offset path 中文意思是什麼
offset path
解釋
路徑位移-
Because ga possesses the traits of can global random search, the robustness is strong, been use briefly and broadly, it didn ’ t use path search, and use probability search, didn ’ t care inherence rule of problem itself, can search the global optimum points effectively and rapidly in great vector space of complicated, many peak values, cannot differentiable. so it can offset the shortages of nn study algorithm, can reduce the possibility that the minimum value get into local greatly, the speed of convergence can improve, interpolation time shorten greatly, the quantity of training reduce
因為遺傳演算法具有全局隨機搜索能力，魯棒性強、使用簡單和廣泛的特點，它不採用路徑搜索，而採用概率搜索，不用關心問題本身的內在規律，能夠在復雜的、多峰值的、不可微的大矢量空間中迅速有效地尋找到全局最優解，所以可以彌補神經網路學習演算法的不足，使陷入局部最小值的可能性大大減少，使得收斂速度提高，訓練量減小。 -
Tool path is generated by the treatment to the intersection curves between the offset of models " surfaces and drive plane
對基於實體表面等距面的截平面法精加工刀軌生成演算法進行了研究。 -
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
然後實現了兩種精加工刀具軌跡生成方法，一種是基於等距面的截平面法，通過點對點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。 -
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，基於斜等距曲面的原理，推導出葉片分段側銑加工時刀位軌跡的生成和計算；並用計算機模擬和刀心軌跡圖對刀位進行了驗證。 -
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發生自交，曲面的自交處理計算復雜，降低了基於等距面的刀具軌跡計算速度。 -
( 3 ) for the purpose of verifying subdivision surface and its offset algorithms, this paper has advanced nc tool path generation of subdivision surface
（ 3 ）為了檢驗細分曲面及其等距面演算法，本文對細分曲面數控加工刀軌生成進行了研究。 -
Any query such as the one in listing 1 has a precise path to the specified datum, which a dbms can quickly determine in balanced trees and byte - offset codings
如清單1中所示的任何查詢都有到指定數據的精確路徑， dbms可以迅速地在均衡樹和位元組偏移編碼中確定它。
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