Colin,
You might want to try reading the dxf file the the Teigha File
Convertor. This is a Windows utility that converts between dwg abd dxf
and the various versions of both. Its a free download and I just used it
to convert about 60K dwg files to dxf and it works great. You can
specify what version of dxf you are reading or writing. Oh and there is
also a companion viewer application so you can view the files. I just
found it a useful too because it was very flexible and supported
multiple versions.
-Steve
On 6/4/2012 12:42 PM, Colin Wright wrote:
With gdal 1.8 and 1.9 I am unable to convert any polygon datasets to
DXF in a format where they can be read by AutoCad. Every time I try
to open a DXF created with these versions I get the error:
The following error was encountered while reading in HATCH starting
at line 1546: Error: expected group code 10 Invalid or incomplete DXF
input -- drawing discarded.
I've found a couple of mentions of this issue on the mailing list in
the past but haven't seen any real solutions. Details are below:
I am currently using 1.9.0, and have tried converting
programmatically from postgis 1.5.3 -> DXF and have also tried
using ogr2ogr from Shapefile -> DXF with the same result. The
OGR2OGR command lines I've tried are:
ogr2ogr -f "DXF" polytest2.dxf polytest.shp or ogr2ogr -f "DXF" -nlt
POLYGON polytest2.dxf polytest.shp
The test shapefile contains only 3 simple polygon shapes with no
holes or multi-part geometries, and as far as I can tell I'm using
the standard DXF header and footer files that come with GDAL. The
DXFs work fine when created with the older 1.7 version of GDAL which
just translates the polygons as lines.
Does anyone know of another approach I can try, or is this a known
bug? I can send anyone a sample dxf file if they would like to take
a look at it.
Regards
Colin Wright
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