Polygonization of implicit surfaces with constructive solid geometry 超形有两个值得重视的特点。
2 rossignac j r . constraints in constructive solid geometry 当然,表达的紧凑性也是需要考虑的重要因素。
Constructive solid geometry 构造实体几何
A quick visible algorithm based on dynamic constructive solid geometry reconstruction 基于构造实体几何模型动态重构的快速显示算法
? to make the solid have realistic surface , we adopt advanced solid modeling method - constructive solid geometry . ? to free end - user from overwork , we presents and realizes many auto - processing algorithms , such as searching of inner - point , definition of polygon ' s counter - clockwise direction , as well as generation of numeric control codes . ? to checkout the collision and interference between cutter and part , we accomplish numeric control machining simulation , which can help end - user validate the correctness and rationality of numeric control codes , so it is needless that do repetitive test - cut before normal manufacture 正如将在后续章节中所讲述的那样,我们在系统中采用了许多先进的技术,其中主要包括以下几点:采用分层设计思想,使三维物体的设计得到了简化;采用先进的实体造型方法,使所建立的实体真实感强;实现了内点自动查找、多边形方向自动定义等算法,提高了系统的自动化水平;实现了刀具轨迹的自动生成、优化;实现了数控代码的自动编写,克服了手动编写的缺点;实现了数控加工仿真,能检验数控代码的正确性和合理性,并能自动检测刀具与工件之间的干涉。