Map View

31 Articles

Detailed description of available commands for editing and manipulating HEC-RAS engineering data on the Map View. In addition, commands for viewing, printing, importing and exporting are described.

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...

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...

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....

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...

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...

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...

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...

Zoom To command

The Zoom To command enables the user to search and zoom to a specific location or address on the Map...