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compare layers3 p u. `; I% C3 n: Q& L
对比层命令，检查二个层的区别，主要作用是改动后检查或者改版检查，看看是否动到了其它不应该动的地方
$ G9 V4 i3 f' m& SThis command allows you to compare two separate Gerber layers and detect any differences between the two. Essentially, it is like plotting both layers on film, then placing one on top of the other and seeing if they match. Individual layers of a composite can also be compared.3 J5 u, }" I: n: _0 Y2 u
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copper area ( T& x! o' M* D
计算残铜率面积1 O# [$ ?) t2 n7 P3 J6 V
The Copper Area command calculates the amount of copper used in your design. It can report on a single layer, multiple layers or multiple layers with the surface area of all holes. Copper in holes will only be reported on the Top and Bottom layers. This information can be used to determine the current settings for electroplate operations in board fabrication. | 
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发表于 2015-12-29 14:21
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