(or somewhere from top to down) and then click on Submit button(viz., instance name is: submit_btn), then its Vertical ScrollPosition must be reset from middle(or any position where we leave it before) to top(or initial position). Hence, I need to move the Vertical ScrollPosition of ScrollPane to top (or) initial position. Everytime, I need to refresh the VerticalScrollBar Position when I click on the submit button. How to do it?
View 1 Replieshow to make an actionscript to move punto_mc from current position to random position after release, and then from this new position to mevo to another randon position after release?
View 2 RepliesI have simple image gallery, where images are placed one next to another and the mask is revealing only one of them. Now I want to tween position of the images, but when I do that the mask is "traveling" alongside with the images..
View 4 Replies