ActionScript 3.0 :: Draw A Line That Is A Radius Of A Circle?
Apr 23, 2010
I want to draw a circle on the scrren of a random x,y position and a random radius. Then, I would like to draw a line that starts at the center of the circle and ends at the spot where the circle ends, at its perimeter. All I have been capable of doing by myself was creating that circle and set the drawing position with the moveTo function to its center, but I don't know how to calculate the length of the radius, so I have the coordinates for the lineTo function.
I was wondering if anyone could tell me how and if it is possible to draw a line/ circle and place a movie clip on it and get the movie clip to go round the circle by placing the left and right arrow keys on the keyboard.
This should be a bit of simple geometry: How do I calculate the points to draw the lines in the code below so that it makes a 2D cone or wedge shape?
import flash.geom.Point;
//draw circle var mc=new Sprite()[code]...........
UPDATE:I should have mentioned my aim is not to draw a wedge shape, but to draw a line from a random point to the edge of an existing circle.If you're more comfortable with algebra than actionscript,
I am no master of Flash. I was wondering if there was a way to tween the radius of a circle to be placed on the circumference of the circle. I want a student to see the radius being transformed to a curve and then placed on the circle. I will be teaching my students the concept of a radian.
I`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.
I am new to Flash & ActionScript 3.0 platform.My issue is: I am loading an image onto the stage dynamically using Loader & URLRequest classes. Whenever I click on existing circle[which gets created when I click on the loaded image, which is of Sprite type], the size of the circle should be increased to some extent(let us assume, basically circle(Sprite)is created with radius=3 when we click on the image, but, when we click on the created circle, it's radius must be increased to 5). It is the requirement.
So, for this to implement, Do we have any property or method to change the Sprite object's size directly?
I need to allow the user to create a circle with a specific radius and colour in a certain frame (lets say frame 2), and then add that circle as a symbol to a different frame (say frame 1). First off, im simply creating a circle.. This is what ive got in frame 2 so far:
Im probably overlooking something simple, but when I try to draw a rectangle Flash is automatically applying a corner radius. I've tried resetting the options in the Properties Inspector, which resets to the default, but soon as a draw a shape it goes right back to a random radius.
I've got two concentric circles with their centers at (centerX,centerY). The inner circle has a radius of 100 and the outer circle has a radius of 400. If take a point on the circumference of the inner circle, I can draw a line from the center to that point. Let's call that point x1,y1). I now want to continue that radius out to the outer concentric circle and calculate the position of that outer point (x2,y2).
I'm adding a 3px 'dot' just to show where x1, y1 is on the screen. (Subquestion: I can't see it...not sure why.)This is what I'm trying:
var x1:Number = 100; var y1:Number = 50; var x2:Number;[code].............
I need to be able to draw a thick patterend line between 2 points in AS3, I can't use the draw API because it doesn't all me to actually put detail (pattern etc) into the thickness of the line, I thought about perhaps using the line to create a bitmap version and then using that as a mask, but I remember many years ago seeing some examples that use a movieclip as a source for a line.
I'm trying to produce a game that on mouse down a dotted line (or just a line) gets dragged out following the mouse until it is realized then it disappears.
I want to create a line tool exactly like flash line tool. But the code that I am using shows the line when we release the mouse button. How can I show the lines while it is drawing[code]...
I'm making a very simple game that lets you draw a curve by hand (using lineTo to the mouse position on mousemove) but now, I need to check wether the line intersects wiith another part of the same line (e.g. a loop)
I first used an onrollover command, and that worked, but not always because the mouse moved too fast (same with hittest with mouse). Then I pre-drawed the line in another mc, used hittest on it, and if it wasn't intersecting, draw it in the real mc. But that didn't work because it used the bounds to test. I guess the best way is to use some mathematical formula, but that would mean I have to save all my coordinates in an array..
I am making a simple drawing application, and i have come across a problem. Im not very good with trig at all so i got the code for drawing a circle and customised it and it goes a little dodgy. Could someone tell me why it is happening, and how i should fix it?
I need to draw a circle like a pie chart. But I need the circle to only go around about 2/3's or whatever I choose. I've tried the 'curveTo' method but that didn't work. It makes the circle more bulged and not round like a circle.how to make a perfect circle with a slice taken out?
using action script how to draw a semi circle...i need to add tha semicircle in another circle the circle looks like this ![alt text][1] how to draw a semi circle inside that circle
i do not want to draw a circle on the same layer the background is. So how can i separate background layer and drawing layer? using graphics.drawCircle to draw circle
i have the custom flv player which reads an XmL and draws circles on Flv video. Postion and time is specified in the XML. I did calculation with as3 getTimer() function. It works fine, no matter how long u pause and then play again. Circles are shown at right time.Now i have two problems
1- How getTimer can be reset?? it is required when user is allowed to play another swf..
2- Is there any other way besides getTimer calculation. I am not using Timer Class as it is Dependant on Frame-Script Execution time and may yield wrong result so this is not as accurate as getTimer() function.
3- As i am using Custom Slider , so i have to do calculations each time when user click or drag slider w.r.t getTimer() function and then subtracts seconds and all that. but again it goes very hard when user plays another swf as my calculations are based on getTimer() Funtion.
I have a requirement wherien a semi circle has to be drawn. The circle radius can be chosen/varied by the user. How can i do it dynamicaly using action script.
This code is to be the animation that shows how much time is left before a specific event fires off. I am struggling with the Math though. How can I calculate how often to have a Timer function fire to draw a complete circle in 7 seconds? (It is 7 for now but may change so it would be nice to have the value be calculated).This code is all in the document class: [URL]
I need to make a circle with a brush tool so that it looks like a child draws it. If I make a dot with the brush tool on the first frame and a circle on the 15th frame and then create shape tween between those frames it looks stupid, like the circle grows itself. Is there any possibility of making such a thing except for drawing it per frame?
I draw a circle in authoring flash or in as3 and when i test it in flash ;it looks ok but when i doubleclik the swf in flashplayer i get an oval instaed of a circle!!!
I need draw rectangle with two circle holes inside. The problem is in circles interception. I want them to join together and cut from background, but they seems to be XORed:
here getCirclePath returns object with points to draw polygon which looks like circle. Also I tried different combinations of GraphicsPathWinding constants, but no luck.
how to draw two intersecting circle holes in graphics?
