With VO 6.0, we are introducing TatukGIS that will be built into the program. No additional GIS license is required to use Tatuk Map. Users can now choose an ArcGIS or TatukGIS map. Note that an ArcGIS license is required to use the ArcGIS map. Map is another way to create, parameterize and present a VO model. It adds geospatial location information to each hydrological object and shows the model drainage network on the map. This section helps you work with the map in VO (ArcGIS map is used as default in this section). Several benefits from using the map are:
- Easier model creation with existing GIS data. For watershed and sub-watershed studies, various GIS data are usually available, which may include catchment, stream and out-put layers. With Map View, the model drainage network can be created directly from these layers without the need to create hydrologic objects one by one from scratch.
- Reduced time for model parametrization. The geometry-based parameters (e.g. Area, Length, etc.) are usually obtained from a third-party software and then entered in the model. With geo-spatial location information, these parameters can be automatically calculated. Tools are provided to calculate area weighted CN and Imperviousness.
- Easier to understand. The model schematic may be difficult to understand without knowing the study area. This is improved with map by providing viewers the spatial context.
In VO, a scenario can be viewed in both the Schematic View (Canvas) and the Map View.
By default, only one view is visible. To have them side-by-side (split view), drag Map or Schematic tab to the desired location. Note that the Map View and GIS tab will not be available if an ArcGIS license is not found.