[gdal-dev] SQL query to set column to GPKG raster pixel value of point intersection result

[Rahkonen Jukka]

Hi,

It feels like quite special tool. Have you considered to use the Sample Raster Values tool in QGIS? The description of the tool is:

Sample raster values
This algorithm creates a new vector layer with the same attributes of the input layer and the raster values corresponding on the point location.
If the raster layer has more than one band, all the band values are sampled.

-Jukka Rahkonen-

Lähettäjä: gdal-dev <gdal-dev-bounces at lists.osgeo.org> Puolesta Meyer, Jesse R. (GSFC-618.0)[SCIENCE SYSTEMS AND APPLICATIONS INC] via gdal-dev
Lähetetty: torstai 8. joulukuuta 2022 20.07
Vastaanottaja: gdal-dev at lists.osgeo.org
Aihe: [gdal-dev] SQL query to set column to GPKG raster pixel value of point intersection result

Hi,

I have GPKG database with features represented by point geometries.  I’d like to update these features, in a single SQL statement, to add a new column whose value is the pixel value of an external GPKG raster for which the point geometry intersects with.  I was hoping to find an OGR SQL function similar to burn for this, but I’ve come up empty handed.

Is this functionality available? Ideally, without resorting to manually updating each feature individually in a user application.  Otherwise, perhaps a feature request is in order.

Thanks,
Jesse
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