XPSWMM Conversion Export SWMM INP
Export INP Files
SWMM cannot directly read GeoPackage databases. Therefore, we need to convert all three GeoPackage files (HDR, RNF and inlet curves) into the SWMM INP file format. Both the HDR and RNF GeoPackages contain a Project--Options section, which are identical as they were extracted from the same XPSWMM model. These options are necessary for executing the SWMM simulation. Since Project--Options is already included in the HDR and RNF, it is not needed in the inlet curves INP file.
Note: The inlet usage GeoPackage does not need to be converted to a SWMM inp file. Since it contains only one layer, it can be directly read into TUFLOW SWMM.
- In QGIS, go to TUFLOW >> SWMM in the processing tool list and select 'GeoPackage - Write to SWMM inp'.
- In the tool window, select 'Run as Batch Process...' (located at the bottom left). This feature allows us to convert multiple GeoPackages to SWMM inp files in one go.
- Under 'GeoPackage Input File', click '...' and navigate to the TUFLOW\model\swmm folder. Select the HDR GeoPackage file.
- Click the plus icon
- Click 'Run'.
- Once the tool has finished, click the 'Parameters' tab.
- Repeat steps 2 and 3 for the RNF and inlet curves GeoPackages.
- Once the tool has finished, click 'Close'.
- The three SWMM INP files will be located in the TUFLOW\model\swmm folder, with each file sharing the same filename as their respective GeoPackages. For example, 1D2D_Urban_HDR_001.gpkg > 1D2D_Urban_HDR_001.inp.
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