G - Physics – 06 – T
Patent
G - Physics
06
T
G06T 17/00 (2006.01) G06T 15/00 (2006.01) G06T 17/40 (2006.01)
Patent
CA 2357940
A computer system and method for simplifying annotations on a surface includes a tolerance process creating a tolerance window lying in a plane and centered on the query point at the end of a test edge and perpendicular to the test edge. The tolerance window is defined by a first tolerance that specifies an amount of first error measured by the distance from a simplified path to an original path in the plane tangent to the surface, and a second tolerance that specifies an amount of second error measured by the distance from the simplified path to the original path in the plane perpendicular to the surface. The original path is a set of original edges on the surface. A point projection process that projects a second end point of one or more second edges onto the plane of the tolerance window. The second edges have the query point also as an end point where the projection of the second end points are projected points. An invalidation process marks an edge as "invalid" and removes it both from the list of simplifiable edges and the final list of simplified edges. A selection process selects one of the second end points that has a projected point within the plane containing the tolerance window, deletes the query point, and connects the origin point to the respective second end point, to create a new edge that replaces the test edge and respective second edges in the set of original edges to create the simplified path.
Horn William P.
Klosowski James T.
Lecina Gerard
Suits Frank
Dassault Systemes
International Business Machines Corporation
Rosen Arnold
LandOfFree
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