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Error in APPID Table when importing DXF

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Gareth Jenkins

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May 10, 1999, 3:00:00 AM5/10/99
to
Hi

I keep getting the following error message when trying to import a DXF
file into AutoCAD LT 3 :

Error in APPID Table on line 658.
Invalid or incomplete DXF input -- drawing discarded.

The DXF file was generated using a dos package called WAM (Wavemaker 3),
which is probably to blame, but if anyone knows a way of loading this
file please let me know.
Thanks
--
Gareth Jenkins
Imperial College of Science and Technology
Zeneca / SmithKline Beecham Centre for Analytical Sciences
http://www.achem.ic.ac.uk/

Ian A. White

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May 10, 1999, 3:00:00 AM5/10/99
to
On Mon, 10 May 1999 17:11:09 +0100, Gareth Jenkins
<gareth....@ic.ac.uk> wrote:

> Hi
>
> I keep getting the following error message when trying to import a DXF
> file into AutoCAD LT 3 :
>
> Error in APPID Table on line 658.
> Invalid or incomplete DXF input -- drawing discarded.
>
> The DXF file was generated using a dos package called WAM (Wavemaker 3),
> which is probably to blame, but if anyone knows a way of loading this
> file please let me know.

Prior versions of AutoCAD (and LT) were not picky if an APPID entry
was not present, however if it is not there is LT3 (and the comparable
versions of the full program), it tries to read the statement
immediately after the TABLES section as an APPID entry and so
generates the error you see.

You could try a couple things. Firstly you could contact the authors
of the program which creates the DXF file and see if they have an
upgrade. You could DXFOUT a blank drawing in LT3 and copy the APPID
entry into the DXF files you have. You do need to understand DXF
files to do this.


--

Ian A. White, CPEng
WAI Engineering
Sydney 2000
Australia

Ph: +61 418 203 229
Fax: +61 2 9622 0450
Home Page: www.zipworld.net/~waiwhite

Gareth Jenkins

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May 11, 1999, 3:00:00 AM5/11/99
to waiw...@zipworld.net

"Ian A. White" wrote:

> You could try a couple things. Firstly you could contact the authors
> of the program which creates the DXF file and see if they have an
> upgrade. You could DXFOUT a blank drawing in LT3 and copy the APPID
> entry into the DXF files you have. You do need to understand DXF
> files to do this.

Thanks - after a bit of playing and a lot of guesswork, it imported just
fine!

Norbert Grund

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May 13, 1999, 3:00:00 AM5/13/99
to
On Mon, 10 May 1999 21:48:34 GMT, waiw...@zipworld.net (Ian A. White)
wrote:

>
>You could try a couple things. Firstly you could contact the authors
>of the program which creates the DXF file and see if they have an
>upgrade. You could DXFOUT a blank drawing in LT3 and copy the APPID
>entry into the DXF files you have. You do need to understand DXF
>files to do this.

You could also for example download DCONVERT from
http://www.opendwg.org or DXFIX from http://www.autodesk.com

Norbert
___
"More Power" - T. Taylor

Ian A. White

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May 13, 1999, 3:00:00 AM5/13/99
to
On Thu, 13 May 1999 00:27:40 GMT, ngr...@iname.com (Norbert Grund)
wrote:

I do not know what DCONVERT does, but DXFIX converts DXF files to a
prior release. The one that shipped with R12 converted DXF files back
to R10.

While this might overcome the problem, you need to be aware that there
are changes to objects when you convert them to an earlier release,
and this can cause even more problems, much the same as reading them
into another CAD program.

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