Pline Length ... a property?
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Pline Length ... a property?

 
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trexx
Guest





Posted: Fri Feb 11, 2005 10:00 am    Post subject: Pline Length ... a property? Reply with quote

I posted this comp.cad.autocad, but perhaps this is more OT here..

Is length of a POLYLINE a property? Example: in Acad2000 I draw a Pline
with l1 vertices. I then ask for a LIST of this pline ... I get a dump of
this polyline as a LWPOLYLINE's in the
AutoCAD Text Window... and it's length is listed. But when I use
Properties, there is no length mentioned. Qselect also
appears to have no idea about polyline lengths. and yet both Qselect and
Properties know about area ... giving the same area even if I don't close
the polyline. This last point is doubly confusing to me. But my main
concern is that length
should be a property if area is...
REX

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Tracy W. Lincoln
Guest





Posted: Fri Feb 11, 2005 4:16 pm    Post subject: Re: Pline Length ... a property? Reply with quote

Try the LENGTHEN command (command alias: LEN) or even the AREA Object
command (command alias: AA).
--
Tracy W. Lincoln - TLConsulting
http://TLConsulting.blogspot.com/
Consulting, Design & Training Specialist
Autodesk Discussion Group Facilitator

"trexx" <foo@foo.com> wrote in message news:420c4fbd_3@newsprd01...
Quote:
I posted this comp.cad.autocad, but perhaps this is more OT here..

Is length of a POLYLINE a property? Example: in Acad2000 I draw a Pline
with l1 vertices. I then ask for a LIST of this pline ... I get a dump of
this polyline as a LWPOLYLINE's in the
AutoCAD Text Window... and it's length is listed. But when I use
Properties, there is no length mentioned. Qselect also
appears to have no idea about polyline lengths. and yet both Qselect and
Properties know about area ... giving the same area even if I don't close
the polyline. This last point is doubly confusing to me. But my main
concern is that length
should be a property if area is...
REX


Back to top
trexx
Guest





Posted: Fri Feb 11, 2005 6:51 pm    Post subject: Re: Pline Length ... a property? Reply with quote

Thanks... very interesting commands. How does one include length in a
selection set? I want to zap little polylines that are
smaller than a given length.
REX
"Tracy W. Lincoln" <discussion.support@autodesk.com> wrote in message
news:420c9411$1_3@newsprd01...
Quote:
Try the LENGTHEN command (command alias: LEN) or even the AREA Object
command (command alias: AA).
--
Tracy W. Lincoln - TLConsulting
http://TLConsulting.blogspot.com/
Consulting, Design & Training Specialist
Autodesk Discussion Group Facilitator

"trexx" <foo@foo.com> wrote in message news:420c4fbd_3@newsprd01...
I posted this comp.cad.autocad, but perhaps this is more OT here..

Is length of a POLYLINE a property? Example: in Acad2000 I draw a Pline
with l1 vertices. I then ask for a LIST of this pline ... I get a dump
of
this polyline as a LWPOLYLINE's in the
AutoCAD Text Window... and it's length is listed. But when I use
Properties, there is no length mentioned. Qselect also
appears to have no idea about polyline lengths. and yet both Qselect and
Properties know about area ... giving the same area even if I don't
close
the polyline. This last point is doubly confusing to me. But my main
concern is that length
should be a property if area is...
REX






Back to top
Jason Piercey
Guest





Posted: Fri Feb 11, 2005 8:11 pm    Post subject: Re: Pline Length ... a property? Reply with quote

Starting with AutoCAD 2004, polylines have a
length property.

--
Autodesk Discussion Group Facilitator



"trexx" <foo@foo.com> wrote in message news:420c4fbd_3@newsprd01...
Quote:
I posted this comp.cad.autocad, but perhaps this is more OT here..

Is length of a POLYLINE a property? Example: in Acad2000 I draw a Pline
with l1 vertices. I then ask for a LIST of this pline ... I get a dump of
this polyline as a LWPOLYLINE's in the
AutoCAD Text Window... and it's length is listed. But when I use
Properties, there is no length mentioned. Qselect also
appears to have no idea about polyline lengths. and yet both Qselect and
Properties know about area ... giving the same area even if I don't close
the polyline. This last point is doubly confusing to me. But my main
concern is that length
should be a property if area is...
REX


Back to top
Tracy W. Lincoln
Guest





Posted: Sat Feb 12, 2005 7:57 am    Post subject: Re: Pline Length ... a property? Reply with quote

AutoCAD 2002 (oldest release installed here) LISTs the area & length of an
open or closed pline.
--
Tracy W. Lincoln - TLConsulting
http://TLConsulting.blogspot.com/
Consulting, Design & Training Specialist
Autodesk Discussion Group Facilitator

"Jason Piercey" <Jason AT atreng DOT com> wrote in message
news:420ccade$1_3@newsprd01...
Quote:
Starting with AutoCAD 2004, polylines have a
length property.
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Tracy W. Lincoln
Guest





Posted: Sat Feb 12, 2005 7:59 am    Post subject: Re: Pline Length ... a property? Reply with quote

....but does not have a length property in the QSELECT or FILTER. :-(
--
Tracy W. Lincoln - TLConsulting
Autodesk Discussion Group Facilitator

"Tracy W. Lincoln" <discussion.support@autodesk.com> wrote in message
news:420d708a$1_2@newsprd01...
Quote:
AutoCAD 2002 (oldest release installed here) LISTs the area & length of an
open or closed pline.
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trexx
Guest





Posted: Sun Feb 13, 2005 11:46 pm    Post subject: Re: Pline Length ... a property? Reply with quote

Changing tactics, perhaps the Handle property is a more general way to
attack the problem of creating highly tuned selection sets. When I use
LIST I can find out the "handle" of each object. But once again QSELECT
and FILTER do not seem to know the most basic of all entity properties...its
handle! Maybe there is another keyboard command that would allow one to
produce a selection set with KNOWN handles. If not, perhaps there a simple
series of Lisp commands which will select an entity by its handle? If
either of these methods exist, I want to experiment with:
1. dxfout a drawing and parse it with an external program...
2. select entities in the dxf which I want to change/delete etc. and then...
3. produce a set of handles of said entities
4. and then through simple script of keyboard commands or Lisp commands to
create this highly tuned selection set

REX

"Tracy W. Lincoln" <discussion.support@autodesk.com> wrote in message
news:420d7124_2@newsprd01...
Quote:
...but does not have a length property in the QSELECT or FILTER. :-(
--
Tracy W. Lincoln - TLConsulting
Autodesk Discussion Group Facilitator

"Tracy W. Lincoln" <discussion.support@autodesk.com> wrote in message
news:420d708a$1_2@newsprd01...
AutoCAD 2002 (oldest release installed here) LISTs the area & length of
an
open or closed pline.

Back to top
Tracy W. Lincoln
Guest





Posted: Mon Feb 14, 2005 2:10 am    Post subject: Re: Pline Length ... a property? Reply with quote

You can go to http://www.cadlantic.com and see John Uhden's Freebies page,
there is a utility called KILLDOTS.LSP which can be downloaded (and I assume
modified to suite your length requirements). I would recommend searching
for or asking in the Customization discussion group...

Last thing, as mentioned by Jason, 2004 & 2005 have the length properties
which make using QSELECT a fairly simple tool to select plines of any
length.
--
Tracy W. Lincoln - TLConsulting
http://TLConsulting.blogspot.com/
Consulting, Design & Training Specialist
Autodesk Discussion Group Facilitator

"trexx" <foo@foo.com> wrote in message news:420f9e9c$1_1@newsprd01...
Quote:
Changing tactics, perhaps the Handle property is a more general way to
attack the problem of creating highly tuned selection sets. When I use
LIST I can find out the "handle" of each object. But once again QSELECT
and FILTER do not seem to know the most basic of all entity
properties...its
handle! Maybe there is another keyboard command that would allow one to
produce a selection set with KNOWN handles. If not, perhaps there a
simple
series of Lisp commands which will select an entity by its handle? If
either of these methods exist, I want to experiment with:
1. dxfout a drawing and parse it with an external program...
2. select entities in the dxf which I want to change/delete etc. and
then...
3. produce a set of handles of said entities
4. and then through simple script of keyboard commands or Lisp commands
to
create this highly tuned selection set

REX
Back to top
 
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