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Understanding curves and control point placement - ActionScript.org Flash, Flex and ActionScript Resources
Understanding curves and control point placement Freelancer behind 5 1/2 math and physics enthusiast Patrick has a knack for making seemingly simple things overly complicated. Perfect for a tutorial writer. In a previous tutorial, Dynamic masking using the drawing API II (see related articles), I've introduced the use of control points in Flash curves to morph between different curves.
An unusual chain letter began circulating on the Internet in January 2004. It included a series of images of street paintings that appear to defy the laws of perspective , to the point that many Internet users who were propagating the chain letter to their friends doubted their authenticity and suspected that the images were digitally-created illusions. The images are in actual fact authentic. They are fine examples of an art form known as anamorphism , in which the picture is distorted so that it assumes a normal appearance when viewed from a specific viewpoint. This is a well-known technique, often employed in film and theatre production to create the illusion of depth.