本帖最后由 ValleyViews 于 2015-10-8 02:24 编辑
7 b# B5 `; R6 R6 h5 zaysuio 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( o- B: |: X& d
大侠这么认真,小子自然很愿意来跟大侠说一下。
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3 N; e, m# d( L% i5 fTalking 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. , G/ P9 `, ]( W, U7 S7 q
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