select all polylines (also 3d) at the same altitude

[micheledag]

as from object, there is a command or a routine that allows to select in a single stroke, among hundreds of level curves (polyline, 2d, 3d, even broken...) those that are at a quota that I indicate?
Thank you all.

autocad 2007 - 2014

 

[Betoniera]

View attachment SelezionaOggetto.LSP

as from object, there is a command or a routine that allows to select in a single stroke, among hundreds of level curves (polyline, 2d, 3d, even broken...) those that are at a quota that I indicate?
Thank you all.

autocad 2007 - 2014

Hello micheledag.
I made a lisp program that can help you.
it is a selection for objects:
- First ask what you want to do (copy, move, delete)
- the first selection identifies the type of object (quota, line, polyline, etc.)
- the second window locates the objects of that type
- then run the command
to run it (load "select object")

I have made others that select by color, by layer, by typeline, etc.

Hello everyone

 

[Betoniera]

Hello everyone
I realized it wasn't exactly what you were looking for.
If, however, the discriminating factor is the quota, then you could change the program where the selection is carried out according to the coordinate z. if you give us a more precise indication of how you want to operate (and maybe an example dwg) we can try to make some experiment.
Hi.

 

[Tristan]

do not need a lisp; just quick selection of autocad