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Old 05-16-2008, 06:00 PM   #1 (permalink)
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Default Scaling a portion of a bitmap

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Is there any way to convert a Bitmap back to an EncodedImage in order to scale it?

I have a large bitmap created from an EncodedImage. I scaled it fine and displayed it. The next step is to draw the same bitmap starting at a specified x and y, but I need to scale it too. The drawBitmap allows me to draw starting at a specified destination (ie. x,y) but the scaling is part of the EncodedImage. How do I translate the portion of the bitmap back to an Image in order to scale it?
Or is there another way to do this.

Any help will be appreciated.

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Old 05-19-2008, 03:49 AM   #2 (permalink)
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you can create an array from the bitmap, rework the array according to your wishes and build a new image from it.
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Old 05-19-2008, 10:53 AM   #3 (permalink)
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Quote:
Originally Posted by simon.hain View Post
you can create an array from the bitmap, rework the array according to your wishes and build a new image from it.
THe question I still have, is that how can I access the data ( given an offset) from the bitmap so that I can build a new Image.

For example I would like to access the data in the bitmap starting at (x= 50, y =50). I need to read the data in a byte array so that I can manipulate it using EncodedImage. How to access/read the data back from the bitmap.

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Old 05-19-2008, 01:03 PM   #4 (permalink)
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getARGB will give you the data array. You can then use the width and height of the bitmap to step through that data however you want.
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