Function fromUVPoints

source/mrmeshnumpy/MRPythonNumpyExposing.cpp:110–239

}

MR::Mesh fromUVPoints( const pybind11::buffer& xArray, const pybind11::buffer& yArray, const pybind11::buffer& zArray )
{
    pybind11::buffer_info xInfo = xArray.request();
    pybind11::buffer_info yInfo = yArray.request();
    pybind11::buffer_info zInfo = zArray.request();

    MR::Vector2i shape;
    int format = -1; // 0 - float, 1 - double
    auto checkArray = [&] ( const pybind11::buffer_info& info, const std::string& arrayName )->bool
    {
        if ( info.ndim != 2 )
        {
            std::string error = arrayName + " should be 2D";
            throw std::runtime_error( error.c_str() );
        }
        MR::Vector2i thisShape;
        thisShape.x = int( info.shape[0] );
        thisShape.y = int( info.shape[1] );
        if ( shape == MR::Vector2i() )
            shape = thisShape;
        else if ( shape != thisShape )
        {
            std::string error = "Input arrays shapes should be same";
            throw std::runtime_error( error.c_str() );
        }
        int thisFormat = -1;
        if ( info.format == pybind11::format_descriptor<float>::format() )
            thisFormat = 0;
        else if ( info.format == pybind11::format_descriptor<double>::format() )
            thisFormat = 1;

        if ( format == -1 )
            format = thisFormat;

        if ( format == -1 )
        {
            std::string error = arrayName + " dtype should be float32 or float64";
            throw std::runtime_error( error.c_str() );
        }
        if ( format != thisFormat )
        {
            std::string error = "Arrays should have same dtype";
            throw std::runtime_error( error.c_str() );
        }
        return true;
    };

    if ( !checkArray( xInfo, "X" ) || !checkArray( yInfo, "Y" ) || !checkArray( zInfo, "Z" ) )
        return {};

    assert( format != -1 );
    float* fDataPtr[3];
    double* dDataPtr[3];
    std::function<float( int coord, int i )> getter;
    if ( format == 0 )
    {
        fDataPtr[0] = reinterpret_cast< float* >( xInfo.ptr );
        fDataPtr[1] = reinterpret_cast< float* >( yInfo.ptr );