Changing the Registration point via AS3 . how?

Question

hello,
is it posseple to change the Registration point via AS3 ?
Best Regards,
Crimson

Answer 1

The Attach Code window isn't working for me on this so I
pasted the code into the message. Hope the formatting remains
reasonable.
public class HomePage extends MovieClip {
public var frenchieReal:Swimmer; //Swimmer extends
MovieClip; contains image of French Angel
public var frenchie:Sprite; //To offset regisration point of
frenchieReal
public function loadStage() {
var timer:Timer;
var wayPoints:Array;
//Establish timer for swimmers
timer = new Timer(100, 0);
//Create new swimmer supplying: image path, width, heigth,
and initial x and y location
frenchieReal = new Swimmer("Photoshop/oceanswimmer.png", 57,
41, -24, -28);
frenchie = new Sprite();
frenchie.x = 244;
frenchie.y = 532;
this.addChild(frenchie);
frenchie.addChild(frenchieReal);
frenchieReal.setTimerListener(timer);
//Set waypoints for swimmers
wayPoints = [[230, 530],
[240, 520],
[250, 500],
[260, 480],
[298, 480],
[358, 540],
[368, 544],
[388, 520],
[398, 495],
[404, 475],
[420, 500],
[458, 545],
[528, 550]];
frenchieReal.setPath(wayPoints);
package {
import flash.display.MovieClip;
import flash.events.*;
import flash.utils.Timer;
import flash.net.*;
import flash.display.*;
public class Swimmer extends MovieClip {
private var path:Array;
private var pathLength:uint;
private var pathLocation:int;
private var loader:Loader;
private var intercept:int;
public function Swimmer(imagePath:String, w:uint, h:uint,
xx:uint, yy:uint) {
var urlRequest:URLRequest;
this.x = xx; //Transaltion offsets for image MovieClip (eg,
-24 and -28)
this.y = yy; //Image is visible if these two values are
nonnegative
this.loader = new Loader();
this.addChild(this.loader);
urlRequest = new URLRequest(imagePath);
if (urlRequest != null) this.loader.load(urlRequest);
//Sets an array of waypoints
public function setPath(p:Array) {
this.path = p;
this.pathLength = p.length;
this.pathLocation = 1;
this.parent.x = this.path[0][0];
this.parent.y = this.path[0][1];
this.intercept = -this.parent.y;
public function setTimerListener(t:Timer):void {
t.addEventListener(TimerEvent.TIMER, timerListener);
//this.parent in timerListener is the Sprite object to which
image MovieClip is parented
function timerListener(e:TimerEvent):void {
var i:int;
var iMinus1:int;
var xx:int;
var y1:int;
var y2:int;
var rise:int;
var run:int;
var rotationAngle:int;
if (this.path != null) {
//Move to next segment?
if (this.parent.x >= this.path[this.pathLocation][0]) {
this.pathLocation++;
//Go back to first segment?
if (this.pathLocation == this.pathLength) {
this.pathLocation = 1;
this.parent.x = this.path[0][0];
this.parent.y = this.path[0][1];
this.intercept = -this.parent.y; //Minus y to translate
everything to lower quadrant
//y = ax + b
//y = ((path
[1] - path[i-1][1]) / (path[0] - path[i-1][0])) * this.x +
path[i-1][1]
i = this.pathLocation;
iMinus1 = i - 1;
this.parent.x += 2;
xx = this.parent.x - this.path[iMinus1][0];
y1 = -this.path[iMinus1][1];
y2 = -this.path
[1];
rise = y2 - y1;
run = this.path[0] - this.path[iMinus1][0];
this.parent.y = ((y2 - y1) / (this.path
[0] - this.path[iMinus1][0])) * xx + intercept;
this.parent.y = -this.parent.y;
rotationAngle = -(180/Math.PI) * Math.atan2(rise, run);
this.parent.rotation = rotationAngle;
trace("rise = " + rise + " run = " + run + " rotationAngle =
" + rotationAngle + " Intercept = " + this.intercept);
trace("x = " + this.parent.x + " y = " + this.parent.y + "
rotation = " + this.parent.rotation);