Пример #1
0
void NRLib::ReadStormBinarySurf(const std::string & filename,
                                RegularSurface<A> & surface)
{
    std::ifstream file;
    OpenRead(file, filename.c_str(), std::ios::in | std::ios::binary);

    int line = 0;

    // Header
    try {
        std::string token = ReadNext<std::string>(file, line);
        if (token != "STORMGRID_BINARY") {
            throw FileFormatError("Error reading " + filename + ", file is not "
                                  "in STORM binary format.");
        }

        int ni       = ReadNext<int>(file, line);
        int nj       = ReadNext<int>(file, line);
        double dx    = ReadNext<double>(file, line);
        double dy    = ReadNext<double>(file, line);
        double x_min = ReadNext<double>(file, line);
        double x_max = ReadNext<double>(file, line);
        double y_min = ReadNext<double>(file, line);
        double y_max = ReadNext<double>(file, line);

        double lx = x_max - x_min;
        double ly = y_max - y_min;

        if (!NRLibPrivate::Equal(lx/(ni-1), dx)) {
            throw FileFormatError("Inconsistent data in file. dx != lx/(nx-1).");
        }
        if (!NRLibPrivate::Equal(ly/(nj-1), dy)) {
            throw FileFormatError("Inconsistent data in file. dy != ly/(ny-1).");
        }

        surface.Resize(ni, nj);
        surface.SetDimensions(x_min, y_min, lx, ly);

        DiscardRestOfLine(file, line, true);
        ReadBinaryDoubleArray(file, surface.begin(), surface.GetN());

        surface.SetMissingValue(static_cast<A>(STORM_MISSING));

        if (!CheckEndOfFile(file)) {
            throw FileFormatError("File too long.");
        }

        surface.SetName(GetStem(filename));
    }
    catch (EndOfFile& ) {
        throw FileFormatError("Unexcpected end of file found while parsing "
                              " \"" + filename + "\"");
    }
    catch (Exception& e) {
        throw FileFormatError("Error parsing \"" + filename + "\" as a "
                              "STORM surface file at line " + ToString(line) + ":" + e.what() + "\n");
    }
}
Пример #2
0
void  NRLib::ReadSgriSurf(const std::string & filename,
                          RegularSurface<A> & surface,
                          double            & angle)
{
    std::ifstream header_file;
    OpenRead(header_file, filename.c_str(), std::ios::in | std::ios::binary);
    int i;
    std::string tmp_str;
    int dim;
    try {
        //Reading record 1: Version header
        getline(header_file, tmp_str);
        //Reading record 2: Grid dimension
        header_file >> dim;
        if(dim!=2)
            throw Exception("Wrong dimension of Sgri file. We expect a surface, dimension should be 2.\n");

        getline(header_file, tmp_str);
        //Reading record 3 ... 3+dim: Axis labels + grid value label
        std::vector<std::string> axis_labels(dim);
        for (i=0; i<dim; i++)
            getline(header_file, axis_labels[i]);
        if (((axis_labels[0].find("X") == std::string::npos) && (axis_labels[0].find("x") == std::string::npos)) ||
                ((axis_labels[1].find("Y") == std::string::npos) && (axis_labels[1].find("y") == std::string::npos)))
            throw Exception("Wrong axis labels. First axis should be x-axis, second axis should be y-axis.\n");
        // if((axis_labels[0]!="X" && axis_labels[0] !="x") || (axis_labels[1]!="Y" && axis_labels[1]!="y"))
        //  throw Exception("Wrong axis labels. First axis should be x-axis, second axis should be y-axis.\n");
        getline(header_file, tmp_str);
        //int config = IMISSING;

        //Reading record 4+dim: Number of grids
        int n_grid;
        header_file >> n_grid;
        if (n_grid < 1) {
            throw Exception("Error: Number of grids read from sgri file must be >0");
        }
        getline(header_file, tmp_str);
        //Reading record 5+dim ... 5+dim+ngrid-1: Grid labels

        for (i=0; i<n_grid; i++)
            getline(header_file, tmp_str);

        std::vector<float> d_values1(dim);
        std::vector<float> d_values2(dim);
        std::vector<int>   i_values(dim);
        //Reading record 5+dim+ngrid: Scaling factor of grid values
        for (i=0; i<dim; i++)
            header_file >> d_values1[i];
        getline(header_file,tmp_str);
        //Reading record 6+dim+ngrid: Number of samples in each dir.
        for (i=0; i<dim; i++)
            header_file >> i_values[i];
        getline(header_file,tmp_str);
        //Reading record 7+dim+ngrid: Grid sampling in each dir.
        for (i=0; i<dim; i++) {
            header_file >> d_values2[i];
        }
        getline(header_file,tmp_str);
        //Reading record 8+dim+ngrid: First point coord.
        std::vector<float> min_values(dim);
        for (i=0; i<dim; i++)
        {
            header_file >> min_values[i];
        }
        int nx = 1;
        int ny = 1;

        double dx, dy;
        nx      = i_values[0];
        dx     = d_values2[0];
        ny      = i_values[1];
        dy     = d_values2[1];

        if (nx < 1) {
            throw Exception("Error: Number of samples in X-dir must be >= 1.\n");
        }
        if (ny < 1) {
            throw Exception("Error: Number of samples in Y-dir must be >= 1.\n");
        }

        if (dx <= 0.0) {
            throw Exception("Error: Grid sampling in X-dir must be > 0.0.\n");

        }
        if (dy <= 0.0) {
            throw Exception("Error: Grid sampling in Y-dir must be > 0.0.\n");
        }

        double lx = nx*dx;
        double ly = ny*dy;

        double x_min = min_values[0]-0.5*dx; //In regular grid, these are at value;
        double y_min = min_values[1]-0.5*dy; //in sgri, at corner of cell, hence move.

        header_file >> angle;

        surface.Resize(nx, ny, 0.0);
        surface.SetDimensions(x_min, y_min, lx, ly);

        getline(header_file, tmp_str);
        //Reading record 10+dim+ngrid: Undef value
        float missing_code;
        header_file >> missing_code;
        surface.SetMissingValue(missing_code);
        getline(header_file, tmp_str);
        //Reading record 11+dim+ngrid: Filename of binary file
        std::string bin_file_name;
        getline(header_file, tmp_str);
        if (!tmp_str.empty()) {
            std::locale loc;
            int i = 0;
            char c = tmp_str[i];
            while (!std::isspace(c,loc)) {
                i++;
                c = tmp_str[i];
            }
            tmp_str.erase(tmp_str.begin()+i, tmp_str.end());
        }
        if (tmp_str.empty())
            bin_file_name = NRLib::ReplaceExtension(filename, "Sgri");
        else {
            std::string path = GetPath(filename);
            bin_file_name = path + "/" + tmp_str;
        }
        //Reading record 12+dim+ngrid: Complex values
        bool has_complex;
        header_file >> has_complex;
        if (has_complex != 0 ) {
            throw Exception("Error: Can not read Sgri binary file. Complex values?");
        }

        surface.SetName(GetStem(bin_file_name));

        std::ifstream bin_file;
        OpenRead(bin_file, bin_file_name, std::ios::in | std::ios::binary);
        ReadBinaryFloatArray(bin_file, surface.begin(), surface.GetN());
    }
    catch (Exception& e) {
        throw FileFormatError("Error parsing \"" + filename + "\" as a "
                              "Sgri surface file " + e.what() + "\n");
    }
}
Пример #3
0
void NRLib::ReadIrapClassicAsciiSurf(const std::string & filename,
                                     RegularSurface<A> & surface,
                                     double            & angle)
{
    std::ifstream file;
    OpenRead(file, filename);

    int line = 0;
    // Header
    try {
        ReadNext<int>(file, line);   // -996
        int nj       = ReadNext<int>(file, line);
        double dx    = ReadNext<double>(file, line);
        double dy    = ReadNext<double>(file, line);
        // ----------- line shift --------------
        double x_min = ReadNext<double>(file, line);
        double x_max = ReadNext<double>(file, line);
        double y_min = ReadNext<double>(file, line);
        double y_max = ReadNext<double>(file, line);
        // ----------- line shift --------------
        int ni       = ReadNext<int>(file, line);
        angle        = ReadNext<double>(file, line);
        angle        = NRLib::Degree*angle;
        ReadNext<double>(file, line); // rotation origin - x
        ReadNext<double>(file, line); // rotation origin - y
        // ----------- line shift --------------
        ReadNext<int>(file, line);
        ReadNext<int>(file, line);
        ReadNext<int>(file, line);
        ReadNext<int>(file, line);
        ReadNext<int>(file, line);
        ReadNext<int>(file, line);
        ReadNext<int>(file, line);
        //double lx = (ni-1)*dx;
        //double ly = (nj-1)*dy;
        double lx = (x_max - x_min)*cos(angle);
        double ly = (y_max - y_min)*cos(angle);


        if (!NRLibPrivate::Equal(lx/(ni-1), dx)) {
            std::string text = "Inconsistent data in file. dx != lx/(nx-1).\n";
            text += "dx        = "+NRLib::ToString(dx,2)+"\n";
            text += "lx        = "+NRLib::ToString(lx,2)+"\n";
            text += "nx        = "+NRLib::ToString(ni,0)+"\n";
            text += "lx/(nx-1) = "+NRLib::ToString(lx/(ni - 1),2);
            throw FileFormatError(text);
        }
        if (!NRLibPrivate::Equal(ly/(nj-1), dy)) {
            std::string text = "Inconsistent data in file. dy != ly/(ny-1).\n";
            text += "dy        = "+NRLib::ToString(dy,2)+"\n";
            text += "ly        = "+NRLib::ToString(ly,2)+"\n";
            text += "ny        = "+NRLib::ToString(nj,0)+"\n";
            text += "ly/(ny-1) = "+NRLib::ToString(ly/(nj - 1),2);
            throw FileFormatError(text);
        }


        surface.Resize(ni, nj);
        surface.SetDimensions(x_min, y_min, lx, ly);

        ReadAsciiArrayFast(file, surface.begin(), surface.GetN());

        surface.SetMissingValue(static_cast<A>(IRAP_MISSING));

        surface.SetName(GetStem(filename));

        if (!CheckEndOfFile(file)) {
            throw FileFormatError("File too long.");
        }
    }
    catch (EndOfFile& ) {
        throw FileFormatError("Unexcpected end of file found while parsing "
                              " \"" + filename + "\"");
    }
    catch (Exception& e) {
        throw FileFormatError("Error parsing \"" + filename + "\" as a "
                              "IRAP ASCII surface file at line " + ToString(line) + ":" + e.what() + "\n");
    }
}