MESSAGE--具有自由曲面造型功能的立体造型系统
MESSAGE--A Solid Modeler with Free-Form Surface Facilities
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摘要: MESSAGE是一具有自由曲面造型功能的立体造型系统,它能够处理二次曲面、旋转曲面、 广义sweeping曲面、自由曲面以及由平面和上述曲面围成的三维物体,系统以平面及双三次 有理B样条曲面为基本曲面模型,提供了布尔运算、glue运算及多种局部修改运算.系统还 具有一个独立的几何数据库,可以支持一些重要的工程应用.Abstract: MESSAGE is a solid and surface modeling environment. It can deal with a wide range of surfaces such as quadric and rotational surfaces, generalized cylinders and free-form surfaces as well as any solid figure bounded by planar and curved surfaces mentioned above. Surface modeling and solid modeling are consistent in MESSAGE. The basic surface models of the system are bicubic rational B-spline surfaces. A number of operations on surfaces and solid objects are provided. Some important applications can be supported by MESSAGE.
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Key words:
- Solid modeling /
- surface modeling /
- free-form surface /
- Boolean operation
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