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twist.html

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TwistVectorApplet Demo of a bicubic surface patch, geometric formulation.

You can manipulate the tangent vectors, the twist vector, and the coordinates of one of the four corner vertices of the patch. The vertices of the patch are:

  • 0, 0, 0; U Tangent = 6, 0, 6; W Tangent = 0, 3, 3; Twist Vector = 0, 0, 0
  • 10, 0, 0; U Tangent = 3, 0, -3; W Tangent = 0, 3, 0; Twist Vector = 0, 0, 0
  • 0, 6, 0; U Tangent = 1, 0, 0; W Tangent = 0, 1, 0; Twist Vector = 0, 0, 0
  • 10, 0, 0; U Tangent = 3, 0, 0; W Tangent = 0, 1, 0; Twist Vector = 0, 0, 0

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Created by drosen
Last modified 12/31/2004 12:18 PM
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