ActionScript 3.0 :: A Perfect Half Circle Using Only The Drawing API?
Dec 17, 2008
any techniques they use to draw a perfect half circle?
I've seen the curveTo() method, and I cannot seem to make it come out with anywhere nearly good enough results. It always looks like half of a skewed ellipse.
I don't *want* to use a mask -- since there will be other drawings on this same Sprite that I do not want masked.
To be even more picky -- I don't *want* to create the half circle in another Sprite and add that to my original drawing.
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Here I what i need is : Start drawing first circle and when first circle is on half way, Start second circle.same way second and third circles. and after completing 3 circles, just gotoAndPlay 2nd Frame .
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Feb 10, 2009
I have tried to draw a circle using drawing API curveTo function. But the result is not a perfect circle. Flash documents also suggest this method. Check this link >> This is the code I have used to make a circle of radius R and the registration point of circle movie clip is at the center.
[Code]...
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Feb 18, 2009
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Oct 24, 2010
I'm working on a project for a client, they want a simple drawing api which requests the user to draw a circle, or a shape on screen. The circle is then analyzed and a Score/Percentage of correction is returned. The drawing I have covered, how to assess the drawn circle against a perfect circle?
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Nov 3, 2010
This draws almost perfect circle:
ActionScript Code:
var _angle:Number = 0;
var _speed:Number = .1;
var _radius:Number = 100;
[code]...
but...... if I wanted the circle to be drawn faster and change _speed to lets say .7 the circle becomes a polygon. How to get the circle to be drawn fast so it looks like a circle?
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I'm using flex sdk and trying to draw primitive geometry figures, what is wrong in following code? i tried without the trigger(placing) of button, but did not work.
<mx:Script>
import flash.display.Sprite;
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[code]....
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I need to draw a circle in certain amount of time. I found this code but it uses an enter frame. Is there way this could be written so it can be controlled by time?
Code:
var speed:Number = 0.05;
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var angle:Number = 0;
var xpos:Number;
var ypos:Number;
[Code] .....
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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.
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Mar 16, 2012
I 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?
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Trying 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.
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Feb 18, 2010
I have a simple three ring animation where the three rings fade in and out.On the stage the rings are a perfect circle, in the publish preview they look fine, but once I publish the SWF, all of the sudden the rings are not perfectly round anymore.
They are almost perfect but right at the top and bottom there is just a small portion which has sort of "flattened out"...
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