Research Of 3D-Solid Modeling System On OpenGL

The key problem in the object-oriented interactive graphic system of this text has carried on research and discussion, aiming at laying the solid theoretical foundation in order to set up the practical object-oriented interactive 3D-Solid modeling software system. This thesis reserarches and develops an interactive 3D-Solid modeling software system named Grace3D,using OpenGL as the graphics system core. On theory basis of expressing 3D-Solid by Boundary-Reptesentation method,this thexis adopts HalfEdge data structure to express 3D multi-facets solid,and researchs the Eulor modeling opration algorithm,which are based on HalfEdge date structure,acting on some basic 3D multifacets solids. Grace3D adopts the stratification structure,it has good crosswise and the longitudinal extension, In order to further studied has established the good theory and the practice foundation.