Dave, you might want to try with the latest GDAL 2.3.2 There has been a bug fixed in that one that could potentially fix the issue you have: https://github.com/OSGeo/gdal/issues/638
Even > I am hoping that someone receiving this email might be able to help me or > direct me to someone else who can. Please excuse me if this is an > inappropriate use of your mailing list or attachment format. > > I am attempting to use GDAL_GRID with linear interpolation to generate a > TIF-file and polygonized SHP-file, from a TXT-file of 3D point data > generated by a single-beam echo-sounder which collects detailed river > cross-sections typically at every 50 - 100 m intervals down a river. > > We currently have a database of over 2100 bathymetric (underwater) surveys > and have been successfully using an ArcGIS macro, but for a number of > reasons I was hoping to migrate away from ArcGIS and use GDAL_GRID instead > for batch input. The point data files work fine in both QGIS and ArcGIS, > but not in GDAL_GRID. I am continuously getting 'blocks' of random 'No > Data'-areas in my output (refer to attachment). I am wondering if this is a > flaw in the GDAL_GRID program or if I am not using it correctly, and > whether there is an alternative program that might be more stable. > > I have prepared a PDF file which documents and summarizes the problem if > anyone is interested. > > Any advise you might be able to give me would be MUCH appreciated! > > Thank you in advance. > > Regards, David Burkholder -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ gdal-dev mailing list gdal-dev@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/gdal-dev
