 
     private var _motionPaths:Array;
     /**
-     * An array of SimpleMotionPath objects, each of which holds the
-     * name of the property being animated and the values that the property
-     * will take on during the animation.
+     *  @copy spark.effects.Animate#motionPaths
      *  
      *  @langversion 3.0
      *  @playerversion Flash 10

    }

    /**
     * This function is called by subclasses during the play() function
     * to add an animation to the current set of <code>motionPaths</code>.
     * The animation will be set up on the named constraint if the constraint
     * is in the <code>propertyChanges</code> array (which is only true during
     * transitions for properties/styles exposed by the effect) and the
     * value of that constraint is different between the start and end states.
     */ 
    protected function setupConstraintAnimation(constraintName:String):void
    {

    }
    
    /**
     *  @private
     *  Called internally to handle update events for the animation.
     *  If you override this method, ensure that you call the super method.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
