<Selection set : 2>

(setq ss (ssget))
<Selection set: 2>
Can someone's tell me ,what meaning it "<Selection set : 2>",specially
meaning "2" or others number,thanks a lot for your help
Best regards
Ade Suharna

 

The most significant thing it tells me is that
the selection set contains objects. Ignore
the number. Its just a reporting feature for
those writing programs. A different one is
generated as part of each selection. I
believe the number is hexadecimal.

 

It doesn't really tell you a selection set contains
objects (use ssdel to remove everything, and you have
an empty selection set that displays the same thing).

The number is an intenal 'handle' (e.g., unique id),
and is used internally to identify the selection set.

Aside from that, it has no other meaning.

 

Hi Tony,

In the context of the original post it does.
(ssget) returns nil if it finds no objects. ;-)

I agree that the existance of a selection set
does not imply it contains any objects. In
fact, (ssadd) returns an empty selection set.

I also agree that the number is similar to
a handle.

Thanks for the clarifications.

Regards,
Doug

 

Sorry, didn't see anything about 'nil' in the
original post. I believe it was not the presence
of a non-nil result that was being questioned,
but rather, the numeric value in a non-nil result
that was the heart of the issue.

Nice try though

 

Hai,

At first use of (ssget) function
It gives <selection set: 1>

And in second use
It gives <selection set: 2>

and on....

The number tells how many times you used
this function

 

This is incorrect information.

 

Not true. Have you actually made several selection sets and looked at the
numbers? You should.
___

 

And as proof, in a new session of AutoCAD 2005 (look, ma! only used (ssget)
twice):

Regenerating model.

AutoCAD menu utilities loaded.
Command: adcenter

Command: properties

Command: SHEETSET

Command: TOOLPALETTES

Command: (ssget "X")
nil

Command: l LINE Specify first point:
Specify next point or [Undo]:
Specify next point or [Undo]:
Command: LINE Specify first point:
Specify next point or [Undo]:
Specify next point or [Undo]:
Command: (ssget "X")
<Selection set: 4>

Command: e ERASE
Select objects: 1 found

Select objects:
Command: (ssget "X")
<Selection set: 6>


--
R. Robert Bell


Not true. Have you actually made several selection sets and looked at the
numbers? You should.
___

 

I counted three!

 

oops. ;^)

 

I went a little further, (one line in the drawing R2005).

Command: (ssget "X")
<Selection set: 6>

Command: (ssget "X")
<Selection set: 8>

Command: (ssget "X")
<Selection set: a>

Command: (ssget "X")
<Selection set: c>

Command: (ssget "X")
<Selection set: e>

Command: (ssget "X")
<Selection set: 10>

Command: (ssget "X")
<Selection set: 12>

Bill

 

I am sorry to all

Thank you

I will put trails next time before reply

Thanks once again