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Lisp to insert points along polyline at endpoints & midpoints

Quango1

By Quango1
in AutoLISP, Visual LISP & DCL

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XDSoft Contributor

XDSoft

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On 2/8/2024 at 10:19 PM, PabloS said:

Hello @Tharwat

 

Would you mind helping me with a similar but complex problem? I need to add small lines (45º angle relative to polyline) only on outwards vertex of polylines like this:

 

image.png.f1a1984b8ff48770304ae2499e9ca3da.png

 

Also if selected object is a circle I need to add 4 small lines in 45º angle like this:

image.png.3a585fd2759f8ece1651d6366ac7cb88.png

 

Hope you can help me here!

 

Regards,

Pablo

 

这里有一个： [PlugIn(114)]Drawing lines on every outwards polyline node (theswamp.org)

http://www.theswamp.org/index.php?topic=59394.0

 

 

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ronjonp
ronjonp

Another: (defun c:foo (/ n p s) (if (setq s (ssget '((0 . "LWPOLYLINE")))) (foreach e (vl-remove-if 'listp (mapcar 'cadr (ssnamex s))) (setq n 0) (while (setq p (vlax-curve-getpoi

mhupp
mhupp

Should be what your looking for.   (defun C:PP (/ SS vla SPT MPT EPT) (prompt "\nSelect Polylines") (if (setq SS (ssget '((0 . "*POLYLINE")))) (foreach poly (vl-remove-if 'listp (mapca

Steven P
Steven P

Try this,    It works by drawing temporary plines each 1 element of your selection, and using Tharwats code to plot points at their end and mid points.   EDITED... it adds multiple

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