Hi,
By reading the documentation
https://gdal.org/drivers/vector/dxf.html#dxf-writer what you see is expected.
--config DXF_WRITE_HATCH FALSE is writing polylines and polylines have vertices
with different Z coordinates. --config DXF_WRITE_HATCH TRUE writes polygons.
The polygons have same elevation value at each vertex, and that is also
documented:
“You may need to do this [to use DXF_WRITE_HATCH FALSE] if your geometries do
not have a constant elevation, as the DXF HATCH entity cannot represent such
geometries.”
-Jukka Rahkonen-
Lähettäjä: gdal-dev Puolesta Shahrukh Mirza
Nawandish via gdal-dev
Lähetetty: maanantai 22. huhtikuuta 2024 13.26
Vastaanottaja: gdal-dev@lists.osgeo.org
Aihe: [gdal-dev] Issue with 3D GeoJSON to 3D DXF Conversion
Dear GDAL Team,
I hope this email finds you well. I'm encountering an issue converting 3D
GeoJSON polygons to DXF format using ogr2ogr. During conversion, the elevation
data becomes uniform for all points within the polygon. Additionally, when
using "DXF_WRITE_HATCH," the geometry becomes a polyline instead of a polygon.
Attached are the GeoJSON data and conversion code for your reference. Could you
please assist in resolving this discrepancy?
ogr2ogr -f "DXF" output.dxf input.geojson -t_srs EPSG:32737 --config
DXF_WRITE_HATCH FALSE
Thank you for your attention to this matter.
--
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