例句與造句

1. Based on data cloud , which is measured from 3 - coordinate measuring machine ( cmm ) or so , an algorithm to search lopological structure from 3d unorganized points using envelopment - box technology is proposed in this thesis . based on this method , we searching neighbor points of sampling point . we also improve the max - min angle criteria to realize local triangulation , and then get the normal of sampling point from the triangulation
   本文以測量得到的曲面數(shù)據(jù)點點云為基礎，提出了一種基于包圍盒的自動尋找三維散亂數(shù)據(jù)點之間拓撲結構的方法，采用該方法尋找采樣點的鄰域結點，并對三角剖分中的典型優(yōu)化準則?最小內角最大準則提出了改進，按照改進后的優(yōu)化準則實現(xiàn)了采樣點的局部三角劃分，并進一步求解得到采樣點的法向量，依據(jù)法向量及鄰域拓撲關系在二次曲面的基礎上實現(xiàn)了散亂數(shù)據(jù)曲面重構中的數(shù)據(jù)點的自動分類。
2. It's difficult to find local triangulation in a sentence. 用local triangulation造句挺難的