Point placement method for use in a three-dimensional automatic mesh generation system
First Claim
1. A method for producing a set of points for a mesh of finite elements for a body to be analyzed, said body exhibiting boundaries and faces, said method comprising the steps of:
- a. producing an initial mesh of elements for said body, each said element having a plurality of vertices and edges;
b. for each vertex in a first subset of said vertices, finding points of intersection (POI'"'"'s) between a sphere of radius R, centered at said vertex, and said boundaries and edges;
c. determining if a found POI is either on or within boundaries of said body and if so, exhibits more than a minimum clearance distance from said boundaries and vertices, if both conditions are met, said POI is classified as a selected POI;
d. inserting a selected POI in said initial mesh; and
e. repeating steps b-d for all POI in said first subset, and then proceeding to succeeding subsets of said vertices, until all subsets have been considered.
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Abstract
A method for producing a set of points for a mesh of finite elements for a body to be analyzed, the body exhibiting boundaries and faces. The method comprises the steps of: producing an initial mesh of elements for the body, each element having a plurality of vertices and edges; for each vertex in a first subset of the vertices, finding points of intersection (POI) between a sphere of radius R, centered at a vertex being considered, and the boundaries and edges; determining if a found POI is either on or within the boundaries of the body and exhibits more than a minimum clearance distance from the boundaries, and vertices, any such POI being classified as a selected POI; inserting a selected POI in the initial mesh; and repeating the aforementioned steps for all POI'"'"'s in the first subset and then proceeding to succeeding subsets of vertices until all POI'"'"'s in all subsets have been considered.
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Citations
12 Claims
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1. A method for producing a set of points for a mesh of finite elements for a body to be analyzed, said body exhibiting boundaries and faces, said method comprising the steps of:
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a. producing an initial mesh of elements for said body, each said element having a plurality of vertices and edges; b. for each vertex in a first subset of said vertices, finding points of intersection (POI'"'"'s) between a sphere of radius R, centered at said vertex, and said boundaries and edges; c. determining if a found POI is either on or within boundaries of said body and if so, exhibits more than a minimum clearance distance from said boundaries and vertices, if both conditions are met, said POI is classified as a selected POI; d. inserting a selected POI in said initial mesh; and e. repeating steps b-d for all POI in said first subset, and then proceeding to succeeding subsets of said vertices, until all subsets have been considered. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification