offset surface造句
例句與造句
- Sort of effectively method of constructing offset surface
一種有效的等距面構(gòu)造方法 - Research on contact problem of surfaces and contact characteristics of offset surfaces
曲面接觸問題及其等距面接觸特性研究 - Profile design of cam with cylindrical roller - followers by offset surfaces method
圓柱滾子從動(dòng)件凸輪廓面的等距曲面設(shè)計(jì)方法 - Based on theory of spline surface offset , the first one directly finds the control polygon mesh of the offset surface from the original control mesh
第一種算法依據(jù)樣條曲面等距原理，把對(duì)細(xì)分曲面的等距轉(zhuǎn)化為其等距前后控制網(wǎng)格的對(duì)應(yīng)關(guān)系。 - An offset surface method was proposed to calculate the discrete mandril ' s height , whose algorithm was very simple and without the convergence problem which is common to analytical algorithm
提出了采用偏移球心曲面計(jì)算頂桿高度的方法，算法實(shí)現(xiàn)簡(jiǎn)單，無解析算法產(chǎn)生的收斂問題。 - It's difficult to find offset surface in a sentence. 用offset surface造句挺難的
- The virtual blending between surfaces is introduced , and offsetting surfaces of the edges and vertices of the machined solid model are generated to make the implementation of the algorithm more easily
在實(shí)體的棱邊和頂點(diǎn)處引入虛過渡，研究實(shí)現(xiàn)了棱邊和頂點(diǎn)等距面的生成。既保護(hù)了棱邊與頂點(diǎn)，避免了過切干涉，又簡(jiǎn)化了編程。 - But this method can ’ t be used to generate tool - path for the kind of surfaces whose curvature varies sharply , since singularity may appear when creating the offset surface . it is computation expensive to resolve the singularity
但曲率變化大的曲面在生成等距面時(shí)發(fā)生自交,曲面的自交處理計(jì)算復(fù)雜,降低了基于等距面的刀具軌跡計(jì)算速度。 - Based on the principle of inclined offset surface , the calculation and generation of nc cutter location for small divided area of blade were introduced . in addition the computer simulation and the path chart of cutter center were given to prove the tool path
在每一段曲面上，基于斜等距曲面的原理，推導(dǎo)出葉片分段側(cè)銑加工時(shí)刀位軌跡的生成和計(jì)算；并用計(jì)算機(jī)仿真和刀心軌跡圖對(duì)刀位進(jìn)行了驗(yàn)證。 - The first one is based on the offset surface of subdivision model . through mapping the original mesh node by node , the offset surface is generated . it can get the interference free tool - path directly from the offset surface without complex interference check and process
然后實(shí)現(xiàn)了兩種精加工刀具軌跡生成方法,一種是基于等距面的截平面法,通過點(diǎn)對(duì)點(diǎn)法向映射的方法生成遞歸分割曲面模型法向等距面,由該等距面生成無干涉刀具軌跡。 - In some time - critical situation , continuous ssi is computation bottleneck of some solid modeling system . conventional approach for solving continuous ssi often uses intersection algorithm iteratively without taking the characteristic of the surface into account to simplify computation . the dissertation analyzes the intersect curve structure of continue surface , from the point of intersect curve ' s evolution , it describes the relationship between topology of offset surface intersect curve and topology transmit point ( ttp )
等距曲面和運(yùn)動(dòng)曲面在cad cam領(lǐng)域中有著重要的應(yīng)用，在一些時(shí)間敏感場(chǎng)合例如數(shù)控加工動(dòng)態(tài)仿真，等距曲面和運(yùn)動(dòng)曲面等連續(xù)變化曲面求交運(yùn)算已成為這些系統(tǒng)的計(jì)算瓶頸，連續(xù)變化曲面求交問題的通常解法是采用曲面求交算法反復(fù)迭代計(jì)算交線，沒有考慮連續(xù)變化曲面交線之間的相似性進(jìn)行求交簡(jiǎn)化，效率上一直不能有很大的提高。 - The general idea behind the second one is approximation . the control mesh is subdivided until the error between the control vertices and corresponding subdivision surface is less than a given threshold . then the vertices substitute those points on the surface approximately . the last step is to calculate offset point for every vertex and connect them to form an offset surface
第二種算法采用逼近思想，首先通過對(duì)控制網(wǎng)格進(jìn)行細(xì)分，當(dāng)控制頂點(diǎn)和細(xì)分曲面的距離滿足一定誤差要求時(shí)，近似用控制頂點(diǎn)代替細(xì)分曲面上的點(diǎn)，然后對(duì)各個(gè)頂點(diǎn)分別求等距點(diǎn)。