hello to everyone ,I am a relatively new user of HEC-RAS 5.0.0 and I hope you can help me with the following problem.
I want to create a new terrain importing a tif file in RAS Mapper.
During step 2 of 4: Rounding and/or Generating Statistics…, the following error message occurs:
„Error creating Terrain: file does not contain a specified no data value tag.
It's worth noting this 'filled file' likely contains a terrain model that was filled in order to remove sinks. If so, this is a rough hydro-correction to generate a terrain model that allows water to flow downhill to an outlet. And the terrain raster at structure crossings ought to be scrutinized, particularly at culvert crossings.
Sir,i think this link are blocked from our country.sir can you help me any other way how can i solve these problem manually. Actually sir,i will go for flood modeling by using HECRAS and this is my final year project.so please sir help me.
Hello, Im using Qgis to generate de raster (geotiff). But I get the same error message (Error creating Terrain: File does not contain a specified no data value tag), when I try to create the terrain. Any ideas?? thanks!
When I tried importing my buildings raster (polygons raised by 0.1m than my average DTM elevations) in HECRAS giving it as a top priority and my DTM as second; though the error has vanished and even I'm able to import it, I still have those 0 (zero) values everywhere other than the buildings which I had expected.
So my question is, is it good to stamp my buildings raster on DTM to generate a new DTM in any GIS tool and then importing it back to HECRAS, or am I missing some process while generating terrain?