Joaquim,
yes, you should be able to use a /vsimem/ file as a cutline dataset.
Here's an example in Python with a shapefile in /vsimem/:
https://github.com/OSGeo/gdal/blob/fec15b146f8a750c23c5e765cac12ed5fc9c2b85/autotest/utilities/test_gdalwarp_lib.py#L1103
The cutlineDSName=is just python syntaxic sugar to format the arguments.
There's no reason it shouldn't work in Julia too
Make sure that the cutline dataset is properly closed, before using it
with gdalwarp
Even
Le 31/03/2021 à 15:34, Joaquim Manuel Freire Luís a écrit :
I have low hopes on this one but have to confirm.
I have this “ds” dataset with one polygon geometry, which is correctly
saved on disk with
ogr2ogr(ds, save="lixo.gmt")
and later correctly “cutlines” with
gdalwarp("IMG_9106.jpg", ["-cutline", "lixo.gmt", "-to",
"SRC_METHOD=NO_GEOTRANSFORM"]);
but I wanted to avoid the step of saving to disk and instead using the
inMemory file. If I ask its name, I see
GDALGetDescription(ds.ptr)
"/vsimem/##258"
But this fails
gdalwarp("IMG_9106.jpg", ["-cutline", GDALGetDescription(ds.ptr),
"-to", "SRC_METHOD=NO_GEOTRANSFORM"])
NULL Dataset
Can this be made to work (would it work with the python bindings?) and
I’m just doing it wrong or it just can’t?
Thanks
Joaquim
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
--
http://www.spatialys.com
My software is free, but my time generally not.
_______________________________________________
gdal-dev mailing list
gdal-dev@lists.osgeo.org
https://lists.osgeo.org/mailman/listinfo/gdal-dev
