Thank you, Jukka. I saw this post. The main question is why the DXF driver implementation can explode MultiPolylines and MultiPolygons (which is more complex) and MultiPoint *not*?
Michał Kowalczuk czw., 16 sty 2025 o 08:24 Rahkonen Jukka < jukka.rahko...@maanmittauslaitos.fi> napisał(a): > Hi, > > > > By this gis.stackexchange answer > https://gis.stackexchange.com/questions/336804/export-to-dxf-from-multipoint-z-geometry-in-postgresql-using-ogr2ogr > the main issue is in the DXF format that does not support MultiPoints. Try > the workaround and explode your multipoints. > About why it is allowed to create a geometry type that is not supported by > the driver, I do not know if the validity of the geometry type is checked > https://gdal.org/en/stable/api/python/raster_api.html#osgeo.gdal.Dataset.CreateLayer > of if it up to user to know that, or if DXF is a special case. > > > > -Jukka Rahkonen- > > > > *Lähettäjä:* gdal-dev <gdal-dev-boun...@lists.osgeo.org> *Puolesta *Michal > Kowalczuk via gdal-dev > *Lähetetty:* torstai 16. tammikuuta 2025 8.56 > *Vastaanottaja:* gdal-dev@lists.osgeo.org > *Aihe:* [gdal-dev] DXF MLTIPOINT > > > > *HUOM!* Viesti on saapunut ulkopuolisesta osoitteesta. Älä avaa viestin > linkkejä tai liitteitä, jos et tunnista lähettäjää. > > > > Hi, > > Does anyone know why DXF driver supports writing MutiLine and Multipolygon > (make automatic conversion) but MultiPoint is not...? > If so, why layer creation (*GDALDatasetCreateLayer*) with this geometry > type (*wkbMultiPoint... *family) is allowed and the error occurs only > when creating a feature on a layer (*OGR_L_CreateFeature*)? > > > > *CPLError: No known way to write feature with geometry 'Multi Point'.* > > > > The DXF driver documentation is silent about this type of geometry... > > > > Regards, > > Michał Kowalczuk >
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