scaleProperty.cpp

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#include <tclap/CmdLine.h>
 
#include <algorithm>
#include <cmath>
#include <memory>
#include <numeric>
 
#include "BaseLib/MPI.h"
#include "InfoLib/GitInfo.h"
#include "MeshLib/IO/readMeshFromFile.h"
#include "MeshLib/IO/writeMeshToFile.h"
#include "MeshLib/Mesh.h"
#include "MeshLib/Utils/scaleMeshPropertyVector.h"
 
int main(int argc, char* argv[])
{
    TCLAP::CmdLine cmd(
        "Scales a property of a mesh.\n\n"
        "OpenGeoSys-6 software, version " +
            GitInfoLib::GitInfo::ogs_version +
            ".\n"
            "Copyright (c) 2012-2025, OpenGeoSys Community "
            "(http://www.opengeosys.org)",
        ' ', GitInfoLib::GitInfo::ogs_version);
 
    TCLAP::ValueArg<std::string> out_mesh_arg(
        "o",
        "out-mesh",
        "Output (.vtu). The output mesh is stored to a file of this name",
        true,
        "",
        "OUTPUT_FILE");
    cmd.add(out_mesh_arg);
 
    TCLAP::ValueArg<std::string> property_arg(
        "p",
        "property-name",
        "the name of the property the values are stored for",
        true,
        "",
        "PROP_NAME");
    cmd.add(property_arg);
 
    TCLAP::ValueArg<std::string> mesh_arg(
        "m", "mesh", "Input (.vtu). The input mesh is read from this file",
        true, "", "INPUT_FILE");
    cmd.add(mesh_arg);
 
    std::vector<std::string> allowed_units{"mm/a", "mm/month", "m/s"};
    TCLAP::ValuesConstraint<std::string> allowed_units_constraints{
        allowed_units};
    TCLAP::ValueArg<std::string> unit_arg("u",
                                          "input-unit",
                                          "input unit of the data",
                                          true,
                                          "m/s",
                                          &allowed_units_constraints);
    cmd.add(unit_arg);
 
    cmd.parse(argc, argv);
 
    BaseLib::MPI::Setup mpi_setup(argc, argv);
 
    std::unique_ptr<MeshLib::Mesh> mesh(
        MeshLib::IO::readMeshFromFile(mesh_arg.getValue()));
 
    double scale(1.0);
    if (unit_arg.getValue() == "m/s")
    {
        scale = 1.0;
    }
    else if (unit_arg.getValue() == "mm/a")
    {
        scale = 1e-3 / (365.25 * 86400);
    }
    else if (unit_arg.getValue() == "mm/month")
    {
        scale = 1e-3 * (12.0 / (365.25 * 86400));
    }
 
    MeshLib::scaleMeshPropertyVector(*mesh, property_arg.getValue(), scale);
 
    MeshLib::IO::writeMeshToFile(*mesh, out_mesh_arg.getValue());
 
    return EXIT_SUCCESS;
}