Scale and drag a map - center problem

[StingRay]

Hi! I've used the great examples by SoftWarewolf‎ & Popcorn to create a scaleable/rotatable/dragable map in my app.

the basic works great, I've just a problem with the scaling, if you are 'inside' the map. it always uses the centered pivot point of course,
but in this case it would be best if the pivot point of the map would constantly change to keep the image scale pivot in center of the screen.

here you can find an example of what I mean exactly - your help would be greatly appreciated!!

http://tiny.cc/7bhsiw

thank you!

Richie

[StingRay]

Sorry to bump, but isnt there a formula for this? I've searched the Web but couldnt get a Solution

[Popcorn]

You'll need to take the distance between the map and the center into account when you zoom. I'm not able to make an example of this, but here's an example that might get you on the right track. It has scaling and scrolling, but no rotating.

[StingRay]

Thank you, that's a very good start!

[iamjot]

Very nice.