Hi all, I am trying to reclassify a slope surface with a reverse normalisation (lower the slope value, the closer to 1 it becomes).
It can be done in ArcGIS in the Raster Calculator using: (0.404234915971756 - "slope") / 0.404234915971756 where 0.404234915971756 is the maximum value (minimum value of the data is zero so I don't need to include this in the calculation). Wanting to recreate this process in PostGIS so can anyone advise on how I could do the calculation for: (max. value - cell value)/ max. value for each cell in the raster? Cannot get my head around it. Much Appreciated James ----- GIS Undergraduate -- View this message in context: http://postgis.17.n6.nabble.com/Reclassify-a-Slope-Surface-tp4763035p4763035.html Sent from the PostGIS - User mailing list archive at Nabble.com. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
