AS3 Polar Coordinates and Radians

/flash/radians.swf

Many times I’ve set up interfaces where I need to place different objects equidistant around a central object. The solution to this problem is to first calculate the angle of each object by converting Radians to Degrees. This can be expressed by the following formula

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So, you simply need to loop through your collection of objects and assign each a different angle. After that you plug that angle into a new Polar Point.

for(var i=0;i

Here’s the complete source: radians.zip

package
{
        import flash.ui.*;
        import flash.display.*;
        import flash.events.*;
        import flash.geom.*;

        public class Main extends Sprite
        {

                /*
                ========================================================
                | Private Variables                         | Data Type
                ========================================================
                */

                private var array:Array = new Array()
                private var circumference:int;

                /*
                ========================================================
                | Constructor
                ========================================================
                */

                public function Main ()
                {
                        stage.align = StageAlign.TOP_LEFT;

                        // make some balls
                        addParticle( 100 )

                        menu.txtParticles.text = 'Particles: 100';

                        stage.addEventListener( Event.ENTER_FRAME, runParticle )

                        menu.slideCircumference.addEventListener( Event.CHANGE, changeCircumference );
                        menu.particles.addEventListener( Event.CHANGE, changeParticles );

                }

                private function addParticle( num )
                {
                        stage.removeEventListener( Event.ENTER_FRAME, runParticle )

                        var tot:Number = array.length

                        // kill mc's
                        for( var t=0;t

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