![]() WMS reads and writes the HEC-GeoRAS GIS import format. The HEC-RAS model is included with all paid editions of WMS (10.1 comes with HEC-RAS 5.0.1). The first step to using HEC-RAS with WMS is to set up the river schematic. Specific attributes for an HEC-RAS simulation include: For information on the tools and processes to set up a river schematic, see the 1D River Hydraulic Module. Roughness values for HEC-RAS are tied to materials in WMS which must be assigned as line properties inside the cross-section database. ![]() ![]() To assign roughness values to the materials, choose HEC-RAS | Material Properties. Also, the property type that is being used for the material values must be specified in the model control dialog. This dialog is accessed by selecting HEC-RAS | Model Control from the menu.īefore loading the data into HEC-RAS, the simulation needs to be saved in HEC-RAS GIS export format. This is done by using File | Save As and changing the type to HEC-RAS GIS export format. The file can then be loaded into HEC-RAS by choosing HEC-RAS | Import GIS File inside the geometry editor. See HEC-RAS documentation for information about setting up boundary conditions and running the model.
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