We hope the next version will support INT64.

[KevinWang-kk]

On a 64-bit operating system, boost::graph_traits::vertex_descriptor is std::size_t, which is 64-bit. However, tinyply only supports a maximum integer size of INT32, leading to incorrect PLY file results. We hope the next version will support INT64.

  std::vector<Point>vertices;
  std::vector<std::pair<vertex_descriptor, vertex_descriptor>>edges;

    for (auto vd : boost::make_iterator_range(boost::vertices(g))) {
        vertices.push_back(g[vd]);
    }
    for (auto ed : boost::make_iterator_range(boost::edges(g))) {
        auto src = boost::source(ed, g);
        auto dst = boost::target(ed, g);
        edges.emplace_back(src, dst);
    }
    cube_file.add_properties_to_element("vertex", { "x", "y", "z" },
        Type::FLOAT64, vertices.size(), reinterpret_cast<uint8_t*>(vertices.data()), Type::INVALID, 0);

    cube_file.add_properties_to_element("edge", { "vertex1", "vertex2" },
        Type::INT32, edges.size(), reinterpret_cast<uint8_t*>(edges.data()), Type::INVALID, 0);//INT32 is wrong, we need INT64