Abstract:
Geometry model creation is necessary stage of numerical data preparation process. This problem can be solved by means of special CAD systems working with parametric curves and surfaces and using B-rep approach. This article suppose using B-spline model for object geometry description. Next stage of data preparation is mesh generation. An algorithm based on modified advancing front technique in plane was suggested for B-spline surface mesh generation with holes and complex boundaries. The parametric prototype retrieval algorithms for B-spline curves and surfaces is using in B-spline surface triangulation process.