On lundi 8 avril 2019 08:55:49 CEST Bryant wrote: > Hello! > > I've been trying to use /gdalbuildvrt/ and /gdalwarp/ to merge, project, and > crop a set of overlapping images with a new resolution. > > However, I've been running into an issue where the edges of the resulting > image have nondeterministic, erroneous values (ie. very large and small > values) and values in regions that I would expect only NoDataValues. The > images are Float32, 1 banded, and have nodata = > -340282346638528859811704183484516925440.
That's likely a precision issue in how you specify the nodata value or how it is serialized in the VRT. There have been fixes in that area (thinking to https://github.com/OSGeo/gdal/issues/1071 ), but this is always fragile. Even -- Spatialys - Geospatial professional services http://www.spatialys.com _______________________________________________ gdal-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/gdal-dev
