Is there a way to apply a colorTransform to a BitmapData in a circle rather than in a rectangle?
Instead of erasing rectangular parts of an image by reducing the alpha channel as in the code below, I'd like to do it in circles.[code]...
I have a BitmapData with 2 red circles. I want to find the rectangle area or each circle. If i use [B]getColorBoundsRect[/B] I get the smallest area enclosed by the 2 circles. How can i go about this and get individual area of the circles?
View 1 RepliesI draw a rectangle i should see a little bold circle to indicate a perfect rectangle, I seemed to lost mine, can somebody please tell me how to get it back!
View 2 RepliesI'm trying to figure out how to apply a colorTransform to certain indecies of an array. So far, I've had no success. I think the issue I'm having is with using the proper syntax... I've tried
PHP Code:
nArray[0].transform.colorTransform = 0x000000;
b0.transform.colorTransform = 0x000000;
etc.
I've got movie clip on stage that has shadow filter. When I apply ColorTransform to that movie clip, the shadow removes.
[Code]...
How to save shadow?
most efficient way to test for a collision between a circle and a rectangle?
View 3 RepliesI have a paint brush that has a stroke of a circle i wanted to replaced it with rectangle instead here is my code.
Code:
private function drawCircle():Void
{
var r:Number = 40;
var xcenter:Number = _xmouse;
[code]....
I would like to fade in and out and object with the colorTransform-method. When I apply the colorTransform to my object it does fade out the thing but not fade in. At first I set the alpha of the bitmapData to 0 (for the fade in-effect). After applying the colorTransform it does nothing. No fade in. Otherwise when I set the alpha of the bitmapData to 100 and let it fade out it works.
[Code]....
I've drawn a red rectangle which sits on my black stage. I've applied a white glow effect to the rectangle[code]...
View 3 RepliesI'm a newbie in flash.I want to click a circle to show a rectangle surrounding it,and click any other places in this stage to hide this rectangle,how to implement this event?
View 1 RepliesIn AS3 is there an easy way for collisions to take place between a moving circle and a rectangle object. A moving circle has a direction and you need to know how it collides with an object rather than knowing it just hits. In .net you use a points test where you test several points around a circle to see what hits an object and then you can work out what direction it will bounce off.
View 2 RepliesI'm using following code:
ActionScript Code:
var bd:BitmapData = new BitmapData(stage.stageWidth, stage.stageHeight);
bd.draw(stage, null, null, null, new Rectangle(tmpX - (tmpW/2), tmpY - (tmpH/2), tmpW,
[code]....
I'm trying to take a 'snapshot' of a movieclip that i've got on the stage with "BitmapData" and then starting a "draw()" command on it. I'm able to get it drawing.. however.. it only takes the things from (0,0).( the upper left corner of the movieclip. Doing a trace on "BitmapData.rectangle" gives me it's X and Y coordinates .. and it's width and height..
How do I change the X and Y locations of the BitmapData for it to start the drawing from? As I have some stuff on the negative side of x.
Is there a way to make part of a movieclip transparent? Using actionscript that is.I want to create 'holes' in a movieclip so I can see through it.If needed I guess I can change the movieclip into a sprite if that makes it easier, but I am unfamiliar with flash so I need to learn the proper way to do such a thing.
View 3 RepliesI was working on some blitting code today and after profiling it found that I was creating 1000s of new rectangles. I was shocked because I only had 1 or 2 different new Rectangle() calls or I was using the .rect property of BitmapData.
I started commenting out huge swathes of code until I was left with this code in my sprite class:
canvas.bitmapData.copyPixels(_bitmapData, _bitmapData.rect, destination, null, null, true);
I cached the result of _bitmapData.rect at object creation and my thousand of new rectangle calls were suddenly gone from the profiler.
Why the heck would BitmapData.rect create a new rectangle? Is there a way to check the core libraries or something and confirm this is true?
After seeing the I've been told that movieclips aren't suited for games, what do you use? thread, I thought I would try to incorporate the approach into a game I'm currently programming to make it a little less processor intensive.
I have a giant movieclip of a football field, of which only 5-10% is shown at any given time. I'm guessing that flash still has to make calculations for the other 90-95% of the field every frame, even though it's of no use. From what I understand (not much), copyPixels seems like the perfect candidate for such a situation.
It seems simple, but I'm having trouble actually implementing it, and I'm not sure which actions are needed and what might be introducing unnecessary work. I have a movieclip (mc_field, exported for as), but if it would save the processor some effort,I could easily save this as a bitmap and export that for actionscript. The width and height of the final product (bitmap/BitmapData) will be Stage.width, Stage. height,respectively,and I can handle making the calculations of the x,y coordinates of the rectangle cropping (which part of the source bitmap I want to crop).I'm sure it's only 3 lines of code, and I know that there are a few examples online, but for some reason.
Say, for frame one, I want to take the field (either mc_field or bm_field) and copy 500px x 300px, starting at 140,230 from the source bitmap to mc_container.Then, for frame two, I want to copy 500px x 300px starting at 240,540 from the source bitmap to mc_container.
I am looking for the most efficient way to create a circle mask on a BitmapData, so that everything inside the circle is visible and everything outside the circle is black. Here is my current code:
[Code]...
As the radius of this circle is going to be changing rapidly, storing the mask would be useless. how to make this more efficient, preferably keeping to methods that can use GPU accleration?
I want to make an editor like this site. [URL] If you browse this link you will find "Button. If you press this button you will navigate to a editor to design your layout. After draw a rectangle or circle or line you can resize that or can rotate that. When you finish if press the "you will back to the previous page where your desinged layout display. If you press the "" again then you will navigate the editor with the previously designed layout. I want to make a site like this. I want to use the flash cs4 to make the editor. Anybody knows how to draw a rectangle or circle shape with mouse and how to scale by setting the point and how to rotate by setting the rotation point also by using flash cs4 and as3?.
View 3 RepliesI need to add "_myThumb" to 4 container MovieClips. The problem is that it's only working for 1 MovieClip. What do I need to change?
var _myThumb:Bitmap;
var _myThumbData:BitmapData;
function createThumbs()
[code]......
Error #2030: End of file was encountered.
This method is not working
I am using it like this
var ba:ByteArray = new ByteArray();
ba = bmd.getPixels(bmd.rect);
bmd.setPixels(srcRect, ba);
bm.bitmapData = bmd;
img.source = bm;
Photoshop and Fireworks both have some nice filters. When you put one bitmap over the other, the first bitmap can act as filter. For example, the white pixels of the top bitmap lighten the pixels of the bottom bitmap. Is there any way to apply this in as3? What I am trying to accomplish: I have a large single-color bitmapdata object. I want to overlay perlin noise and lighten/darken the single-color bitmap to give it some random/natural look.
View 1 RepliesFor those of you still with me, I am tasked with making some scrollable content in Flash. Load in a TextFile using LoadURL(), then display it. To get the text, we've written our own class TextFieldExtended, which is basically just there to give the textfile location to the constructor and then have the class do the various steps of getting it and loading it for you.So I needed to get a Scrollbar, which I got hereThe thing is, it works with Sprites.After trying to get it to accept TextFieldExtended, I bumped into a block, since the scrollbar relied heavily on a Sprite property that TextFieldExtended didn't have or could have.
So I tried adding the TextFieldExtended instance to a Sprite instance using addchild.A problem occurs here that I do not know how to handle. It seems that a Rectangle is drawn and the Text is drawn on that. I say this because the scrollbar moves the Rectangle up and down a bit, but the text doesn't scroll, just the Rectangle it is positioned in and the text then moves along with it.My question: can this be fixed, or is does this implementation of scrollbars need a lot of adaptations before this is possible?
I'm developing a game atm, and I need some help on the mathematics/coding of colliding circles (and their change in x/y speed). What i need to know is how to calculate the direction and speed a circle has after colliding with a static (non-moving) circle. I know how to detect a collision between the two, but I'm not sure about the maths I need to give the circle the right speed and direction after the collision
If i do know how far away the two circle-points (in the middle of each) are to each other (in both x and y coords) would it be easy for me to find the new speed and direction of the large circle in the example above? I know that I somehow should use the angles to pretend the circle hits a flat "wall" (as it only hits one point), and then calculate the new speed/direction. My only problem is that I'm not sure how to decide the angle of this flat "wall" and how x and y speeds should change when colliding with a wall that is angled. Does anyone here have any insight, links or tips on how I can du this?
i want to make one circle follow the mouse cursor, inside another circle. Similar to an eye looking at the cursor. Ive attached an example.
View 4 RepliesI have text in a dynamic field showing up as circle. I want to say if circle shows up change it to cercle (french).
[Code]...
What i need to know is how to calculate the direction and speed a circle has after colliding with a static (non-moving) circle. I know how to detect a collision between the two, but I'm not sure about the maths I need to give the circle the right speed and direction after the collision.If i do know how far away the two circle-points (in the middle of each) are to each other (in both x and y coords) would it be easy for me to find the new speed and direction of the large circle in the example above? I know that I somehow should use the angles to pretend the circle hits a flat "wall" (as it only hits one point), and then calculate the new speed/direction. My only problem is that I'm not sure how to decide the angle of this flat "wall" and how x and y speeds should change when colliding with a wall that is angled.
View 6 RepliesI`m working on a app that you can draw lines.....like circles, rectangles... my problem is when a user draw a circle for example....i wanna be able to paint (change color) inside of this circle. I`ve tried working on Shapes with cacheAsBitmap = true and Bitmaps with BitmapData but it doesn`t seens to work.
View 4 RepliesI want to create circle, and put 8 points on it. So, user can drag each point in order to change it's shape.
Is there any way to do this in flash?
I have some following code:
Ref. - How to draw a continuous curved line from 3 given points at a time
package{import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.geom.Point;
[Code].....
So, can anyone convert these three point curve line to 8 points circle?
I have to draw a circle using action script. The Circle Diameter has to be controlled by a button.
View 0 RepliesTrying to do circle circle collisions via math which I'm really having trouble with. One circle (player) just moves from keyboard. The ball reacts to the player. All the code shown is in my players class and I passed in a reference to the ball.
On my enterframe I have:
Code:
var xmov1 = xSpeed;
var ymov1 = ySpeed;
var xmov2 = ballRef.xSpeed;
var ymov2 = ballRef.ySpeed;
[code]....
Perhaps I'll go with a box2d equivalent instead of trying out my own physics shenanigans.
