Function parseObjTextureVertex

source/MRMesh/MRMeshLoadObj.cpp:202–226

}

Expected<void> parseObjTextureVertex( const std::string_view& str, UVCoord& vt )
{
    using namespace boost::spirit::x3;

    std::array<float, 3> coords{ 0.f, 0.f, 0.f };
    int i = 0;
    auto coord = [&] ( auto& ctx )
    {
        coords[i++] = _attr( ctx );
    };

    bool r = phrase_parse(
            str.begin(),
            str.end(),
            ( lit( "vt" ) >> float_[coord] >> -( float_[coord] >> -( float_[coord] ) ) ),
            ascii::space
    );

    static constexpr int MaxErrorStringLen = 80;
    if ( !r )
        return unexpected( "Failed to parse vertex in OBJ-file: " + std::string( trimRight( str.substr( 0, MaxErrorStringLen ) ) ) );

    vt = { coords[0], coords[1] };
    return {};
}

struct ObjFaceInfo
{