Lisp like "EXTRIM", but more powerful

[ChybaKpisz]

Hi.

I am looking for lisp working like EXTRIM but can do even more.

- I want to choose many poligons

- sometimes polygons overlapping partially

- objects outside the poligons need to be trimmed and erased. Leave only what's inside the closed boundaries.

 

Is there anything like this?

Edited February 2, 2024 by ChybaKpisz

[BIGAL]

Extrim is usually pretty good but could try Cookiecutter.

 

CookieCutter2_v1.0.lsp

[ChybaKpisz]

On 2/2/2024 at 11:38 PM, BIGAL said:

Extrim is usually pretty good but could try Cookiecutter.

 

CookieCutter2_v1.0.lsp 37.44 kB · 90 downloads

Yes, extrim is good, but doesn't works simultaneously with multiple polygons.

 

I will try it.

[ChybaKpisz]

On 2/2/2024 at 11:38 PM, BIGAL said:

Extrim is usually pretty good but could try Cookiecutter.

 

CookieCutter2_v1.0.lsp 37.44 kB · 92 downloads

It works perfect, but not for multiple polygons.

[marko_ribar]

You can try BreakObjects.lsp in combination with flashpoly.lsp to get totalboundary - red shape... Then apply EXTRIM and pick point outside, but not sure for many entities as boundaries... Still it's alternative that is tested as working...

 

https://www.cadtutor.net/forum/files/file/51-breakobjectslsp/

Edited February 5, 2024 by marko_ribar

[marko_ribar]

Another approach : segment your boundaries as much as possible so that no curves could be visible... Then use WIPEOUT command at each polygon and there you are... If you need simplification, make small routine that will ask for selection (ssget) and then process each entity individualy - result should be the same...