User pan/tilt/zoom image to fit in a mask.. How to?

Posts: 1
Joined: 2010.07
Post: #1
I want the user to be able to take a photo and fit it in a mask with pan/tilt/zoom.

What would be the good way to do that ?

Here is an example of what I am talking about:

I'm sorry, I may not be expressing myself really well.. It may explains why I can't find anything searching google

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Posts: 1,563
Joined: 2003.10
Post: #2
I think I see what you're saying. You want the user to be able to drag, rotate, and scale the picture underneath the fixed-in-place mask to center it as best they can, right?

This is more of a technical question than a design question, so aside from possibly moving this thread, we'll need some more technical details to be able to give a useful answer. Are you writing for the Mac or iPhone? Using OpenGL, Quartz, or something else for graphics? Is there a specific place you're stuck on the problem, or having trouble coming up with a general approach?
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