符号是用户定义的名称。

A symbol is a user-defined name.

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地形地籍成图系统CASS不仅可以连通数字化成图系统与GIS的接口，还可以实现简码的用户化和图式符号的自定义编辑。

CASS, which is the topographical and cadastral survey system, not only can link digital mapping system and interface of GIS, but also customize the personal code and custom the cartographic symbol.

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本文旨在通过用形方式定义并标注表面粗糙度符号的过程的介绍，使更多用户学会并乐于定义形和使用形。

The purpose of this paper is to make more user master the method and glad to definite shape and use shape defini…

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