It is quite easy to export a project to Google Earth. The Export HEC-RAS to Google Earth and Export HECH-HMS to Google Earth commands allow the user to export a current project and analysis results to Google Earth. This allows the project data to be viewed in Google Earth.
To export a project to Google Earth, select the Export HEC‑RAS to Google Earth or Export HECH-HMS to Google Earth command from the Export Data dropdown menu of the Input ribbon menu. This will display the following dialog boxes:
The Export HEC‑RAS to Google Earth dialog box will be displayed.
The Export HEC‑HMS to Google Earth dialog box will be displayed.
The following sections describe how to interact with the above dialog boxes.
Google Earth File
This section is used to identify where the exported results are to be saved.
Click the […] button at the File name entry to specify the directory location and Google Earth file name to save the exported results.
HEC‑RAS Input Data
This section allows the user to select the HEC‑RAS input data to export. The checkbox option at the HEC-RAS Input Data section header allows the user to enable or disable the section and its underlying elements to be exported. Each HEC‑RAS element type is placed in its own layer. For example, cross sections are placed in a cross-section layer, whereas river reaches are placed in a river reach layer. Also, 3D polyline elements, such as cross sections, are written out as 3D polylines.
HEC‑RAS Output Data
This section allows the user to select the HEC‑RAS output results to export. The checkbox option at the HEC-RAS Output Data section header allows the user to enable or disable the section and its underlying output options to be exported. In addition, the user can select which flood map profiles to export, export BFE contours, as well as 2D flow velocity arrows for the selected profile into Google Earth format. Note that the software does not permit the export of contours with time series flood maps.
Animated flood results are exported as animated results to Google Earth.
HEC‑HMS Input Data
This section allows the user to select what HEC‑HMS element data should be exported. Each HEC‑HMS element type is placed in its own layer. For example, subbasins are placed in the subbasin layer, whereas storage areas are placed in the storage area layer.
The Overwriting existing Google Earth file checkbox option allows the software to overwrite an existing Google Earth file with the same file name. Also, the View in Google Earth checkbox option causes the software to launch Google Earth from the user’s computer, load the exported Google Earth file, and then zoom into the project area in Google Earth.
Exporting the Project
After the options have been defined, click the [Export] button and the software will export the project to Google Earth.
Only the current scenario (or plan) will be written out to a Google Earth file. Separate Google Earth files will need to be created if multiple scenarios are to be viewed in Google Earth.