本帖最后由 ValleyViews 于 2015-10-8 02:24 编辑 2 x/ n }6 o# ~# _: z7 k
aysuio 发表于 2015-10-7 04:58 * C: L% N* W0 ]) S
:)
" c+ ?" \- Z4 @+ E: v大侠,别用您啦,小子真担待不起,我是小弟:D
% ^/ R7 o# J& E, k$ _大侠这么认真,小子自然很愿意来跟大侠说一下。 * k- z8 K9 B8 N6 O
四海之内皆兄弟也。 6 M; k8 ~3 Z# C
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. 7 o ?# f# M2 h7 i2 Y; @9 G. ]
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