HDTenEightyP/NetNews huggingface dataset:
From: bryanh@dseg.ti.com (Bryan Hazel)
Subject: Octree Representation In R. 12
Reply-To: bryanh@dseg.ti.com
Organization: Just Me
Date: Wed, 22 Jul 1992 18:35:08 GMT

Anyone care to elaborate on the so-called 'octree' database representation used
in AutoCAD R. 12?

Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Organization: RMIT
X-Mailer:     Pegasus Mail v2.3 (R2).
Newsgroups: alt.cad.autocad
Date:         Wed, 29 Jul 1992 09:26:17 UTC+1000
From:         Peter Clark <Clark@RMIT.EDU.AU>
Subject:      Re: PolyLine definition for Arcs and Circles
X-To:         alb@AIS.ORG, AUTOCAD@OHSTVMA.ACS.OHIO-STATE.EDU

>Date:          Tue, 28 Jul 1992 19:53:13 GMT
>Reply-to:      AUTOCAD Autocad Discussion List
 <AUTOCAD@OHSTVMA.ACS.OHIO-STATE.EDU>
>From:          Alan Brushaber <alb@AIS.ORG>
>Subject:       PolyLine definition for Arcs and Circles
>To:            Multiple recipients of list AUTOCAD <AUTOCAD@OHSTVMA.BITNET>

>Question:
>
>Given a center and radius for a circle or same plus start/end points
>with a direction for arcs, does anyone know what might be the best
>way to represent circular elements using a Polyline definition?
>
>Thanks for any input.
>
>Al - alb@ais.org

...if I understand your request correctly, the DONUT command with
equal inner and outer diameters creates a PLINE entity which is
circular...the DONUT command is normally used with unequal diameters
which are used to specify a constant width for the polyline to
produce a segmented "donut"...if you wish instead to use the PLINE
command, after specifying a start point, use the Arc option, then use
Direction (say, 0 degrees), then specify an endpoint with relative or
polar coords to draw a semicirular arc, or use an Angle of 180
degrees to achieve the same, then CLose, and that will draw a
circular polyline...you'll probably find the DONUT technique faster...

cheers,
Peter

----------------------------------------------------------------------
 Peter Clark   Principal Lecturer                   clark@rmit.edu.au
 Environmental Design and Construction  clark@fedcdos.edc.rmit.edu.au
 Royal Melbourne Institute of Technology  rarpjc@minyos.xx.rmit.oz.au
 (RMIT)          tel +61 3 660 2226          fax +61 3 663 2891
----------------------------------------------------------------------
Newsgroups: alt.cad.autocad
From: ebeatty@andy.bgsu.edu (Eric A. Beatty)
Subject: AutoCAD Educational Discount
Organization: Bowling Green State University B.G., Oh.
Date: Sun, 26 Jul 1992 23:36:26 GMT

Greetings!

Does anyone out there have any information on Autodessk's
educational discount for faculty and graduate students
purchasing AutoCAD?  The announcement that I read in CADENCE
magazine said that for $875 one could purchase a hardware
locked, fully functional copy of Release 11 and AME 2.0.

My question is, will this offer be extended to include Release
12?  What is the upgrade path for this kind of deal.  Do you
purchase it and get left behind because you cannot upgrade or
can you purchase upgrades just like any other registered AutoCAD
user.

Please post any replies or e-mail me directly.  I read this newsgroup
every day.

Thanx!

*******************************************
*                                         *
*  Eric A. Beatty                         *
*  Instructor of Computer Aided Design    *
*  College of Technology                  *
*  Bowling Green State University         *
*  Bowling Green, Ohio 43403              *
*                                         *
*  (419) 372-7469                         *
*                                         *
*  Internet: ebeatty@andy.bgsu.edu        *
*                                         *
*******************************************

Newsgroups: alt.cad.autocad
From: alb@ais.org (Alan Brushaber)
Subject: Mapping Arcs to PolyLine definition in DXF
Organization: UMCC
Date: Thu, 30 Jul 1992 12:51:44 GMT


Someone on the list suggested I re-word a recent question I had
posed to this group.

I need to represent circles/arcs in a DXF file using Polylines so to
take advantage of the line weight attribute.

Does anyone know a good way to map circular information (center, radius,
start point, end point, etc.) into a DXF Polyline definition?

Thanks for any input.

Al - alb@ais.org

Newsgroups: alt.cad.autocad
From: n8443916@henson.cc.wwu.edu (John Gossman)
Subject: Re: Autocad 10/11 DWG files
Organization: Western Washington University
Date: Fri, 31 Jul 1992 19:06:46 GMT

jawatson@mtu.edu (JANET C. WATSON) writes:

>In article <9697@harrier.ukc.ac.uk>, bg@ukc.ac.uk (G.S.Briggs) writes:
>> I am running autocad 10 at home (on a 386sx), whilst the college where
>> I work has recently upgraded to Autocad 11. What I am wondering is
>> whether I can can get autocad 11 to write DWG files in a format that
>> autocad 10 will accept; I know that aautocad 11 will read my autocad
>> 10 dwg files, but does it work the other way around. The alternative
>> is to upgrade to release 11 myself; but I wonder whether my machine
>> (16MHz 386sx with 2M RAM) is up to the task of running release 11.
>> 
>> Does anyone have any comments?
>> 
>> G.S.Briggs, University of Kent, England : bg@ukc.ac.uk

>Your machine should be able to run rel 11.  I don't thing you can read from 
>11 to 10.  Rel 11 has stuff that rel 10 doesn't understand.  It would be a 
>mess if you were even able to bring the drawing on the screen.  Your best
>bet would be to upgrade.

	There are very few things in Rel. 11 that cannot be translated back
to Rel. 10.  One is polyface polylines another is extended data.  You can
even transfer the AutoSolid Entities back to Rel 10, but you lose the 
properties information (density, materials etc).
	To get back to Rel 10, use DXF.  Autodesk provides a tool called
DXFIX that back translates DXF to previous versions.  Alternatively there
are other programs that do this in public domain (try CompuServe) and
commercially (try AutoCAD dealer or magazines).

	JG
Newsgroups: alt.cad.autocad
From: alb@ais.org (Alan Brushaber)
Subject: PolyLine definition for Arcs and Circles
Organization: UMCC
Date: Tue, 28 Jul 1992 19:53:13 GMT



Question:

Given a center and radius for a circle or same plus start/end points
with a direction for arcs, does anyone know what might be the best
way to represent circular elements using a Polyline definition?

Thanks for any input.

Al - alb@ais.org

Newsgroups: alt.cad.autocad
From: kevin@cadzook.ColumbiaSC.NCR.COM (Kevin.Dailey)
Subject: Looking for CAD Software
Organization: NCR MCPD Columbia SC.
X-Newsreader: Tin 1.1 PL3
Date: Thu, 30 Jul 92 12:04:42 GMT

	Hi,

	I hope someone out there has some information I am in need of.
	I am looking for CAD Software specifically used for design and 
	drafting of Cables & Wiring Harnesses.  I would prefer something
	working with AutoCAD but am evaluating any/all packages for this
	specific application.  Would be interested in 3D or 2D packages.
	I am only familiar with one package so far and that is PRO-Cabling
	(sp?) which is an add on module for ProEngineer by Parametrics
	Technology.  Your help will be much appreciated.

								Thanks,

								Kevin
 
--
 Kevin E. Dailey - NCR Corporation [Midrange Computer Products Div. - Columbia]
 Phone : 803-791-6432    FAX: 803-791-7317 |Street  : 3325 Platt Springs Rd.
 E-mail: Kevin.Dailey@ColumbiaSC.NCR.COM   |Address : West Columbia, SC 29170
        !uunet!ncrcom!ncrcae!cadzook!kevin |(Dept. 85 - Unit Development, MSBU)
Newsgroups: alt.cad.autocad
From: dyck@cs.sfu.ca (Michael Dyck)
Subject: the order in which entities are drawn
Organization: CSS, Simon Fraser University, Burnaby, B.C., Canada
Date: Thu, 23 Jul 1992 17:49:40 GMT

If you have a bunch of intersecting entities [all lying in the Z=0
plane], which comes out 'on top'?

AutoCAD (release 11) appears to use some sort of painting metaphor, so
that the appearance of the drawing depends on the order in which
entities are drawn.  So what determines that order?

Note that it's NOT simply the order in which they're created:  if you
create a solid, then a line, then a solid, the line isn't sandwiched
between the solids, it comes out on top. On the other hand, it is
possible to have a solid drawn over top of a line.

-Michael Dyck, dyck@cs.sfu.ca
From: Clark@RMIT.EDU.AU (Peter Clark)
Newsgroups: alt.cad.autocad
Subject: Re: Differences?
Date: 22 Jul 92 06:33:30 GMT
Organization: RMIT
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
X-Mailer:     Pegasus Mail v2.3 (R2).
X-To:         billr@theopolis.orl.mmc.com, AUTOCAD@OHSTVMA.ACS.OHIO-STATE.EDU

>Date:          Tue, 21 Jul 1992 14:15:17 GMT
>From:          Bill Richmond <billr@theopolis.orl.mmc.com>
>Subject:       Differences?

>   I am trying to discover the significant differences
>between v11, v11 for Windows, & v12 of Autocad...Any help
>you can give me would be greatly appreciated. I don't usually
>read this group so please respond via email...Thanks in advance...

...firstly, ask your local autocad dealer to provide you with the
relevant documents..Autodesk provide them with the information
precisely so they can keep users informed..r12 autocad has too many
new feature and enhancements to elaborate here, but the main
enhancements/features are graphics acceleration, an upgraded
graphical user interface, an SQL interface, visualisation extensions
including inboard rendering ( like AutoShade 2) and raster file I/O,
advanced modelling extension v2.1, entity grips, new hatch command,
faster lisp execution, enhancements to the C and Turbo C interface,
plotting preview, postscript support, etc and much more...





----------------------------------------------------------------------
 Peter Clark   Principal Lecturer                   clark@rmit.edu.au
 Environmental Design and Construction  clark@fedcdos.edc.rmit.edu.au
 Royal Melbourne Institute of Technology  rarpjc@minyos.xx.rmit.oz.au
 (RMIT)          tel +61 3 660 2226          fax +61 3 663 2891
----------------------------------------------------------------------
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: alt.cad.autocad
Date:         Thu, 30 Jul 1992 06:58:43 CDT
From:         FRS1000 <FRS1@JSUMUS.BITNET>
Subject:      Cross-hair and UCS icon color

David-

No, not within AutoCAD.  Not with the 8514 driver.  Only with the
SVADI driver and with the SVCONFIG file outside the program as far
as I know.  The SVADI program is found on one of the distribution
disks which is not ordinarily loaded when you load AutoCAD.  You
must install the driver individually and it will install in a
seperate directory on your hard disk.  I would suggest that you
install this material and configure your video driver for the
ADI driver 4.1 (I think, you can try both options and see which
works better).  Remember, the SVADI driver must be loaded first
before entering AutoCAD.  I do it in a batch file so it's automatic.

To configure the different color options, getout of AutoCAD and use
SVCONFIG.  You will be prompted for the different options from a menu.
This driver is the same as is used in the standard version of Version 12
by the way.

Hope this helps.

Ron
From: psmedsha@ecst.csuchico.edu (Paul Smedshammer)
Newsgroups: alt.cad.autocad
Subject: AutoCAD for Windows to Excel
Keywords: Spreadsheet
Date: 22 Jul 92 20:01:40 GMT
Organization: California State University, Chico

Hello.  This is my first question in this group.  I hope that this is an
appropriate post in this group.

     My problem is that my boss would like to use AutoCAD for Windows to
link to an Excel spreadsheet.  What we would like to do is create a drawing
using blocks and then export the number of certain blocks used to Excel in 
order to create an estimate of the drawing.  Lets say that I was making a 
drawing of a sprinkler system.  I would have already created blocks for 
different fittings, sprinklers, and pipe.  Now after the drawing is finished
I would like to export the total number of fittings A, total number of
fittings B, total number of sprinklers, and the total number of Pipe blocks
used.
      I have exported the drawings using DDE but it doesn't seem to be in a
usable format.  Especially if it is a rather large drawing I will get a very
large listing of elements with information that I don't need.  All I would
like is the number of individual block types used.
      I know this must be possible because I saw the same sort of thing in
an add for AutoCAD for Windows.  Is there an easy way to do this or a book
that I could buy that had this information in it?  If I just had one example
I could accomplish our desired task.  Thanks for any help you can give us.


------------------------------------------------------------------------------
psmedsha@ecst.csuchico.edu (Paul Smedshammer)

Graduate Student in Mechanical Engineering
California State University at Chico
------------------------------------------------------------------------------
From: "joe labonte" <joe.labonte@canrem.com>
Newsgroups: alt.cad.autocad
Subject: stereolithography and
Date: 31 Jul 92 14:25:20 EST
Reply-To: "joe labonte" <joe.labonte@canrem.com>
Distribution: alt
Organization: Canada Remote Systems


EA>I am trying to find out if AutoCAD's AME 2.0 is capable of generating
EA>STL files for use with a stereolithography machine.

I looked into the manual and there is a sample program called SOLSTLOUT
used to create the STL output.  There are a few paragraphs on Warnings
and there is a not that there is also an Autolisp program called
STLSUP.LSP.

I would have no idea how well this works but I would love to work with
the stereolithography technology.

Good Luck.


Joe Labonte , Guelph, Ontario, Canada     (Brampton Node)
Using Canada Remote System (CRS)
Compuserve & Internet please reply to:
>INTERNET:JOE.LABONTE@canrem.com
---
  DeLuxe/386 1.25 #11355  Nothing is good, But thinking makes it so..
--
Canada Remote Systems  - Toronto, Ontario/Detroit, MI
World's Largest PCBOARD System - 416-629-7000/629-7044
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Organization: RMIT
X-Mailer:     Pegasus Mail v2.3 (R2).
Newsgroups: alt.cad.autocad
Date:         Tue, 28 Jul 1992 09:34:25 UTC+1000
From:         Peter Clark <Clark@RMIT.EDU.AU>
Subject: Re: cross-sectional view
X-To:         PHSHL@wombat.newcastle.edu.au, autocad@ohstvma.acs.ohio-state.edu

>Subject:       Re: cross-sectional view

>Hi Peter,
>  Thanks once again for providing the tips. I have gone through the manual
>many times, and did not pick up this technique. I wonder if you have a
 suggestion
>for a good book in this area?
>Lee

....the acad reference manual is just that, a reference for
detailed descriptions of command execution, operations and
features...it does not attempt to cover techniques related to
user applications...try AutoCAD 3D Design and Presentation by New
Riders Publishing, ISBN 0-934035-81-4

Cheers,
Peter

----------------------------------------------------------------------
 Peter Clark   Principal Lecturer                   clark@rmit.edu.au
 Environmental Design and Construction  clark@fedcdos.edc.rmit.edu.au
 Royal Melbourne Institute of Technology  rarpjc@minyos.xx.rmit.oz.au
 (RMIT)          tel +61 3 660 2226          fax +61 3 663 2891
----------------------------------------------------------------------
Newsgroups: alt.cad.autocad
From: dyck@cs.sfu.ca (Michael Dyck)
Subject: Re: the order in which entities are drawn
Organization: CSS, Simon Fraser University, Burnaby, B.C., Canada
Date: Tue, 28 Jul 1992 03:05:36 GMT

In article <1992Jul23.174940.2832@cs.sfu.ca>, I wrote:

> If you have a bunch of intersecting entities [all lying in the Z=0
> plane], which comes out 'on top'?
> 
> AutoCAD (release 11) appears to use some sort of painting metaphor, so
> that the appearance of the drawing depends on the order in which
> entities are drawn.  So what determines that order?
> 
> Note that it's NOT simply the order in which they're created:  if you
> create a solid, then a line, then a solid, the line isn't sandwiched
> between the solids, it comes out on top. On the other hand, it is
> possible to have a solid drawn over top of a line.

Here is some AutoLISP code that explores AutoCAD's 'painting' order:

(command
  "color" "magenta" "line"  "3,8" "7,2" ""
  "color" "red"     "line"  "3,2" "7,8" ""
  "color" "cyan"    "solid" "2,7" "4,7" "6,3" "8,3" ""
  "color" "white"   "solid" "4,2" "6,2" "4,8" "6,8" ""
  "color" "blue"    "line"  "2,3" "8,7" ""
  "color" "green"   "solid" "2,4" "2,6" "8,4" "8,6" ""
  "redraw"
)

When I try this, the entities are painted in the following order:
    magenta cyan white red green blue

I can account for this behaviour with the following rule:
    Entities are painted in creation order, except that a line
    is painted after any solids that immediately follow it.
Of course, it's impossible to prove this is *the* rule.

Moreover, I found this at the beginning of Chapter 7 of the
AutoCAD reference manual:
    ... the order in which AutoCAD draws objects is independent of
    their layers and may vary from one editing session to next.
So I guess Autodesk isn't going to reveal anything.

-Michael Dyck, dyck@cs.sfu.ca
From: blu@cellar.org (Dan Reed)
Newsgroups: alt.cad.autocad
Subject: Re: conflict with graphics adapter Artist XJi
Date: 29 Jul 92 14:55:47 GMT
Organization: The Cellar BBS and public access system

MICCHETT@VM.CSATA.IT writes:

> I installed Artist XJi on Compaq Deskpro 386/20e and run acad11 with adi
> driver Artist inserted in Flexicon Toolkit. After tree or four command in
> editor mode the system halted and restart only with power off.
> The system signals "Parity check 2 ??????".
> Any help appreciated.
> Saverio


Take your machine back.. its the machine, not an AutoCAD or ACAD related 
software problem.  It *could* be the SIMs conflicting with the Artist Card.

If you pull the card, and its fixed, than its the card, otherwise its the 
machine.  Last night my freind was shipping his GoldStar back to them for the 
same reason..

Its a hardware thing..

----- 
 Dan Reed (Blu-Max) blu@cellar.org - AutoCad Geek - VW Lover - InlineSkater 
68' Cougar, 89 VW Golf, 72 Honda CB 360Twin.. what next?
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: alt.cad.autocad
Date:         Mon, 27 Jul 1992 09:34:55 MET
From:         MICCHETT@VM.CSATA.IT
Subject:      conflict with graphics adapter Artist XJi

I installed Artist XJi on Compaq Deskpro 386/20e and run acad11 with adi
driver Artist inserted in Flexicon Toolkit. After tree or four command in
editor mode the system halted and restart only with power off.
The system signals "Parity check 2 ??????".
Any help appreciated.
Saverio
From: drake@Autodesk.COM (Dan Drake)
Newsgroups: alt.cad.autocad
Subject: Re: Mapping Arcs to PolyLine definition in DXF
Date: 31 Jul 92 18:16:49 GMT
Organization: Autodesk Inc., Sausalito CA, USA

alb@ais.org (Alan Brushaber) writes:
> 
> ...
> 
> I need to represent circles/arcs in a DXF file using Polylines so to
> take advantage of the line weight attribute.
> 
> Does anyone know a good way to map circular information (center, radius,
> start point, end point, etc.) into a DXF Polyline definition?
> 
> ...

If you have the start and end point, all you need is the Bulge.

Compute the angle subtended by the arc.  Simple-minded: use atan2() to
compute the angle of elevation of the line from the center to the start
point; ditto end point; take end_angle - start_angle; add 2*pi if it's
negative.

Compute tan(that / 4.0); make the sign positive if the arc was
counter-clockwise and negative if clockwise.

Output a DXF polyline header, with the default-width fields set to
whatever width you chose; then a Vertex giving the first point and the
bulge you computed; then a Vertex with the second point; then a SEQEND.
No width information is required in anything but the header.
      
You can reduce your calls on transcendental functions by computing the
bulge from 
tan(acos(V1 .  V2) / 4) 
where V1 and V2 are the vectors from center to start-point and
end-point, and .  is the dot product.  However, you need to be very
careful about major and minor arcs, clockwise and counter-clockwise.

Unfortunately, Bulge notation goes infinite for circles, so a Polyline
can't have a single full-circle segment.  Use 2 vertices at the ends of
a diameter; set the Closed bit in the header; give each vertex a bulge
of 1.

Hope this helps.


--
Dan Drake
drake@Autodesk.com
Newsgroups: alt.cad.autocad
From: mic@cs.ubc.ca (Michelangelo Grigni)
Subject: SVHS recording, Ventek
Organization: Computer Science, University of B.C., Vancouver, B.C., Canada
Date: Mon, 27 Jul 92 05:56:28 GMT

(Posted for Mario Grigni)

Does anyone have experience recording SVHS from AutoCAD (either live
or from "slide shows")?  This would be to produce simple architectural
walk-through tapes.

In particular I am considering the Ventek Chroma card, which outputs
NTSC S-Video with 2^15 colors, and it claims to have an ADI driver.
However I have not been able to find a dealer with this card, so I do
not know what color ranges are actually available under AutoCAD or
AutoShade, nor how well they record.

I would appreciate any recommendations regarding this or similar 
video cards.





Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: alt.cad.autocad
Date:         Thu, 23 Jul 1992 08:24:10 PDT
From:         Andy Bouffard <esri!england!andyb@UUNET.UU.NET>
Subject:      Re: Layer Question
X-To:         uunet!OHSTVMA.ACS.OHIO-STATE.EDU!AUTOCAD@uunet.UU.NET

Alan,
  From within AutoCAD, using the AutoLISP or ADS tools to
create entities, entmake and ads_entmake, if you specify
a layer that does not yet exist one will be created for you
with default layer properties.  If you use the drawing tools
as an end user to create the entities, LINE, PLINE, etc., then
the entities will be created on the current layer and you will
not be able to create a new layer directly.
  If you are talking about modifying the DXF file yourself, from
outside AutoCAD, then you will have to take care that you create
new layers in the layer table when you want to put entities on
them.
  Hope this makes sense...

Andy Bouffard
ESRI, Redlands
abouffard@esri.com

>
>   I'm new to this list and AutoCAD/DXF stuff, so I suppose my questions
> show just how green I am, but here's another one:
>
>   Question: Does anyone know if there's a problem specifying LAYERS for
> entities (on the 'fly' so-to-speak) that haven't been declared in a LAYER
> TABLE in the TABLES Section? (without doing any damage, of course:). I
> don't know up front what the layer names will be.
>
>   Thanks for any info.
>
> Al - alb@ais.org, alb%cod@aaaca1.sinet.slb.com
>
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
X-Vms-From: PSI%AAACA1::COD::ALB          "Alan L. Brushaber - Ann Arbor -
            313-995-6227"
X-Vms-To: AUTOCAD,ALB
Newsgroups: alt.cad.autocad
Date:         Wed, 22 Jul 1992 18:48:20 GMT
From:         "Alan L. Brushaber - Ann Arbor - 313-995-6227"
              <alb%cod@AAACA1.SINET.SLB.COM>
Subject:      Layer Question

  I'm new to this list and AutoCAD/DXF stuff, so I suppose my questions
show just how green I am, but here's another one:

  Question: Does anyone know if there's a problem specifying LAYERS for
entities (on the 'fly' so-to-speak) that haven't been declared in a LAYER
TABLE in the TABLES Section? (without doing any damage, of course:). I
don't know up front what the layer names will be.

  Thanks for any info.

Al - alb@ais.org, alb%cod@aaaca1.sinet.slb.com
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
X-Vms-From: PSI%AAACA1::COD::ALB          "Alan L. Brushaber - Ann Arbor -
            313-995-6227"
X-Vms-To: AUTOCAD,ALB
Newsgroups: alt.cad.autocad
Date:         Wed, 22 Jul 1992 15:16:49 GMT
From:         "Alan L. Brushaber - Ann Arbor - 313-995-6227"
              <alb%cod@AAACA1.SINET.SLB.COM>
Subject:      Switching between Inch <-> Metric

Greetings,

  If you have a DXF file in, say Metric, is there an easy way to
convert this to Inch?

Al - alb@ais.org, alb%cod@aaaca1.sinet.slb.com