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Applied-GeoSolutions / gips

Geospatial Image Processing System
GNU General Public License v3.0
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Problem specifying tile for download without site shapefile or raster mask #497

Closed sullamenashe closed 5 years ago

sullamenashe commented 5 years ago

This command doesnt work: gips_export sentinel2 --fetch -p ref-toa -d 2018-08-01 --outdir /mnt/storage --notld -t 15TUH

It gives the error: error: one of the arguments -s/--site -r/--rastermask is required

When adding the -s flag like below, the command does work: gips_export sentinel2 --fetch -p ref-toa -d 2018-08-01 --outdir /mnt/storage --notld -t 15TUH -s conf-gips/vector/test_tile.shp

Is this a known issue or a bug?

ircwaves commented 5 years ago

I think this goes under known issue. Export is for mosaicking and clipping imagery to a supplied geometry's extent (-s or -r). There is an unmaintained script (gips_tiles) which was intended to copy tiles out of the archive. It's been years since I touched it.

Without --res supplied, GIPS attempts to gdal_merge the source imagery, and can blow up if the source imagery have different projections. I think this highlights that we might want to make --res also a required argument for export. Though there may be some edge case where one does want the sensitive behaviour of a non---res export.

Specification of --res in implicit-units that don't match the units of the vector is problematic. For example, -s my_geographic_projection_geom.shp --res 500 500 (user likely assumes meters) will attempt to generate output that has 500 degree by 500 degree pixels.