This topic is based on AutoCAD graphic input environment. It takes the STL format graphic files as the data exchange interface to do the research of STL interactive 3D realistic graphics displaying content. Through th...This topic is based on AutoCAD graphic input environment. It takes the STL format graphic files as the data exchange interface to do the research of STL interactive 3D realistic graphics displaying content. Through the analysis of the STL file format, in VC＋＋6.0 programming environment, class if stream in the standard IO library was used for object class definition. And get line functions in the string class were called to read and bind STL file line by line. In data processing module, draw triangles in OpenGL programming technology was applied to realize the visual display of the STL graphics, with the corresponding 3D entity data generated. OpenGL graphics processing technologies were applied to display 3D graphics from STL files input or realistic program module, which contain the graphic transformation, light, materials, et al. Test reports were shared based on the test of the application system. Finally the program design of STL graphics realistic display system was completed based on research work, which has certain theoretical and practical significance in the aspect of engineering application.展开更多
A new method to generate shaded display of objects is presented in this paper.Based on shading knowledge like that used by painters,it can work quickly and flexibly.Users may produce shading effects with different sty...A new method to generate shaded display of objects is presented in this paper.Based on shading knowledge like that used by painters,it can work quickly and flexibly.Users may produce shading effects with different styles on purposes,while the cost time almost remains constant.An experimental system is implemented,and some results are obtained.展开更多
This paper describes the erosion procedure of the natural terrain and deduces the two main physical physical procedures by the hydraulic erosion and thermal weathering. through a large number of iteration calculation ...This paper describes the erosion procedure of the natural terrain and deduces the two main physical physical procedures by the hydraulic erosion and thermal weathering. through a large number of iteration calculation ,the action procedure could be expressed and its realistic graphics could be displayed.展开更多
文摘This topic is based on AutoCAD graphic input environment. It takes the STL format graphic files as the data exchange interface to do the research of STL interactive 3D realistic graphics displaying content. Through the analysis of the STL file format, in VC＋＋6.0 programming environment, class if stream in the standard IO library was used for object class definition. And get line functions in the string class were called to read and bind STL file line by line. In data processing module, draw triangles in OpenGL programming technology was applied to realize the visual display of the STL graphics, with the corresponding 3D entity data generated. OpenGL graphics processing technologies were applied to display 3D graphics from STL files input or realistic program module, which contain the graphic transformation, light, materials, et al. Test reports were shared based on the test of the application system. Finally the program design of STL graphics realistic display system was completed based on research work, which has certain theoretical and practical significance in the aspect of engineering application.
文摘A new method to generate shaded display of objects is presented in this paper.Based on shading knowledge like that used by painters,it can work quickly and flexibly.Users may produce shading effects with different styles on purposes,while the cost time almost remains constant.An experimental system is implemented,and some results are obtained.
文摘This paper describes the erosion procedure of the natural terrain and deduces the two main physical physical procedures by the hydraulic erosion and thermal weathering. through a large number of iteration calculation ,the action procedure could be expressed and its realistic graphics could be displayed.
