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Questions tagged [raster]

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PostGIS Issue with not displaying out of DB rasters correctly in QGIS

I am trying to create an out of DB raster from a VRT in postGIS and displaying it in QGIS using DB manager. I am creating the VRT using absolute paths and have checked using PGAdmin that the DB is ...
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ST_MapAlgebra count if full extent

I want to count MAX value from two rasters with different extent. I use this code: DELETE FROM vitr.pove; INSERT INTO vitr.pove (rast) SELECT ST_Tile(ST_MapALgebra(a_c1d1.rast, 1, b_c2d2.rast, 1, '...
4
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4answers
728 views

Best way to model a database structure to store multidimensional variables?

I am working with some NetCDF data which has multidimensional variables. As far as I'm aware, the fields are not mandatory. Each variable will have the same fields/attributes. Each variable ...
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1answer
837 views

rt_raster_to_gdal: Could not load the output GDAL driver

I have already set the environment in windows SET postgis.gdal_enabled_drivers = 'ENABLE_ALL'; Even I tried by adding following in environment path- POSTGIS_GDAL_ENABLED_DRIVERS=ENABLE_ALL But ...
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2answers
953 views

Creating a unique constraint on a PostGIS 'raster' type column

I am using the following command to add constraints to one of the raster image in PostGIS-2.1.3 (PostgreSQL-9.1.14). ALTER TABLE schema1.table1 ADD CONSTRAINT enforce_scalex_rast unique (rast); But ...