Qgis2Ras documentation

The first plugin to connect QGIS to HEC-RAS software

Introduction

Q-RAS Plugin is a preprocessing for geometry preparation in HEC-RAS.

The steps to using Q-RAS Plugin are fairly simple:

  1. Load in QGIS a Digital Elevation Model in grid format in a projected crs
  2. Digitize a stream network vector line from upstream do downstream
  3. Digitize a Cross sections vector line from downstream do upstream from left overbank to righ toverbank
  4. Designate where to store your new geometry file
  5. press OK
  6. Open HEC-RAS and enjoy

Limititation of current version

This version of Plugin Q-RAS is an experimental version. It’s need more tests anb presents some limitation: - only one river can be processed - only one reach can be processed - the plugin does not repoject your data so user have to use a consistent crs - the plugin is not able (for now) to integrate in geometry any structure, bridge, banks, obstructions

images/QRAS_screen.png

About

The Plugin have been developed by Pierluigi De Rosa and Studio Gfosservices. see http://www.gfosservices.it

Download

The plugin code is hosted here https://github.com/pierluigiderosa/Qgis2Ras


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