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dxfix13.txt
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=============================================================
DXFIX13.TXT - AutoCAD R13 to R12 DXF Translator
=============================================================
March 17, 1995
======================================================================
INTRODUCTION
============
DXFIX is an open, programmable application which generates ASCII or
binary DXF files compatible with any release of AutoCAD.
The information in this file provides the basic instructions for
translating R13 DXF files to R12. This translation is controlled by
translation specification files (DXT files) which can be modified to
suit the user's needs.
For additional information regarding DXF translations and information
on modifying DXT files, see DXFIX.DOC. Also, the DXT file contains
comments regarding the translation of specific objects.
======================================================================
HOW TO TRANSLATE A R13 DXF FILE TO R12
======================================
To translate a Release 13 DXF file to Release 12 format, use the
following syntax at a DOS prompt:
dxfix [-a<digits>] -t<name> <infile> <outfile>
Where <infile> is the input DXF file name (an extension of .dxf is
assumed if no explicit extension is given), and <outfile> is the
output DXF file name (.dxf is also added to this name if no extension
is present). The input DXF file can be either binary or ASCII format;
binary format is faster to process and maintains full accuracy of
drawing objects, but if you supply an ASCII DXF file, DXFIX will
process it without difficulty. DXFIX reads binary DXF files written
in AutoCAD portable format regardless of the system on which it is
running, and ASCII DXF with any of the end of line conventions
recognized by AutoCAD.
The <outfile> is written, by default, in binary DXF format. When
transferring data to AutoCAD Release 12, this format is preferable by
far as it is much faster to write, generally smaller, and preserves
full accuracy. If you want ASCII DXF output instead (for example, if
the DXF is intended for an AutoCAD prior to Release 10 that only
supports ASCII DXF, or is being sent to a non-Autodesk DXF processing
program that requires ASCII), specify the -A<digits> option, where
<digits> is a number giving the precision, in decimal places, to which
numbers should be edited in the ASCII DXF file.
The -T<name> option specifies a translation specification file name.
The translation specification file tells DXFIX how to translate the
DXF file. To translate R13 DXF files to R12 DXF you must specify the
dxfix13.dxt file. If this option is not used it defaults to dxfix.dxt.
The .dxt extension is assumed if not specified.
For example, to convert a binary Release 13 DXF file named "house13.dxf"
to a binary Release 12 DXF file named "house12.dxf", use:
dxfix -Tdxfix13 house13 house12
To perform the same translation, but generating an ASCII output file
with six decimal places of precision, use:
dxfix -A6 -Tdxfix13 house13 house12
The DXFIX.EXE file supplied will run on both DOS and in a DOS window
under NT. This executable can also be used to convert ASCII release 12
files to 10 using the original DXFIX.DXT (not supplied here). However,
due to a change in the size of a code field, it cannot be used to
convert binary Release 12 to 10 files. To do that you must use the
original DXFIX.EXE (also not supplied here).
For a description of the changes to convert an R13 DXF file to R12
format please see the comment at the top of DXFIX13.DXT.