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Use Raster Calculator to Modify DEM Elevations based on a Mask

Question asked by peterverst on Sep 14, 2015
Latest reply on Sep 27, 2015 by curtvprice

Hallo,

 

i know its allmost the same question as "Use Raster Calculator to Modify DEM Elevations based on Vector Layer.but i am trying to build a model but i am stuck.

 

model.png

my first model, and i got that to work has this expression:

Con(IsNull("%Output_raster%"),float(%Double%), "%Output_raster%"). but this sets a value.

 

what I now want is to subtract a value from the DEM using this model.

can sameone help me with the right expressing.

 

Thank you and Greeting Peter

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