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 - ;;通用做法
- (defun outpt (e / bp up)
- (if (vlax-curve-isclosed e)
- (progn
- (vla-getboundingbox (vlax-ename->vla-object e) 'bp 'up)
- (setq bp (safearray-value bp)
- up (safearray-value up)
- )
- (polar up (angle bp up) 1.)
- )
- )
- )
- ;;对自相交线可能有问题
- (defun outpt (e / oa outl l)
- (if (vlax-curve-isclosed e)
- (progn
- (setq oa (vlax-curve-getarea e))
- (if (setq outl (safearray-value
- (variant-value
- (vla-offset (vlax-ename->vla-object e) 0.01)
- )
- )
- )
- (progn
- (if (< (vlax-curve-getarea (car outl)) oa)
- (progn (mapcar 'vla-delete outl)
- (setq outl (safearray-value
- (variant-value
- (vla-offset
- (vlax-ename->vla-object e)
- -0.01
- )
- )
- )
- )
- )
- )
- (setq p (vlax-curve-getstartpoint (car outl)))
- (mapcar 'vla-delete outl)
- p
- )
- )
- )
- )
- )
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