Mike Import

MIKE+ Import

Creates a new .sqlite from an .inp. SWMM data lands in MIKE+'s SWMM tables (mss_Node, mss_Link, mss_Project, ... ; subcatchments in msm_Catchment) and the tool switches the model type to CS_SWMM so the imported simulation setup is the active one. mike_model_info then reports the mss_* counts and setups.

Tool

• mike_import_swmm — {inp, out_sqlite, kind?='swmm'|'epanet', overwrite?, srid?, projection?} → {sqlite, inp_used, patched_outfalls_gated[], active_model, active_simulation, unit_system, simulations[], counts{nodes,links,catchments}, inp_scan}.

What the tool does for you (verified on MIKE+ 2026)

• Gated column. MIKE+ rejects [OUTFALLS] rows without the optional Gated column (O1 90 FREE, valid for EPA SWMM which assumes NO) with an opaque "Error importing from SWMM file." The tool writes a patched COPY <name>.mikeplus.inp next to out_sqlite (adds NO), imports that, and lists the rows in patched_outfalls_gated. Your original .inp is never modified.
• Model type. Sets m_ModelSetting.ModelNo = 2 (SWMM) so active_model = CS_SWMM and the imported mss_Project setup is active.
• Failure hints. On failure the error names the likely cause: gated-less outfalls, or the model is bigger than the demo-mode limit (more than 10 subcatchments fails when no license is checked out).

Conventions

• Needs a real license for anything but toy models: if the error mentions the demo limit, the GUI or another process holds the seat: free it, wait, retry once; do not loop.
• overwrite defaults to false; the tool refuses to clobber an existing .sqlite.
• External files referenced by the .inp (FILE "rain.dat" time series) are not copied; keep them next to the .inp and check inp_scan.TIMESERIES vs what the model expects.
• After import: mike_model_info (expect CS_SWMM, mss_* counts) → copy the folder → mike_run. Running an imported SWMM-type model through mike_run has not been verified live yet (license); gate on status as always and report what you see.
• EPANET (kind='epanet') uses the same call; the model type is left as MIKE+ sets it (report active_model).

Orchestration

mike_import_swmm {inp, out_sqlite: runs/<case>/00_model/<name>.sqlite}
mike_model_info  {sqlite}                    -> CS_SWMM, setups, counts
mike_run         {sqlite}  (license)         -> result files -> mike-results / mike-plot
mike_manifest_write {model, inputs: [inp, inp_used], ...}