topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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lib-flex-animation-code-03-com-friendsofed-isometric-IsoUtils.ax

lib-flex-animation-code-03-com-friendsofed-isometric-IsoUtils.ax (swf ) [ flash ] flex 


  package com.friendsofed.isometric
  {
          import flash.geom.Point;
          
          public class @ax-lib-flex-animation-code-03-com-friendsofed-isometric-IsoUtils
          {
                  // a more accurate version of 1.2247...
                  public static const Y_CORRECT:Number = Math.cos(-Math.PI / 6) * Math.SQRT2;
Converts a 3D point in isometric space to a 2D screen position. @arg pos the 3D point. 

  
                  public static function isoToScreen(pos:Point3D):Point
                  {
                          var screenX:Number = pos.x - pos.z;
                          var screenY:Number = pos.y * Y_CORRECT + (pos.x + pos.z) * .5;
                          return new Point(screenX, screenY);
                  }
Converts a 2D screen position to a 3D point in isometric space, assuming y = 0. @arg point the 2D point. 

  
                  public static function screenToIso(point:Point):Point3D
                  {
                          var xpos:Number = point.y + point.x * .5;
                          var ypos:Number = 0;
                          var zpos:Number = point.y - point.x * .5;
                          return new Point3D(xpos, ypos, zpos);
                  }
                  
          }
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 18/6/2009

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