本帖最后由 ValleyViews 于 2015-10-8 02:24 编辑
( m' {8 a7 B6 U" I; v5 U' U$ w" Yaysuio 发表于 2015-10-7 04:58 ![]()
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大侠,别用您啦,小子真担待不起,我是小弟:D
. S0 U' K, F# U5 D! V6 ]5 m5 {1 _/ w大侠这么认真,小子自然很愿意来跟大侠说一下。 8 Q: o2 @! v$ ~$ I& o4 V) l* u; k7 H
四海之内皆兄弟也。 3 G$ [/ z+ W1 B, ]# p& E
Talking about your explanation, I think that every sentence is understandable except this one: “Line elements is a 2D element, like it just has dimensions in X and Y, and NEVER think about you can measure line elements in Z axis.” My understanding is that even though you measure line elements in specified view direction ( either front view or side view ), it doesn't mean the measured line element is a 2D element. Furthermore, actually it is still a 3D element. When you measure it with an indicator, what will you get? You must get some values in Z axis.
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