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发表于 2012-11-7 08:26
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来自: 中国广东中山
那個F是指向艏的意思,從你定義的原點向艏22.85m(原點的位置基本會定義在船舯位置)
參見:
CrtPt [(n)] {[[description] l,t,v ]
Parameter | Description
| (n)
| number of the critical point. If (n) is absent, and OFF is specified, then all critical points are deleted. If (n) is absent, but OFF is not specified, then the next available number is used. If (n) already exists, it will be redefined.
| description
| optional description
| l,t,v
| location of the point
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