# Hide movieclip parts that are out of bounds

I'm making a game where one takes a picture of their face to use on a character. I have them zoom in on the picture, but the bitmapdata extends out of its movieclip. How do I assign bounds to my bitmapdata?

• I decided to try getBounds – user25191 Mar 30 '13 at 4:41
• ...and it didn't work – user25191 Mar 31 '13 at 14:35
• Since this task is not just relevant to games (I can imagine websites doing this) there may already be an explanation on the main StackOverflow. – jhocking Apr 3 '13 at 12:23

## 2 Answers

I think you need to dynamically create a shape with the x, y, width, and height of what you want to be visible, make it a mask and then add it to the display list in front of the bitmap data's movie clip. See this article on the subject.

Use the scrollRect property of your Bitmap. Here's the API documentation. You might also be interested in the following question/answer.