Im fairly new to QGis, but im getting the hang of it. I have two layers - one DEM and one raster made from shape file (Buildings), but need one with higher Elevation where the buildings are for terraflow. But I can't seem to get the raster calculator to work with if Statement. I found a Workaround by assgning a fixed elevation value to the bulding raster, that is higher than any Point on DEM.

But on DEMs with high Elevation difference this means that some Buildings are over 50m tall!!! would like to make an if statment like this:

A B

A = DEM

B = Buildings

if(B>A,A+10,A)

Any help would be appreciated

I'm fairly new to QGIS, but I'm getting the hang of it. I have two layers - one DEM and one raster made from shape file (Buildings), but need one with higher Elevation where the buildings are for terraflow. But I can't seem to get the raster calculator to work with if Statement. I found a Workaround by assigning a fixed elevation value to the building raster, that is higher than any Point on DEM.

But on DEMs with high Elevation difference this means that some Buildings are over 50m tall!!! would like to make an if statement like this:

A B

A = DEM

B = Buildings

if(B>A,A+10,A)