Adding a Base Map Layer A base map layer provides high-quality background aerial and other imagery from different online map providers to add context to...
Adjust Elevations command The Adjust Elevations command is used to set or adjust elevations for a portion of an existing elevation grid. The user...
Assign River Reaches command The Assign River Reaches command enables the user to quickly assign a polyline as a river reach. Follow these steps...
Compass Rose and 3D Navigator The Compass Rose shows the orientation of the Map View relative to North. Placing the cursor over the Compass Rose...
Construct 3D Buildings from OSM Data Our software uses OpenStreetMap (OSM) data to create realistic looking 3D buildings on the Map View. The user can view...
Copying and Pasting Model Elements The software allows you to copy and paste model elements within a project and even between projects when two or...
Copying HEC‑RAS Entities from one Project to Another The software allows you to copy and paste model elements between projects. For example, select a cross section from one...
Crop Base Map command The Crop Base Map command crops the base map (i.e., Google Map, Bing Map, etc.) to the elevation terrain data...
Digitizing Elements Digitizing (or drawing) elements on the Map View can be performed using the various HEC‑RAS specific commands (e.g., Draw River...
Draw River Reaches command The Draw River Reaches command enables the user to draw a river reach on the Map View. From the Input...
Editing of River and Reach Names GeoHECRAS allows the user to rename a river and/or reach by double clicking on the reach name on the Map...
FEMA Flood Data command The software can display the FEMA digital Flood Insurance Rate Map (FIRM) directly on the Map View. It is required...
FEMA NFHL Download command GeoHECRAS allows the user to download FEMA National Flood Hazard Layer (NFHL) as shapefile data by using the FEMA Flood...
Georeferencing a HEC‑RAS Model to a Map Location When importing a HEC‑RAS model, the imported model will be assigned to a local coordinate reference system. If the project...
Georeferencing a HEC‑RAS Model to a River Alignment This video tutorial shows you how to georeference a non-georeferenced HEC‑RAS model to a river alignment in real-world coordinates using...
Georeferencing Aerial Imagery Georeferencing orthomosaic and other aerial imagery can have issues if no projection information is associated with the image file. When...
HEC‑RAS Element Display Properties You can change the display properties of the following HEC-RAS elements shown on the Map View: River Reaches Cross Sections...
Import River Reach Geometry command The Import River Reach Geometry command allows the software to import surveyed river reach geometry from a wide variety of...
Layer Display Order The order of layers listed in the Map Data Layers panel determines how layers are drawn on a map. The...
Map View Scale Bar While in 2D view mode, the Scale Bar provides a reference for estimating distances on the Map View.
Printing the Map View It is easy to create professional print outs of project models from our engineering software, as well as export the...
Restoring a Map View Coordinate Reference System After importing data that does not have an assigned coordinate reference system (CRS), the data will be displayed in its...
Reverse River Reach command The river flow direction is defined by digitizing the river reach in a downstream direction. The software will display a...
Rivers and Streams command The Rivers & Streams command displays the National Hydrograph Dataset (NHD) from the USGS web map service, showing river and...
Stamp Geometry command The Stamp Geometry command is used to draw a polyline and have the software automatically sample the cross sectional geometry at...
Surface Terrain 3D Vertical Exaggeration While in 3D view mode, the Vertical Exaggeration Scale allows the user to adjust the amount of vertical exaggeration of the...
Toolbar Commands The toolbar provides Map View commands, including: 2D/3D – Switches the Map View from 2D to 3D view mode. Select...
Understanding the User Interface Our civil engineering software’s user interface has several features that will be examined in detail in the following sections. The...
USGS StreamStats command The USGS StreamStats command allows the user to click on a stream location in the Map View, prompting the software...
Watershed Boundaries command The Watershed Boundaries command displays the Watershed Boundary Dataset (WBD) from the USGS web map service, which shows the watershed...
Working with Multiple Project Windows The software allows you to work with multiple projects at the same time. The tabbed window interface allows you to...
Zoom To command The Zoom To command enables the user to search and zoom to a specific location or address on the Map...
Zooming, Panning, and Rotating the Map View While working on an engineering project, you frequently zoom, pan, and rotate the Map View. Therefore, it is important to...