A AutoLISP Function that breaks any lines that intersect with a selected line?

[JimmyJohn]

Title above! I need help creating a lisp routine to do the above. As I want to be able to draw a square around an area, select the square, run the function, and have it all break so I can cleanly excise anything within the selected area. Any help would be greatly appreciated!

[marko_ribar]

I don't follow you... But perhaps, CAB's BreakObjects.lsp can help...

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

[BIGAL]

Agree with @marko_ribar you can then look for segments of a length and delete.

 

 

[SLW210]

If the end game is to isolate what's inside the square, why the need to break anything?

 

Maybe post a .dwg with before and after noting what you need to do with objects in the square.

[Steven P]

I got distracted today, have half a LISP that will delete anything outside a polyline (good to shrink a drawing size if I only want a small part of say, a plan).... it didn't break lines and delete any outside the selected area.. but from there might be an easy conversion to what you want. In the office tomorrow so got to look half busy at least, might have another look

[BIGAL]

@Steven P is that not extrim command or Cookie cutter.lsp

[Steven P]

4 hours ago, BIGAL said:

@Steven P is that not extrim command or Cookie cutter.lsp

 

Like everything I want to add extras.... but yes

[Dahzee]

Maybe this from JTB World?

 

https://jtbworld.com/jtb-trimwindow

[SLW210]

CookieCutter2 by Joe Burke, you should be able to find it.

 

He is active on Autodesk Forums.