How to create an interactive image panning in flash?

I'm kinda new in flash and as3 so this may not be as difficult as it looks right now. I've been trying to figure out how I can pan an image in flash (x and y). I have a movieclip and I want the user only to se开发者_Python百科e a small part as he's panning with the mouse. Hope you can help me out with this.

Thanks,

Joana

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You could try this: http://as3imagepan.blogspot.com/ and download the fla's here: http://www.flashmadblog.com/wp-content/uploads/2009/11/panning_image.zip

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Here's a simple solution:

var bitmapHolder:Sprite // this is your image container
var masker:Sprite = new Sprite();
masker.graphics.beginFill(0);
masker.graphics.drawRect(0, 0, width_you_want_visible, height_you_want_visible);
masker.graphics.endFill();

bitmapHolder.mask = masker;
addChild(bitmapHolder);
addChild(masker);

bitmapHolder.addEventListener(MouseEvent.MOUSE_DOWN, startDragging);

function startDragging(e:MouseEvent):void {
 bitmapHolder.startDrag();
 stage.addEventListener(MouseEvent.MOUSE_UP, stopDragging);
}

function stopDragging(e:MouseEvent):void {
 stage.removeEventListener(MouseEvent.MOUSE_UP, stopDragging);
 bitmapHolder.stopDrag();
}