text of MapContour follows, in case testing proves destructive... 19 aug 08

MapContour

Maps a contour according to a transform defined by the corrospondences of the faces of two homologous shapes.

Description

One approach to three dimensional surface warping first transforms the surface into a two dimensional representation. The warp is then calculated and applied to the two dimensional analogue of the original surface. For warping methods that use pairs of contours to guide the warp, the contours must also be transformed into the same two dimensional space as the surface.

MapContour carries out this transformation, for the specific warp methods defined by the ShapeTools elastic warp protocol (2008). Given a surface, and a contour whose vertices lay on, or near, the faces of that surface, MapContour will map (flatten) the contour onto the 2d plane containing the mapped (flattened) surface.

Method

Each vertex of a contour is treated as follows:

• The face of the 3D surface (presumed to contain the contour) that contains the vertex is located.
• For this face, find vertices of flatten face which is transformed from the original.
• Using vertices of the original face and vertices of flatten face, find transformation.
• Transform the point on the contour using this transformation.

Project Components

• Feature Wish List
• Documentation
  • Project User's Guide v 1.0
  • Examples using project version 1.0
  • Changes since version 1.0
  • Frequently Asked Questions
• Feedback
  • Project Bug List (v1.0)

See Also

• FlattenSurface
• InflateSurface
• InflateContour