Hey, The dataset of points is already sorted and processed, the points are in regular grid and they are not overlapping. The relation 1 point = 1 pixel can be used, where value of pixel should be Z value. The result should look like heat map. However, ST_AsRaster function cannot be used for that. The function only create the raster with "footprint of geometry" where all pixels have same value. Any other suggestions?
Regards Radan > Hi all, > > I want to create raster from multipoints geometry where value of pixels is > Z value of points. I want to do everything in the database. Is there any > simple query for that? > So far, I have found the quite complicated way: First create a empty > raster with ST_MakeEmptyRaster, secondly ST_AddBand and at the end > ST_SetValues which is new functions release recently (PostGIS version 2.1). > I am wondering how have these conversion been done until now? > > Thank for any answer > Radan
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