Language and Conventions Overview
全局参数访问（GPA）的符号提供访问其用于由Unigraphics的系统的某些功能的数据的手段。
一个GPA符号总是与一个符号（＆）开始，最多六个字符。GPA是在系统中定义，不能被改变。
Each GPA symbol is associated with either a unique global parameter or a constant and has an access type, a data type, and a data range. The following list contains a few of the GPA symbols which are available:
每个GPA符号与唯一全局参数或恒定，并且具有存取类型，数据类型和数据范围相关联。以下列表包含几个GPA符号其中可用的：
|
Operation |
Symbol |
Access Type |
Data Type |
Range |
|
Grid size |
&GSIZE |
RW |
N |
GE 0 |
|
Line density |
&DENS |
RW |
N |
[1..3] |
|
Normal |
&NORMAL |
C |
N |
=1 |
|
Heavy |
&HEAVY |
C |
N |
=2 |
|
Thin |
&THIN |
C |
N |
=3 |
For more information on GPA symbols, refer to GPA Symbol Format Summary and Global Parameter Access Symbols.