Hi-Res Zooming

I'm hoping this is a simple question, so here goes . . .

I have a hi-res aerial and would like to zoom in on a particular part of the aerial. Sounds simple, right? Well, when I zoom in the graphic loses it hi-res and everything gets pixelated. What am I not doing correctly?

I have tried doing a frame by frame with 12 different aerials and it's too choppy. Any suggestions?

HawksQuest :rolleyes:

How 'high-res' is the image? What resolution is it? What is the file size?

Hi,

Zooming in or scaling a high res image will produce a pixelated effect if scaled to far. Your options are to use a lower resolution image or find a point where the scale doesn't effect the image in a noticeable way. I wrote an autozoom function that might be useful for something like this. It zooms in to any mouse clicked position and has 3 predefined scale limits.

code:

---

/*

Auto Zoom Function

     T. Norman

http://ntdesigns.net

*/

myZoom = function (myDepth) {

	if (myDepth == "deep") {

		myDepth = 4;

	} else if (myDepth == "medium") {

		myDepth = 8;

	} else if (myDepth == "light") {

		// default

		myDepth = 12;

	}

	trace(myDepth);

	_root.onMouseDown = function() {

		if (k>0) {

			return;

		}

		zoom = true;

		dir == 1 ? (dir=-1) : (dir=1);

		if (dir == 1) {

			pt = {x:_root._xmouse, y:_root._ymouse};

		}

	}

	this.onEnterFrame = function() {

		if (!zoom) {

			return;

		}

		_root._xscale += dir*k*50/myDepth;

		_root._yscale += dir*k*50/myDepth;

		var pt2 = {x:pt.x, y:pt.y};

		_root.localToGlobal(pt2);

		_root._x -= (pt2.x-pt.x);

		_root._y -= (pt2.y-pt.y);

		k++;

		if (k == 8) {

			zoom = false;

			k = 0;

		}

	}

}

myZoom("medium");

---

Hi,

I hate to butt into a thread, but I'm hoping that NDT (or anyone who can help) sees this. The zoom code is absolutely great, but of course I have a problem with it.

I'm trying to apply it to a movieclip (instance name, map) instead of to my entire movie. I've tried putting the code in different places, and I've tried changing some of the code; but it either zooms the entire movie or it doesn't work at all. Is there a way to direct it to a specific movieclip?

Thanks a bunch,
Debbie

Note to HawksQuest:
I've been doing something similar to your resolution problem. It may not be the best way, but here's what I did. I created the image, outside of Flash, half of the maximum size that I wanted to zoom it to. I scaled the image to the desired size when I placed it into my movie, then I was able to zoom it to twice the size of the original without losing much clarity. Don't laugh, it was the only way I could get good results.
Debbie