Fld2Tecplot.cpp

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#include <cstdio>
#include <cstdlib>
 
#include <LibUtilities/BasicUtils/SessionReader.h>
#include <SolverUtils/Driver.h>
 
#include <PulseWaveSolver/EquationSystems/PulseWaveSystem.h>
 
using namespace std;
using namespace Nektar;
using namespace Nektar::SolverUtils;
 
static std::string SetToOneD =
    LibUtilities::SessionReader::RegisterCmdLineArgument(
        "SetToOneSpaceDimension", "1", "Redefine mesh to be aligned to x-axis");
 
int main(int argc, char *argv[])
{
    if ((argc < 3) || (argc > 4))
    {
        fprintf(stderr, "Usage: ./Fld2Tecplot [-c] file.xml file.fld\n");
        exit(1);
    }
 
    LibUtilities::SessionReaderSharedPtr session;
    SpatialDomains::MeshGraphSharedPtr graph;
    string vDriverModule;
    DriverSharedPtr drv;
 
    try
    {
 
        // Define new input with extra argument to intialisae -OneD=false
        int newargc    = argc + 1;
        char **newargv = new char *[newargc];
 
        newargv[0] = argv[0];
        newargv[1] = new char[31];
        strcpy(newargv[1], "--SetToOneSpaceDimension=false");
 
        for (int i = 1; i < argc; ++i)
        {
            newargv[i + 1] = argv[i];
        }
 
        // Create session reader and MeshGraph.
        session = LibUtilities::SessionReader::CreateInstance(newargc, newargv);
        graph   = SpatialDomains::MeshGraph::Read(session);
        delete[] newargv;
 
        // Create driver
        session->LoadSolverInfo("Driver", vDriverModule, "Standard");
        drv = GetDriverFactory().CreateInstance(vDriverModule, session, graph);
 
        EquationSystemSharedPtr EqSys = drv->GetEqu()[0];
 
        PulseWaveSystemSharedPtr PulseWave;
        if (!(PulseWave = std::dynamic_pointer_cast<PulseWaveSystem>(EqSys)))
        {
            ASSERTL0(false,
                     "Failed to dynamically cast to PulseWaveSystemOutput");
        }
 
        std::string fname(argv[argc - 1]);
        Array<OneD, MultiRegions::ExpListSharedPtr> Vessels;
 
        int ndomains = PulseWave->GetNdomains();
 
        PulseWave->ImportFldToMultiDomains(
            fname, Vessels = PulseWave->UpdateVessels(), ndomains);
        int fdot = fname.find_last_of('.');
 
        if (fdot != std::string::npos)
        {
            string ending = fname.substr(fdot);
 
            // If .chk or .fld we exchange the extension in the output file.
            // For all other files (e.g. .bse) we append the extension to avoid
            // conflicts.
            if (ending == ".chk" || ending == ".fld")
            {
                fname = fname.substr(0, fdot);
            }
        }
 
        fname += ".dat";
 
        ofstream outfile(fname.c_str());
        int nvariables  = session->GetVariables().size();
        std::string var = "";
        int j;
        for (j = 0; j < nvariables - 1; ++j)
        {
            var += session->GetVariable(j) + ", ";
        }
        var += session->GetVariable(j);
 
        Vessels[0]->WriteTecplotHeader(outfile, var);
 
        for (int n = 0; n < ndomains; ++n)
        {
            Vessels[n * nvariables]->WriteTecplotZone(outfile);
            for (int j = 0; j < nvariables; ++j)
            {
                Vessels[n * nvariables + j]->WriteTecplotField(outfile);
            }
 
            Vessels[n * nvariables]->WriteTecplotConnectivity(outfile);
        }
    }
 
    catch (const std::runtime_error &)
    {
        return 1;
    }
    catch (const std::string &eStr)
    {
        cout << "Error: " << eStr << endl;
    }
 
    return 0;
}