ActionScript 3.0 :: Pixel Have Changed To Get The Percentage Of The Complete Erasing?
Feb 2, 2010
I'm working with Threshold on BitmapData class. I need the threshold return the modified pixel (the pixels match with the equation).I need to detect how many pixel have changed to get the percentage of the complete erasing! I did it with getPixel32/setPixel32 but it's faster with threshold (i'm doing it on 15 bitmapdata at the same time)
pixelChanged += bmp.bitmapData.threshold(bmpBrush, bmpBrush.rect, new Point(this.stage.mouseX, this.stage.mouseY), ">", 0);
so, each pixel bigger than 0 should match this equation ... and they will be set to 0 after that (default color value). Next time, because they are 0, pixels are not suppose to change again because 0 is not bigger than 0 ! But it still return me a value, like if the pixel have changed! I've tried with different combinaison of mask/threshold .I join a sample of my problem (drag the triangle and check the output window ... the number increase even if the pixel is transparent 0x00000000)
I've got to build a kids game at the moment for my school, and I was planning to have a sort of archaeological dig, with the kids required to rub the screen (it's for a touch-screen) to "un-earth" the bones underneath.I was thinking of either erasing an overlay and checking for a hitTest between the two objects, or coloring in with a line or something.Is it possible to color something in and check when the object has been completely colored? or possible to erase an overlying object? and if so, can you point me in the direction of a tutorial or a quick explanation?
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()
I made a test where I download a file using URLLoader - something like this:
[Code]....
in the middle of the downloading process I physically disconnect the internet connection. the download stalls - but after aproximately 30 seconds downloadSuccessful is invoked, although only half of the data was downloaded. how can I make sure that the data to be downloaded is complete and correct?
I am loading in binary files with the url class which can be quite large 10mb + and it works fine on my server but another server I am testing on it can sometimes not work. Sometimes it will not load the file and other times it will only load about 20% and it throw a complete event??? Then of course other times it works fine. This server is https maybe that has something to do this it?
I have a fully working flash application, made in as3. Now i dynamicly added a movieclip and i would like to be able to erase that movieclip with a eraser of some sort, my goal is to be able pick up a sponge with the mouse and then start dragging over the movieclip and erasing the parts where i dragged over it.
I tried to erase whatever was drawn on the stage by using a similar function in a recent previous post but I'm not getting it.when I try to use it an error says that this is no longer supported. I tried addChildAt() and inserted different Num but it only erased everything including my button.the current code is:
homeBg = new HomeBg(); homeMask = new HomeDrawBg(); addChild(homeBg); addChild(homeMask);
I allready instantiated them in the beginning of the document. But my problem is the following. the homeBg layer is a image, the homeMask layer is the same image but it has a pencil scetch look. What i want is that wherever i move my mouse, the homemask layer should be erased so the bottom layer becomes visible(only where the mask is erased). So how can i tell the mask layer to erase itself if the mouse is over it?
I'm attempting to create a dry erase board style animation effect in my flash movie where I'm erasing the text, like a dry erase board type effect. I've tried doing a frame by frame mask animation and it's not turning out very well. Has anyone attempted this before? Are there any tutorials or maybe after effects > flash tricks?
I'm in need, again, of some assistance. I'm making a game with 2 pictures. and the concept is built on that you erase part of the top-bitmap to see the bitmap under.How can I accomplish this?I tried to wrap my head around the bitmaps and the draw and the FillRect but can't get it to work completely.Basically I want 2 bitmaps, and a cursor which erases parts of the top one to show the one underneath.
I am trying to erase one movieclip from another using the blendmode="erase" setting, but can only get it to work on the stage as the parent. This means it erases a hole through everything! The attachmovie also doesn't seem to work as I was expecting and I was hoping that when you drag the movieclip, the attached clip would move with it? If you check out the FLA [URL] you can see whats happening right now and what I want to achieve (diagrams provided in FLA).
I'm trying to create sort of an eraser to remove sections of a bitmap on stage.
I have achieved this by creating a MovieClip in flash that is a circle and exporting it as a Class called Hole.
Now I use this MovieClip to erase a circle section of the image using the following.
var mat = new Matrix(); var ct = new ColorTransform(); var hole = new Hole(); mat.translate(x,y); image.draw(hole, mat, ct, "erase");
Now what im trying to do is scale the size of the circle depending on a certain variable but no matter what I try the scale doesn't seem to change and. The size seems to stay the same as I drew it in Flash. I tried adding the following line
hole.width = hole.height = size;
I even created a class file called Hole and the size as a parameter
var hole = new Hole(200);
This didn't work either it still appeared to have the same size. I have even tried altering the scaleX and Y values with no success.
for the past couple of weeks I've been learning AS3, and for a school project I'm doing a remake of the popular DOS game Liero. Everything is working fine, I got a layer of dirt that I am shooting away, but the problem is that after a few hundred bullets, the game starts to lag heavily whenever a shot is fired.I'm using a simple bitmap and a brush to erase the parts where the bullets hit.
// Drawing stage bmap = new BitmapData(1100,800, true, 0); dispBmp = new Bitmap(bmap);
I have two layers namely topLayer_mc and bottomLayer_mc. The actual vector drawing is drawn on the top layer and onmouseUp of the tool, a bitmap copy of the vector graphics on the top layer is taken and added as a bitmap to the bottom layer. The top layer is cleared subsequently. It is working for the pencil tool.Now I need to create an eraser tool. This is where things get tricky. In the application there is an option to save the image as png, so alpha has top be preserved. So the coventional method of draw a brush using the vector and using the draw method of bitmap will not work. Of course, on a visual level it would work if the brush drawn using the vector is to have the same color as that of the background.
What I need is to excatly erase the pixels.Now I have created a brush tool using the conventional technique and clearing is possible but what I need is to exactly erase the pixels. Is there some technique to draw this ? This is the code that I am using: I have also uploaded the swf and source code, When trying out, please draw all over the stage using the pencil (press Pencil button and start drawing)The source fla is also provided.
I have the raster of dots on white background. I would like it when I DragOver each dot it becomes white so it looks like you are actually drawing white line by erasing the dots. Ive somehow found the way how to do it by making it transparent when I rollover. But it doesnt work with dragover. How to do it only when I hold down the mouse button and drag my mouse over the dots?
This is the script assigned to MC with one black dot (I copied this MC with one dot into another MC and multiplied it to have the raster): this.onRollOver = function () { this._alpha = 0; } this.onPress = function () { this._alpha = 50; }
I've tried also this, but it doesn't work: var erasepoint = false; this.onMouseDown = function(){erasepoint = true;} this.onMouseUp = function(){erasepoint = false;} this.onRollOver = function () { if(erasepoint){ this._alpha = 0; }}
What (if any) is the actual differance between removeMovieClip() and unloadMovie() for use in erasing duplicated movie clips (using duplicateMovieClip() )? I was looking over some of my code and noticed I used both without much rhyme or reason as to why one over the other.
I am using Actionscript 3 to dynamically add text the screen (stage) with the TextField command. The problem is when I navigate to another screen (frame), all the text that was added stays on the screen.
how to make the text for only the frame that you want it to show up on?
Ok so i'm trying to create a percentage bar that automaticlly adjust depending on data pulled from a XML file. and I'm currently have some problems with the data getting to the second frame.. here is what I havethe xml file code:
how to make a my swf appaer as a percentage of the screen not a defined size and I can't seem to work it out. I nee something to appear on screen at a resonable size. 640 by 480 is too big for certain users and width="480" height="360" is too small for others.
How can I get the percentage of xml file loaded. I want to show a preloader and animate it according to the percentage of loaded xml file. I tried using progress event but it gets called only once.
I'm currently developing a Flex application with an accordion containing 2 canvas: one of them containing a DataGrid and the other one a form.When the user clicks on one of the DataGrid's rows, it opens the accordion on the second (form) canvas. However, I'd like to open the second part of the accordion only by half, so they can still see the data in de datagrid.
I need to generate 238 numbers, with a range of 1-4, but I want to weight them, so there's say 35% chance of getting 3, 28% chance of getting 2, 18% chance of getting 4m, and 19% chance of getting 1.
i want to play a cardiogram (some movement) ant to see percentage preloader of swf file in the same time and then loading is compleated see the swf which was loaded i can't insert a preloader.
