Remove eXcess Vertices

Polylines contain one or more segments and every segment is essentially a line or arc. A vertex defines the start or endpoint of a segment and shows as a blue square when you select the polyline. There are many ways to create polylines. One way is a bit cleaner than the other. With the boundary command for instance it occasionally happens the polyline gets more vertices than absolutely necessary. The necessity of a vertex depends on the geometry of the polyline. If on a perfectly straight polyline are more than two vertices the vertices in between the start and end vertex are unnecessary. The ‘Remove eXcess Vertices’ command analyses the geometry of the polyline. It checks which vertices are unnecessary and will remove the ones that are, whether segments are straight or curved.
www.urbanlisp.com/command/110/...

[@xyr1nge]

there's no RXV command in my Autocad 2017? What should I do? Unknown Command

[@UrbanLISP]

You can download the command in the UrbanLISP app store at urbanlisp.com. Hope to see you there!

[@127991]

hello, thanks for the tutorial, plz can you provide the .rxv file. thanks

[@UrbanLISP]

Hi Zeeshan, you can download the command here;
www.urbanlisp.com/command/110/remove-excess-vertices/

[@127991]

is it not free ? It asking to pay 7euro ?

[@oceanlive8809]

Add a new point to a polyline?

[@amorenva]

I bought it, and every time I try it it says "1 polyline was untouched"... so... doesn't work for me. What I'm I missing? Thanks.

[@UrbanLISP]

The command relies on the precision settings of the drawing, you could try to adjust these settings.

[@lucadaros92]

@@UrbanLISP can you please provide me more details? I just downloaded it and it doesnt work I dont know how to edit these precision settings. Thank you

[@UrbanLISP]

@@lucadaros92 first of all check if there are in fact vertices that are irrelevant for the geometry of the polyline. With the LUPREC system variable you can adjust the precision of the drawing or type units in the command bar and adjust the precision in the units dialogue box.

[@tihzho]

Just now bought this LISP and I am sorry to say it does not work for me. Yes I played with LUPREC. I wrongly assumed this would take an average of the vertices in a polyline curve and create an arc within a tolerance variable to fit which it does not. I am back to manually tracing arcs along a polyline curve, unless there is something that I missed with your LISP routine.

[@UrbanLISP]

Nope, you didn't miss anything. The command analyses the polyline and removes vertices that aren't relevant for the geometry, hence the name of the command. It doesn't do interpretation.

[@markko44]

the plugin does not work,
say: "error caused by bad argument type numberp nil"

[@UrbanLISP]

Hi Markko, I am sorry to hear. Does the problem still occur? What version of AutoCAD are you using?

[@markko44]

Autocad 2022

[@UrbanLISP]

@@markko44have you tried the command in different files?

[@markko44]

yep@@UrbanLISP

[@UrbanLISP]

@@markko44, could you send me a file, or sample of the file through email?