[comp.graphics] IGES, DXF File Format Specification needed

madhu@hubcap.UUCP (Raman Madhusudan) (11/21/88)

Greetings:
	Where could I Obtain the IGES and DXF file format 
	Specifications. Who "owns" these formats and where
	would I be able to get the updates on any changes etc.
	 (??).
		Thanks in advance to any Kind netters for their help.
		Please E-mail replies to :
		madhu@hubcap.clemson.edu
		Or
		!gatech!hubcap!madhu
		--thanks a lot!
		madhu@hubcap.clemson.edu
		.

jbn@glacier.STANFORD.EDU (John B. Nagle) (11/22/88)

In article <3611@hubcap.UUCP> madhu@hubcap.UUCP (Raman Madhusudan) writes:
>Greetings:
>	Where could I Obtain the IGES and DXF file format 
>	Specifications. Who "owns" these formats and where
>	would I be able to get the updates on any changes etc.

     The DXF format is AutoCAD's external format for drawing interchange.
Look in any AutoCAD manual.  It's an ASCII text file, rather bulky but
not too difficult to process.   Autodesk, Inc., (Sausalito CA) defines
DXF format.  

     IGES, the Interim Graphics Exchange Standard, is an industry draft
standard for drawing exchange.  I don't know the controlling organization
offhand, but it's not ANSI; the standard isn't that well developed yet.
IGES files are organized as 80-character fixed format ASCII text records,
and are somewhat FORTRAN-oriented.

					John Nagle

fowler@cme-durer.ARPA (Jim Fowler) (11/22/88)

In article <17859@glacier.STANFORD.EDU>, jbn@glacier.STANFORD.EDU (John B. Nagle) writes:
> In article <3611@hubcap.UUCP> madhu@hubcap.UUCP (Raman Madhusudan) writes:
> >Greetings:
> >	Where could I Obtain the IGES and DXF file format 
> >	Specifications. Who "owns" these formats and where
> >	would I be able to get the updates on any changes etc.
> 
>      The DXF format is AutoCAD's external format for drawing interchange.
> Look in any AutoCAD manual.  It's an ASCII text file, rather bulky but
> not too difficult to process.   Autodesk, Inc., (Sausalito CA) defines
> DXF format.  
> 
>      IGES, the Interim Graphics Exchange Standard, is an industry draft
> standard for drawing exchange.  I don't know the controlling organization
> offhand, but it's not ANSI; the standard isn't that well developed yet.
> IGES files are organized as 80-character fixed format ASCII text records,
> and are somewhat FORTRAN-oriented.
> 
> 					John Nagle


IGES = Initial Graphics Exchange Specification. It was first
published in 1980, the current version (4.0) has just been released.
As for it not being well developed, that's a matter of opinion:
it's sufficiently well developed to be supported by all major CAD
vendors and the bulk of the spec. has been submitted to ANSI for
approval. NIST (formerly National Bureau of Standards) is the
controlling organization.

For further information contact:
	Mrs. Gaylen Rinaudot
	IGES Coordinator
	National Institute of Standards and Technology
	Building 220, Room A127
	Gaithersburg, MD 20899
	(301) 975-3547

------------------------------------------------------------------------
Jim Fowler
<fowler@cme-durer.arpa>

"The great thing about standards is that there are so many of them."

ray3rd@ssc-vax.UUCP (Ray E Saddler III) (11/22/88)

In article <17859@glacier.STANFORD.EDU>, jbn@glacier.STANFORD.EDU (John B. Nagle) writes:
> In article <3611@hubcap.UUCP> madhu@hubcap.UUCP (Raman Madhusudan) writes:
> >	Where could I Obtain the IGES and DXF file format 
> >	Specifications. Who "owns" these formats and where
> >	would I be able to get the updates on any changes etc.
> 
>      IGES, the Interim Graphics Exchange Standard, is an industry draft
> standard for drawing exchange.  I don't know the controlling organization
> offhand, but it's not ANSI; the standard isn't that well developed yet.
> IGES files are organized as 80-character fixed format ASCII text records,
> and are somewhat FORTRAN-oriented.
>

My document for version 2.0 (NBSIR 82-2631) defines the acronym IGES as:
Initial Graphics Exchange Specification, and is prepared by the
National Bureau of Standards.

The address on the cover sheet is:

		U.S. DEPARTMENT OF COMMERCE
		National Bureau of Standards
		National Engineering Laboratory
		Center for Manufacturing Engineering
		Automated Production Technology Division
		Washington D.C. 20234

I beleive that IGES has matured to version 4, and will stay at that
version.  It is supposedly going to be replaced with a standard
called PDES, which I beleive is an acronym for:
Product Definition Exchange Specification.

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