Boots – shoes – and leggings
Patent
1992-06-24
1995-01-03
Mai, Tan V.
Boots, shoes, and leggings
364578, 36447424, G06F 1546, G06F 1572
Patent
active
053792254
ABSTRACT:
A method for efficient calculation of the movement of a vertex in a three-dimensional topography simulator. The method is particularly well suited for calculating vertex movement for cases in which an etch/deposition rate depends on the angle between the surface normal and the vertical direction. A workpiece is represented as a collection of material solids. Each of the material solids has a boundary model representation, which include vertices, edges and faces. The method of the present invention generally includes the steps of: identifying a first plane, a second plane and a third plane that approximate all the planes that are adjacent to a vertex point to be moved; determining a first observation vector; creating a set of advanced virtual planes; identifying a second observation vector; determining the furthest intersection point of one of the planes in the set of advanced planes and the second observation vector; and moving the vertex to the point identified in the prior step.
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Leon Francisco A.
Saito Kazuyuki
Sharfetter Donald L.
Tazawa Satoshi
Yoshii Akira
Brown Thomas E.
Intel Corporation
Mai Tan V.
Nippon Telegraph and Telephone Corporation
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