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/*
* (C) COPYRIGHT International Business Machines Corp. 1995
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of IBM not be
* used in advertising or publicity pertaining to distribution of the
* software without specific prior written permission.
*
* THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
* EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
* WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
*
* IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL, INDIRECT
* OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE
* OR PERFORMANCE OF THIS SOFTWARE.
*/
README
==============
The DXF-DX format converter supports many of the entity types
defined in the DXF file format. It provides simple command
line options to specify input and output file names, resolution
of certain primitives and a verbose operation flag.
Command Line Options:
=====================
dxf2dx [-h] [-v] [-r'n'] [filein [fileout]]
with:
-h: this help message.
-v: verbose operation.
-r'n': resolution of circle and arc primitves (default 40).
and:
filein: input file name (default stdin).
fileout: output file name (default dxf.dx).
Known Limitations:
==================
-- The Entity Coordinate System (ECS) for 2-D primitives is not resolved
correctly. This means that some 2-D primitives will appear in
the wrong location in space.
-- The entire DXF file is read into memory before any DX geometry is created.
Then the entire DX object is created. Then the DX Object is written out
to disc. This is kind of wasteful in memory. A better implementation
would convert items as they are encountered in the DXF file.
Supported Entities:
===================
2-D Primitives:
CIRCLE (including cylinders)
ARC (including partial cylinders)
LINE
3-D Primitives:
3DLINE
3DFACE
POLYLINE (inluding poly face meshes, 3-d meshes and polylines)
VERTEX
Block Inserts:
INSERT
BLOCK
Unsupported Entities:
======================
ATTDEF
ATTRIB
DIMENSION
POINT
SHAPE
SOLID
TEXT
TRACE
VIEWPORT
Location of sample DXF files
=============================
In this directory are two sample dxf files: x29.dxf and
balloon.dxf. You will also find a makefile to make
dxf2dx. See MANIFEST for a brief description of the files
in this directory.
anonymous ftp to avalon.chinalake.nav.mil://pub
to find hundreds of sample DXF files, format
specifications, 20-30 other file format specs
as well as samples of these other formats.
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