OpenSWMM Engine  6.0.0-alpha.3
Data-oriented, plugin-extensible SWMM Engine (6.0.0-alpha.3)
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Namespaces | Functions
InpWriter.cpp File Reference
Core Engine The core engine module, including lifecycle management, simulation options, and shared utilities.

Comprehensive .inp serialisation — round-trip identical output. More...

#include "InpWriter.hpp"
#include "PathResolver.hpp"
#include "SimulationContext.hpp"
#include "../data/StorageGeometry.hpp"
#include "DateTime.hpp"
#include "UnitConversion.hpp"
#include "../input/PostParseResolver.hpp"
#include "../2d/data/MeshData.hpp"
#include "../2d/data/SolverOptions2D.hpp"
#include "../2d/data/BoundaryData.hpp"
#include "../2d/data/PendingRows2D.hpp"
#include "../2d/data/Serialize2D.hpp"
#include <cmath>
#include <cstdio>
#include <cstring>
#include <filesystem>
#include <string>
#include <unordered_map>
#include <vector>
Include dependency graph for InpWriter.cpp:

Namespaces

namespace  openswmm
 
namespace  openswmm::inp_writer
 

Functions

int openswmm::inp_writer::writeInpFile (const SimulationContext &ctx, const std::string &path, std::vector< std::string > *warnings=nullptr)
 Write the full model to a SWMM .inp file.
 

Detailed Description

Comprehensive .inp serialisation — round-trip identical output.

Writes every SWMM input section with exact column layouts matching the legacy format so that read -> write -> read produces identical model state. Shape names, enum strings, and field widths are taken directly from legacy text.h and keywords.c.

All standard SWMM sections implemented: TITLE, OPTIONS, EVAPORATION, TEMPERATURE, SNOWPACKS, ADJUSTMENTS, EVENTS, RAINGAGES, SUBCATCHMENTS, SUBAREAS, INFILTRATION, JUNCTIONS, OUTFALLS, DIVIDERS, STORAGE, CONDUITS, PUMPS, ORIFICES, WEIRS, OUTLETS, XSECTIONS, LOSSES, TRANSECTS, STREETS, INLETS, CONTROLS, REPORT, POLLUTANTS, LANDUSES, BUILDUP, WASHOFF, TREATMENT, INFLOWS, DWF, RDII, PATTERNS, TIMESERIES, CURVES, MAP, COORDINATES, VERTICES, Polygons, SYMBOLS, USER_FLAGS, USER_FLAG_VALUES, PLUGINS, 2D_OPTIONS, 2D_MESH_FILE (external mode) or 2D_VERTICES, 2D_TRIANGLES, 2D_VERTEX_NODE_MAP, 2D_TRIANGLE_NODE_MAP, 2D_BOUNDARY_CONDITIONS, 2D_EDGE_CONVEYANCE (inline mode)

Author
Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com
Copyright
Copyright (c) 2026 Caleb Buahin. All rights reserved.
License\n MIT License