[postgis-users] MapAlgebra on three Rasters

[JamesH]

Sorry, I should have explained what I'm trying to do with the query.

I'm taking the two rasters density and euclidean, normalising them both 
before multiplying normalised density by 0.5, multiplying normalised
euclidean by 0.3 and then adding these together.

Then I am producing a slope surface, normalising that
and then multiplying the normalised slope by 0.2
before using it along with the result of the first calculation to add
effectively all three rasters together.

Hope this explains better.

Kind Regards,
James

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GIS Undergraduate
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