The second model uses tools solely from the Basic ArcGIS license, but you must have the 3D Analyst and Spatial Analyst extensions activated as described in this ESRI post. Breaklines are helpful for modelling levees, elevated roads, and dams. The advanced model is slightly faster and provides the functionality of adding breaklines to your resulting mesh. The first uses tools from the Advanced ArcGIS License. Additionally, there are two model types within the 3DV-toolbox. Compatibility of this toolbox cannot be guaranteed with ArcGIS Pro or other Desktop versions. The 3DV-Flo toolbox has been tested on ArcMap for Desktop versions 10.3.1 and 10.6.1. The 3DV-Flo method relies on three inputs (an inundation boundary, depth raster, WSEL raster), two free software (HEC-RAS, Google Earth), and one proprietary software (ESRI ArcGIS*). This output is an improvement upon RAS Mapper generated KML’s in that the results are no longer clamped to the ground. 3DV-Flo allows the information stored in WSEL and depth rasters to be viewed three-dimensionally in Google Earth.
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