Materials for a talk delivered at the 360|Flex conference in Atlanta on February 26th, 2008.
Working With Bitmaps In Flex is about using some advanced ActionScript APIs to achieve visual effects in a Flex application that are both useful and cool. It assumes the audience is familiar with the the basic use of the Flex Image component and the use of bitmaps in styling, and goes a step beyond, by exploring the ActionScript Bitmap API and its application in Flex. The material to be presented is essential to developing an application that is about imagery: illustration, data visualization, medical imagery, scientific imagery, and so forth. The material also points the way to enhancing the visual impact of any application, by accessing effects that don't come right out of the Flex box.
Topics covered:
- The Bitmap and BitmapData classes
- The Flex Image class
- Pixel manipulation
- Bitmap-based transitions
- Creating custom Bitmap-based components
The ideas presented are based on the experience of the Allurent Product Development team, and are relevant to a wide range of applications.
The sample application is a toy contrived to show off as many as possible of the more useful BitmapData functions. As such, it is not intended to be a practical application! For one thing, it does not write its output back to the server. It resembles a Paint Box tool somewhat, with Slideshow tendencies.
Run it here
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