Resources Contact Us Home
Solid-modeling system using topology directed subdivision for determination of surface intersections

Image Number 13 for United States Patent #5014230.

A system for topology directed subdivision of a pair of surfaces to identify intersecting portions thereof includes the steps of obtaining a pair of surfaces from a main pool of surface representations and performing a mutual point exclusion test to determine if the surfaces may have an intersection. For those pairs of surfaces possibly having an intersection, the transversality of the surface is checked. If transversal, the intersection set is computed. For those pairs which are not transversal, recursive subdivision is performed until transversality is established or until a flatness criteria is met. A parallel processing system including a master processor and a plurality of slave processors performs the subdivision operation on the surfaces in a parallel fashion.

  Recently Added Patents
Method and apparatus for information exchange over a web based environment
Data unit receiver and sender control method
Electric separator, method for the production and use thereof
System for and method of providing single sign-on (SSO) capability in an application publishing environment
Optical navigation device with image sensor and inner housing
Carrier sense multiple access (CSMA) protocols for power line communications (PLC)
Determination of copy number variations using binomial probability calculations
  Randomly Featured Patents
Internal combustion engine operation utilizing exhaust gas recirculation
Mounting piece for a side mirror for a vehicle
Nonlinear multivariable control system
Pull ring with attached aperture seal
Magnetic disc apparatus with slider having specified location of action point of equivalent load
Die paddle clamping for wire bond enhancement
Method of improving the operational capacity of three-way catalysts
Operation switch device for use with lawnmower
Integrated paper and computer-based testing administration system
Foldable knife having switch element