Introduction
Q-RAS Plugin is a preprocessing for geometry preparation in HEC-RAS.
The steps to using Q-RAS Plugin are fairly simple:
- Load in QGIS a Digital Elevation Model in grid format in a projected crs
- Digitize a stream network vector line from upstream do downstream
- Digitize a Cross sections vector line from left overbank to righ toverbank (it’s not necessary to follow a particular order in XS digitizing as the plugin order the XS basing on the river feature)
- Designate where to store your new geometry file
- press OK
- Open HEC-RAS and enjoy