Polygonization of implicit surfaces with constructive solid geometry 超形有兩個(gè)值得重視的特點(diǎn)。
2 rossignac j r . constraints in constructive solid geometry 當(dāng)然,表達(dá)的緊湊性也是需要考慮的重要因素。
Constructive solid geometry 構(gòu)造實(shí)體幾何
A quick visible algorithm based on dynamic constructive solid geometry reconstruction 基于構(gòu)造實(shí)體幾何模型動(dòng)態(tài)重構(gòu)的快速顯示算法
? 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 正如將在后續(xù)章節(jié)中所講述的那樣,我們在系統(tǒng)中采用了許多先進(jìn)的技術(shù),其中主要包括以下幾點(diǎn):采用分層設(shè)計(jì)思想,使三維物體的設(shè)計(jì)得到了簡化;采用先進(jìn)的實(shí)體造型方法,使所建立的實(shí)體真實(shí)感強(qiáng);實(shí)現(xiàn)了內(nèi)點(diǎn)自動(dòng)查找、多邊形方向自動(dòng)定義等算法,提高了系統(tǒng)的自動(dòng)化水平;實(shí)現(xiàn)了刀具軌跡的自動(dòng)生成、優(yōu)化;實(shí)現(xiàn)了數(shù)控代碼的自動(dòng)編寫,克服了手動(dòng)編寫的缺點(diǎn);實(shí)現(xiàn)了數(shù)控加工仿真,能檢驗(yàn)數(shù)控代碼的正確性和合理性,并能自動(dòng)檢測刀具與工件之間的干涉。