topic Re: Sub object selection problem in Visual LISP, AutoLISP and General Customization Forum

Sub object selection problem

marko_ribar — Wed, 20 Dec 2017 14:25:17 GMT

I don't have replies for the question I posted here : https://www.theswamp.org/index.php?topic=53750.0

So I thought I could try on another forum...

Thanks, M.R.

Re: Sub object selection problem

marko_ribar — Wed, 20 Dec 2017 16:31:43 GMT

I've found solution by firstly deleting existing logfile, then using LOGFILEON command in conjunction with LIST command and LOGFILEOFF command - inspecting log file and at the end deleting log file... - logfile : (getvar 'logfilename)...

Thanks for your attention...

Re: Sub object selection problem

_gile — Wed, 20 Dec 2017 16:43:27 GMT

Hi,

I'm not sure to understand what you're trying to do, but you have to keep in mind that what AutoCAD calls "sub objects" are faces, edges and vertices of 3s solids, surfaces or meshes.

(ssget "_:V") works the same as selecting objects with the Ctrl key down.

But the selection set returned by (setq ss (ssget "_:V")) only contains the main entities.

Re: Sub object selection problem

marko_ribar — Wed, 20 Dec 2017 16:49:42 GMT

@_gile

I am aware what I am doing, that was just example of code, but in fact I've changed in my lisp to use command SELECT with SU (SUbobject) option... Everything is now working, I only have annoying prompting while execution of routine and I have to press ENTER after several checking of LIST and what I've explained in my solution... I'll see to try to fix this...

Re: Sub object selection problem

marko_ribar — Thu, 21 Dec 2017 07:48:05 GMT

I've fixed those annoying prompts by changing usage of LIST command with (vl-cmdf "_.SELECT") (while (< 0 (getvar 'cmdactive)) (vl-cmdf "")) and no more pressing ENTER while routine works... But unfortunately it turns now that I have another problem which can't be solved through my algorithm... It's not that algorithm is bad, but problem is 3D in all 3 projections combined if sub objects overlap in projections - this means always 2 or more selected entities while SELECT -> SU -> CP -> (mapcar '+ '(-5e-2 -5e-2) pt) (mapcar '+ '(5e-2 -5e-2) pt) (mapcar '+ '(5e-2 5e-2) pt) (mapcar '+ '(-5e-2 5e-2) pt)... But at least it works well if overlap is in TOP view and in FRONT and LEFT there are no overlaps...