一个不同的策略,一个起点,剩下的取决于你。
- (setq length (getreal "\nPlease enter length m eg 0.9: "))
- (setq width (getreal "\nPlease enter width : "))
- (setq pt1 (getpoint "\npick 1st point to place Beam : "))
- (setq pt2 (polar pt1 0.0 length))
- (setq pt3 (polar pt2 1.570796 width))
- (setq pt4 (polar pt3 3.14159 length
- (command "line" pt1 pt2 pt3 pt4 "C")
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