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Retrieving
#multi_band#raster from the DB for the#spatial_modelling is not easy. One of the ways to accelerate the process is converting#Raster_To_Polygon and limit into the area of interest.#PostGIS has functions such as#ST_PixelsAsPolygon,#ST_intersects to do it.#GISpic.twitter.com/qu5hxP8Mu5
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Comme je ne suis pas sûr que le Z soit suffisamment précis, j’utilise
#ST_Intersects plutôt que#ST_3DIntersects mais je prends soin de vérifier que les “troncon_de_route” et “troncon_de_voie_ferree” aient la même position par rapport au sol.Prikaži ovu nit -
@nygeog I'm curious to know as well! I always use PostGIS to filter my data and use#ogr2ogr to convert the data formats.#ST_Intersects -
To all
#PostGIS users out there. What do u think ist faster?#ST_dwithin or#ST_intersects
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