本帖最后由 ValleyViews 于 2015-10-8 02:24 编辑
* l5 h/ n1 D+ d) E6 d: }aysuio 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
# g1 ^9 b* N$ V1 J+ R- Z大侠这么认真,小子自然很愿意来跟大侠说一下。 6 B) B) B) M" `% B, ^
四海之内皆兄弟也。
S; J ^- O& hTalking 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. 0 d$ K2 {4 v1 c0 k1 {. o) j0 B
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