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PT / PortuguêsAdding 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...
Map View
33 ArticlesAdjust 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
GeoHECRAS software uses OpenStreetMap (OSM) data to construct 3D buildings on the Map View. The Show 3D Buildings command will...
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 Input | River Reaches | Draw River Reaches command enables the user to quickly draw a river reach on the Map View....
Editing of River Names and Reach Names
The user can rename a river and/or reach by double clicking on the reach name on the Map View. There...
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 that is Not Georeferenced
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
The software allows the user to change the display properties of the following HEC‑RAS elements shown on the Map View: River...
Import River Reach Alignment command
The Input | Cross Sections | Import River Reach Alignment command allows the software to import surveyed river reach alignment from a wide...
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’s easy to create professional print outs of HEC‑RAS models in GeoHECRAS, as well as export the HEC‑RAS project to...
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
The GeoHECRAS user interface has several features that will be examined in detail in the following sections. The user interface...
USGS StreamStats command
The USGS StreamStats command allows the user to click on a stream location in the Map View, and 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 View
There are a variety of ways to zoom, pan, and rotate the view within the Map View. Dynamic Zoom Tool...
