[postgis-users] IDW on vector points instead of raster?

[Edward Mac Gillavry]

Dear list,

Many references to IDW use QGIS, GRASS or GDAL to create raster surfaces. However, what I am looking for is a PL/SQL function to calculate the values at points in a grid from irregularly spaced observation points using IDW: all in vector space.

Has anyone created such a function before? Many thanks in advance.

Kind regards,

Edward
 		 	   		  
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