static bool WriteModelData(string fnGDXFile)
{
int status = 0;
string msg = string.Empty;
string[] Indx = new string[gamsglobals.maxdim];
double[] Values = new double[gamsglobals.val_max];
gdx.gdxOpenWrite(fnGDXFile, "XP_Example2", ref status);
if (status != 0)
{
return(GDXError(status, "gdxOpenWrite"));
}
if (0 == gdx.gdxDataWriteStrStart("Demand", "Demand Data", 1, gamsglobals.dt_par, 0))
{
return(GDXError(gdx.gdxGetLastError(), "gdxDataWriteStrStart"));
}
Indx[0] = "New-York"; Values[gamsglobals.val_level] = 324.0; gdx.gdxDataWriteStr(Indx, Values);
Indx[0] = "Chicago"; Values[gamsglobals.val_level] = 299.0; gdx.gdxDataWriteStr(Indx, Values);
Indx[0] = "Topeka"; Values[gamsglobals.val_level] = 274.0; gdx.gdxDataWriteStr(Indx, Values);
if (0 == gdx.gdxDataWriteDone())
{
return(GDXError(gdx.gdxGetLastError(), "gdxDataWriteDone"));
}
if (gdx.gdxClose() != 0)
{
return(GDXError(gdx.gdxGetLastError(), "gdxClose"));
}
return(true);
}
static int Main(string[] args)
{
string Msg = string.Empty;
string Sysdir;
string Producer = string.Empty;
int ErrNr = 0;
int rc;
string[] Indx = new string[gamsglobals.maxdim];
double[] Values = new double[gamsglobals.val_max];
int VarNr = 0;
int NrRecs = 0;
int N = 0;
int Dimen = 0;
string VarName = string.Empty;
int VarTyp = 0;
int D;
if (Environment.GetCommandLineArgs().Length != 2 && Environment.GetCommandLineArgs().Length != 3)
{
Console.WriteLine("**** XP_Example1: incorrect number of parameters");
return 1;
}
String[] arguments = Environment.GetCommandLineArgs();
Sysdir = arguments[1];
Console.WriteLine("XP_Example1 using GAMS system directory: " + Sysdir);
gdx = new gdxcs(Sysdir, ref Msg);
if (Msg != string.Empty)
{
Console.WriteLine("**** Could not load GDX library");
Console.WriteLine("**** " + Msg);
return 1;
}
gdx.gdxGetDLLVersion(ref Msg);
Console.WriteLine("Using GDX DLL version: " + Msg);
if (Environment.GetCommandLineArgs().Length == 2)
{
//write demand data
gdx.gdxOpenWrite("demanddata.gdx", "xp_example1", ref ErrNr);
if (ErrNr != 0) xp_example1.ReportIOError(ErrNr);
if (gdx.gdxDataWriteStrStart("Demand", "Demand data", 1, gamsglobals.dt_par, 0) == 0) ReportGDXError();
WriteData("New-York", 324.0);
WriteData("Chicago", 299.0);
WriteData("Topeka", 274.0);
if (gdx.gdxDataWriteDone() == 0) ReportGDXError();
Console.WriteLine("Demand data written by xp_example1");
}
else
{
rc = gdx.gdxOpenRead(arguments[2], ref ErrNr);
if (ErrNr != 0) ReportIOError(ErrNr);
//read x variable back (non-default level values only)
gdx.gdxFileVersion(ref Msg, ref Producer);
Console.WriteLine("GDX file written using version: " + Msg);
Console.WriteLine("GDX file written by: " + Producer);
if (gdx.gdxFindSymbol("x", ref VarNr) == 0)
{
Console.WriteLine("**** Could not find variable X");
return 1;
}
gdx.gdxSymbolInfo(VarNr, ref VarName, ref Dimen, ref VarTyp);
if (Dimen != 2 || VarTyp != gamsglobals.dt_var)
{
Console.WriteLine("**** X is not a two dimensional variable");
return 1;
}
if (gdx.gdxDataReadStrStart(VarNr, ref NrRecs) == 0) ReportGDXError();
Console.WriteLine("Variable X has " + NrRecs + " records");
while (gdx.gdxDataReadStr(ref Indx, ref Values, ref N) != 0)
{
if(Values[gamsglobals.val_level] == 0.0) //skip level = 0.0 is default
continue;
for (D=0; D<Dimen; D++)
{
Console.Write(Indx[D]);
if (D < Dimen-1) Console.Write(".");
}
Console.WriteLine(" = " + Values[gamsglobals.val_level]);
}
Console.WriteLine("All solution values shown");
gdx.gdxDataReadDone();
}
ErrNr = gdx.gdxClose();
if (ErrNr != 0) ReportIOError(ErrNr);
return 0;
}
static int Main(string[] args)
{
string Msg = string.Empty;
string Sysdir;
string Producer = string.Empty;
int ErrNr = 0;
int rc;
string[] Indx = new string[gamsglobals.maxdim];
double[] Values = new double[gamsglobals.val_max];
int VarNr = 0;
int NrRecs = 0;
int N = 0;
int Dimen = 0;
string VarName = string.Empty;
int VarTyp = 0;
int D;
if (Environment.GetCommandLineArgs().Length != 2 && Environment.GetCommandLineArgs().Length != 3)
{
Console.WriteLine("**** XP_Example1: incorrect number of parameters");
return(1);
}
String[] arguments = Environment.GetCommandLineArgs();
Sysdir = arguments[1];
Console.WriteLine("XP_Example1 using GAMS system directory: " + Sysdir);
gdx = new gdxcs(Sysdir, ref Msg);
if (Msg != string.Empty)
{
Console.WriteLine("**** Could not load GDX library");
Console.WriteLine("**** " + Msg);
return(1);
}
gdx.gdxGetDLLVersion(ref Msg);
Console.WriteLine("Using GDX DLL version: " + Msg);
if (Environment.GetCommandLineArgs().Length == 2)
{
//write demand data
gdx.gdxOpenWrite("demanddata.gdx", "xp_example1", ref ErrNr);
if (ErrNr != 0)
{
xp_example1.ReportIOError(ErrNr);
}
if (gdx.gdxDataWriteStrStart("Demand", "Demand data", 1, gamsglobals.dt_par, 0) == 0)
{
ReportGDXError();
}
WriteData("New-York", 324.0);
WriteData("Chicago", 299.0);
WriteData("Topeka", 274.0);
if (gdx.gdxDataWriteDone() == 0)
{
ReportGDXError();
}
Console.WriteLine("Demand data written by xp_example1");
}
else
{
rc = gdx.gdxOpenRead(arguments[2], ref ErrNr);
if (ErrNr != 0)
{
ReportIOError(ErrNr);
}
//read x variable back (non-default level values only)
gdx.gdxFileVersion(ref Msg, ref Producer);
Console.WriteLine("GDX file written using version: " + Msg);
Console.WriteLine("GDX file written by: " + Producer);
if (gdx.gdxFindSymbol("x", ref VarNr) == 0)
{
Console.WriteLine("**** Could not find variable X");
return(1);
}
gdx.gdxSymbolInfo(VarNr, ref VarName, ref Dimen, ref VarTyp);
if (Dimen != 2 || VarTyp != gamsglobals.dt_var)
{
Console.WriteLine("**** X is not a two dimensional variable");
return(1);
}
if (gdx.gdxDataReadStrStart(VarNr, ref NrRecs) == 0)
{
ReportGDXError();
}
Console.WriteLine("Variable X has " + NrRecs + " records");
while (gdx.gdxDataReadStr(ref Indx, ref Values, ref N) != 0)
{
if (Values[gamsglobals.val_level] == 0.0) //skip level = 0.0 is default
{
continue;
}
for (D = 0; D < Dimen; D++)
{
Console.Write(Indx[D]);
if (D < Dimen - 1)
{
Console.Write(".");
}
}
Console.WriteLine(" = " + Values[gamsglobals.val_level]);
}
Console.WriteLine("All solution values shown");
gdx.gdxDataReadDone();
}
ErrNr = gdx.gdxClose();
if (ErrNr != 0)
{
ReportIOError(ErrNr);
}
return(0);
}