HEC-RAS 6.x Support
This new release includes the HEC-RAS versions 6.0, 6.1, and 6.2 analysis engines, in addition to all previous HEC-RAS analysis engines back to 3.1. It can perform both steady and unsteady flow computations for both 1D, 2D and hybrid 1D & 2D model domains.
2D Roadway Crossings
The software can now model 2D roadway crossings, including 2D bridge openings and 2D culverts.
Bridge Pier 3D Visualization
The software now allows the user to specify different bridge pier shapes for 3D visualization. In that way, the specified pier matches what is existing or specified for the bridge. Several different pier geometries are available.
The Map Data ribbon menu has been added to make it easier to add data to the Map View.
Classify Land Use Command
The Classify Land Use command can be used to geospatially analyze an orthophoto and then classify land use based upon an automated color segmentation method, creating a thematic land use layer.
The user first trains the software to recognize various land types based upon selected target areas on the orthophoto. The software reviews the colors and patterns of the selected targets and, using AI machine learning, segments the remaining orthophoto into regions to match selected targets using raster recognition. At this point, the software merges adjacent matching land use regions and creates the corresponding thematic land use polygons. The defined land use polygons are then used to assign corresponding Manning’s roughness values.
Draw Land Use Command
The Draw Land Use command can be used to manually define land use regions on the Map View by interactively painting in the areas of land use. The painted areas are automatically converted into polygons with attribute data linked to the assigned land use. The defined land use polygons are then used to assign corresponding Manning’s roughness values.
Merge Land Use Command
The Merge Land Use command can be used to merge two or more land use layers into a single land use layer. The user can define the merge order of the various land use layers, assigning precedence to those layers that have more accuracy and detail.
Online Land Cover Data
The software provides online land cover data for the USA, Canada, and many other parts of the world. This data is already mapped to corresponding Manning’s roughness values and can be assigned to a 2D mesh or 1D cross section overbank roughness.
EPA and USGS Stream Gages
The software can now display both EPA and USGS stream gage locations on the Map View. Clicking on a specific stream gage location will display detail about the gage in the Data Explorer.
Land Use, Impervious, and Soil Map Data on Mirrored Azure Webservices
The land use data, impervious data, soil map data and other web map services for the US and other parts of the world are now mirrored on Azure webservices. The software will automatically recognize when the main webservice (e.g., USGS, USDA, NOAA, etc.) server is not available, at which point the software instantly reverts to a mirrored webservice server on Microsoft Azure managed by CivilGEO.
Additional commands have been added to the Results ribbon menu and are designed to capture all or part of the Map View (in either 2D or 3D) and publish the images to a graphic file (i.e., PNG, JPG, TIFF, etc.), to a PDF, or create a flyby 2D/3D video movie.
The Grid Calculator command can perform mathematical computations and logical operations to raster grids (i.e., elevation, water surface, velocity grids, etc.). For example, the user may want to see the difference in water surface elevations as an elevation difference grid by subtracting two elevation grids from each other. Or the user may want to create a “custom” flood hazard map by multiplying the flood depth grid by the velocity grid.
The command provides a very easy to use interface to walk the user through the process of computing raster grids without the need for any programming skill or knowledge. And, for power users, the software provides an expression editor where simple and complex expressions can be entered, validated, and computed on the selected raster grids.
Clip Raster Command
The Clip Raster command allows users to clip an elevation DEM or image raster by either HEC-RAS model extents, rectangular envelope, or selected polygon(s).
The Photo Catalog allows the user to add geotagged photographs to a hydraulic project. The catalog does not store the photos but stores references to existing saved photos. It connects to the photographs using reference links to the file path. Photos can be referenced from the following sources:
- Computer local hard drive
- Network drive
The Photo Catalog will then reference the file path or URL for displaying the photograph. This will allow the user to convey better design intent and provide additional detail to existing conditions.
The geotagged photographs will contain the following information:
- Geographic location (Lat, Long)
- Elevation (optional)
- Date and time
- Photo direction (i.e., rotation angle)
- Title and description
Many users find that using an external keyboard with keyboard shortcuts helps them work more efficiently. Press Ctrl+Period (.) to display a dialog box listing the currently assigned keyboard shortcuts. The user can add, remove, and edit keyboard shortcuts, as well as export and import the keyboard shortcut file to allow access to other users.
Intelligent Ordering of Entries
When working with different storms and scenarios, the user will commonly refer to an entry as a “10yr Storm”, “25yr Storm”, “50yr Storm”, or “100yr Storm”. Previously, when these names were shown in a listing, they were presented in alphabetical order. Now they are listed in chronological order.
Track 2D Manning’s Roughness on Map View
The software now tracks the 2D Manning’s roughness as the user moves the mouse cursor around on the Map View. The roughness value is shown on the status line when the Manning’s roughness grid is active and is also listed above any elevation grids in the Map Data Layers panel.
Licensing Troubleshooting Wizard
Most common software licensing issues can be quickly resolved using the built-in trouble shooting wizard.
2DM File Format Support
The software can import the Aquaveo SMS application’s .2dm mesh geometry files. To convert the .2dm mesh to an elevation grid see the Generate Terrain Command knowledge base article.
Built-in Online Help
Many commands now contain a direct lookup for online help. Click on the Help button in the lower left corner and your Internet browser will display details about the current command.