This code is written in Pascal and contains definitions for the SWMM 5 Application Programming Interface (API). It provides functions to run, open, start, step, end, report, and close the SWMM engine. The code also contains functions to retrieve information about the simulation, such as error messages, warnings, count of objects, names of objects, indices of objects, values of properties, and saved values of properties. The code also contains functions to set values of properties and to write lines of text to the output. The code requires the 'swmm5.dll' library to be present to work.
| Constant | Value |
|---|---|
| swmm_GAGE | 0 |
| swmm_SUBCATCH | 1 |
| swmm_NODE | 2 |
| swmm_LINK | 3 |
| swmm_SYSTEM | 100 |
| swmm_JUNCTION | 0 |
| swmm_OUTFALL | 1 |
| swmm_STORAGE | 2 |
| swmm_DIVIDER | 3 |
| swmm_CONDUIT | 0 |
| swmm_PUMP | 1 |
| swmm_ORIFICE | 2 |
| swmm_WEIR | 3 |
| swmm_OUTLET | 4 |
| swmm_GAGE_RAINFALL | 100 |
| swmm_SUBCATCH_AREA | 200 |
| swmm_SUBCATCH_RAINGAGE | 201 |
| swmm_SUBCATCH_RAINFALL | 202 |
| swmm_SUBCATCH_EVAP | 203 |
| swmm_SUBCATCH_INFIL | 204 |
| swmm_SUBCATCH_RUNOFF | 205 |
| swmm_SUBCATCH_RPTFLAG | 206 |
| swmm_NODE_TYPE | 300 |
| swmm_NODE_ELEV | 301 |
| swmm_NODE_MAXDEPTH | 302 |
| swmm_NODE_DEPTH | 303 |
| swmm_NODE_HEAD | 304 |
| swmm_NODE_VOLUME | 305 |
| swmm_NODE_LATFLOW | 306 |
| swmm_NODE_INFLOW | 307 |
| swmm_NODE_OVERFLOW | 308 |
| swmm_NODE_RPTFLAG | 309 |
| swmm_LINK_TYPE | 400 |
| swmm_LINK_NODE1 | 401 |
| swmm_LINK_NODE2 | 402 |
| swmm_LINK_LENGTH | 403 |
| swmm_LINK_SLOPE | 404 |
| swmm_LINK_FULLDEPTH | 405 |
| swmm_LINK_FULLFLOW | 406 |
| swmm_LINK_SETTING | 407 |
| swmm_LINK_TIMEOPEN | 408 |
| swmm_LINK_TIMECLOSED | 409 |
| swmm_LINK_FLOW | 410 |
| swmm_LINK_DEPTH | 411 |
| swmm_LINK_VELOCITY | 412 |
| swmm_LINK_TOPWIDTH | 413 |
| swmm_LINK_RPTFLAG | 414 |
| swmm_STARTDATE | 0 |
| swmm_CURRENTDATE | 1 |
| swmm_ELAPSEDTIME | 2 |
| swmm_ROUTESTEP | 3 |
| swmm_MAXROUTESTEP | 4 |
| swmm_REPORTSTEP | 5 |
| swmm_TOTALSTEPS | 6 |
| swmm_NOREPORT | 7 |
| swmm_FLOWUNITS | 8 |
| swmm_CFS | 0 |
| swmm_GPM | 1 |
| swmm_MGD | 2 |
| swmm_CMS | 3 |
unit swmm5; { Pascal SWMM 5 Interface } interface const swmm_GAGE = 0; swmm_SUBCATCH = 1; swmm_NODE = 2; swmm_LINK = 3; swmm_SYSTEM = 100; swmm_JUNCTION = 0; swmm_OUTFALL = 1; swmm_STORAGE = 2; swmm_DIVIDER = 3; swmm_CONDUIT = 0; swmm_PUMP = 1; swmm_ORIFICE = 2; swmm_WEIR = 3; swmm_OUTLET = 4; swmm_GAGE_RAINFALL = 100; swmm_SUBCATCH_AREA = 200; swmm_SUBCATCH_RAINGAGE = 201; swmm_SUBCATCH_RAINFALL = 202; swmm_SUBCATCH_EVAP = 203; swmm_SUBCATCH_INFIL = 204; swmm_SUBCATCH_RUNOFF = 205; swmm_SUBCATCH_RPTFLAG = 206; swmm_NODE_TYPE = 300; swmm_NODE_ELEV = 301; swmm_NODE_MAXDEPTH = 302; swmm_NODE_DEPTH = 303; swmm_NODE_HEAD = 304; swmm_NODE_VOLUME = 305; swmm_NODE_LATFLOW = 306; swmm_NODE_INFLOW = 307; swmm_NODE_OVERFLOW = 308; swmm_NODE_RPTFLAG = 309; swmm_LINK_TYPE = 400; swmm_LINK_NODE1 = 401; swmm_LINK_NODE2 = 402; swmm_LINK_LENGTH = 403; swmm_LINK_SLOPE = 404; swmm_LINK_FULLDEPTH = 405; swmm_LINK_FULLFLOW = 406; swmm_LINK_SETTING = 407; swmm_LINK_TIMEOPEN = 408; swmm_LINK_TIMECLOSED = 409; swmm_LINK_FLOW = 410; swmm_LINK_DEPTH = 411; swmm_LINK_VELOCITY = 412; swmm_LINK_TOPWIDTH = 413; swmm_LINK_RPTFLAG = 414; swmm_STARTDATE = 0; swmm_CURRENTDATE = 1; swmm_ELAPSEDTIME = 2; swmm_ROUTESTEP = 3; swmm_MAXROUTESTEP = 4; swmm_REPORTSTEP = 5; swmm_TOTALSTEPS = 6; swmm_NOREPORT = 7; swmm_FLOWUNITS = 8; swmm_CFS = 0; swmm_GPM = 1; swmm_MGD = 2; swmm_CMS = 3; swmm_LPS = 4; swmm_MLD = 5; Swmm5Lib = 'swmm5.dll'; function swmm_run(F1: PAnsiChar; F2: PAnsiChar; F3: PAnsiChar): Integer; stdcall; external Swmm5Lib; function swmm_open(F1: PAnsiChar; F2: PAnsiChar; F3: PAnsiChar): Integer; stdcall; external Swmm5Lib; function swmm_start(SaveFlag: Integer): Integer; stdcall; external Swmm5Lib; function swmm_step(var ElapsedTime: Double): Integer; stdcall; external Swmm5Lib; function swmm_stride(StrideStep: Integer; var ElapsedTime: Double): Integer; stdcall; external Swmm5Lib; function swmm_end: Integer; stdcall; external Swmm5Lib; function swmm_report: Integer; stdcall; external Swmm5Lib; function swmm_close: Integer; stdcall; external Swmm5Lib; function swmm_getMassBalErr(var Erunoff: Single; var Eflow: Single; var Equal: Single): Integer; stdcall; external Swmm5Lib; function swmm_getVersion: Integer; stdcall; external Swmm5Lib; function swmm_getError(ErrMsg: PAnsiChar; MsgLen: Integer): Integer; stdcall; external Swmm5Lib; function swmm_getWarnings: Integer; stdcall; external Swmm5Lib; function swmm_getCount(ObjType: Integer): Integer; stdcall; external Swmm5Lib; procedure swmm_getName(ObjType: Integer; Index: Integer; Name: PAnsiChar; Size: Integer); stdcall; external Swmm5Lib; function swmm_getIndex(ObjType: Integer; Name: PAnsiChar): Integer; stdcall; external Swmm5Lib; function swmm_getValue(aProperty: Integer; Index: Integer): Double; stdcall; external Swmm5Lib; procedure swmm_setValue(aProperty: Integer; Index: Integer; Value: Double); stdcall; external Swmm5Lib; function swmm_getSavedValue(aProperty: Integer; Index: Integer; Period: Integer): Double; stdcall; external Swmm5Lib; procedure swmm_writeLine(Line: PAnsiChar); stdcall; external Swmm5Lib; procedure swmm_decodeDate(Date: Double; var Year: Integer; var Month: Integer; var Day: Integer; var Hour: Integer; var Minute: Integer; var Second: Integer; var DayOfWeek: Integer); stdcall; external Swmm5Lib; implementation end.
