Thanks man, you just changed my world.
On Tue, Mar 17, 2009 at 10:26 AM, Merrill, Jason <
[email protected]> wrote:
> >> I have the angle (say 0 degrees).
> >>The length would then be pixels from the
> >>center (ie. radius)?
>
> Yes, radius is pixel distance from starting point (in your case, the center
> point of the circle). Then you just need to convert angle to radians and
> you're good to go.
>
> var cartesianPoint:Point = Point.polar(len, angleInRadians);
>
> Here are some handy methods for you from one of my extended math classes:
>
> public static function polarToCartesian(distance:Number,
> degrees:Number):Point
> {
> var radians:Number = (degrees * Math.PI) / 180;
> return Point.polar(distance, radians);
> }
>
> public static function degreesToRadians(degrees:Number):Number
> {
> return (degrees * Math.PI)/180;
> }
>
> public static function radiansToDegrees(radians:Number):Number
> {
> return (radians*180)/Math.PI;
> }
>
> public static function cartesianAngle(fromPoint:Point,
> toPoint:Point):Number
> {
> var radians:Number = Math.atan2(toPoint.y-fromPoint.y,
> toPoint.x-fromPoint.x);
> var backAzimuthDegrees:Number =
> MathTranslation.radiansToDegrees(radians);
> return MathTranslation.getBackAzimuth(backAzimuthDegrees);
> }
>
> public static function getBackAzimuth(angle:Number):Number
> {
> var backAzimuth:Number;
> if(angle < 180)
> {
> var tempNeg:Number = angle-180;
> backAzimuth = tempNeg + 360;
> }
> else
> {
> backAzimuth = angle-180;
> }
> return backAzimuth;
> }
>
> Also, see this article:
>
>
> http://livedocs.adobe.com/flash/9.0/main/wwhelp/wwhimpl/common/html/wwhelp.htm?context=LiveDocs_Parts&file=00002060.html
>
>
> Jason Merrill
>
> Bank of America | Learning Performance Solutions Instructional
> Technology & Media
>
> Monthly meetings on the Adobe Flash platform for rich media experiences -
> join the Bank of America Flash Platform Community
>
>
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