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Actionscript 3 Tutorials - Intermediate Techniques

Doug Ensley, Barbara Kaskosz

Each of the links below opens a new window in which you can download a complete tutorial guide (pdf) along with all supporting source code (zip) referenced by the guide. Clicking on the screen shot on the right opens the actual applet in a new window so you can explore its functionality.

A Simple Function Grapher   In four steps, we explain how to built a simple function grapher in AS3. The user can choose the x and y ranges as well as the function being graphed.
Creating a Histogram with Runtime Drawing   A step-by-step tutorial that reinforces the ideas of dynamic drawing and shows a method of parsing the user's comma-delimited input.  
Animation Using the "Enter Frame" Event  The tutorial explains in detail how to animate a bouncing ball programmatically.  
An Animated Family of Functions   We use the same technique as in the previous tutorial to animate a family of trigonometric functions.  
Drawing in a Window at Runtime  The user clicks on two points in a graphing board. The points and the line between them are dynamically drawn.
Flash Forum Custom Classes: Modifying Appearance  We show how to easily modify the appearance of a parametric grapher from our Flash Forum article "Flash Tools for Developers (AS3): Graphing Curves in the Plane".
Creating Textboxes at Runtime  A simple matrix multiplication applet. However, the user is allowed to choose the dimensions as well as the elements of matrices. Hence, all textboxes have to be created at runtime.

Doug Ensley, Barbara Kaskosz, "Actionscript 3 Tutorials - Intermediate Techniques," Convergence (July 2007)