[postgis-users] NDVI Calculation from two bands within one Raster
james.holmes at newcastle.ac.uk
Mon Apr 2 06:03:54 PDT 2012
Have upgraded to Beta4,
new error message returning for
'SELECT ST_MapAlgebraExpr(a.rast, 4, b.rast, 3, '(rast1 - rast2) /(rast1 +
rast2)::float') FROM nclraster1 a, nclraster1 b;'
As column "rast1" does not exist.
With the previous PostGIS raster version, this has not returned before.
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