12d Model

Thats worked perfectly, thanks for clearing that up for me. Ive now got flood depth grids without negative values. However, there is some errors creeping in. Ive worked out, that sometimes the water level extent extends further than the terrain coverage that I have. In these instances, after I do th...

Dont have the conformance Module license, but sounds interesting. Ok. Bit confused. I have gone to Tins---Util----GRID DTM This has created a points file of my Topography layer. I then select Z Diff from Tins. Model of Strings (bit confused about this layer - is this what is puts resulting differenc...

I am using 12D to get flood depth grids. I have a DTM tin and a Water level Tin. If I use the Tin Analysis---Intersect, it gives me a flood extent ( i.e. flat polygons) but not a flood DEPTH grid. How can I minus one grid from another (and remove negative values) - Which command would I choose to do...