Method regroup_attribute_names

src/IO/PLYWriter.cpp:88–131

}

void PLYWriter::regroup_attribute_names(Mesh& mesh) {
    const size_t num_vertices = mesh.get_num_vertices();
    const size_t num_faces = mesh.get_num_faces();
    const size_t num_voxels = mesh.get_num_voxels();

    m_vertex_attr_names.clear();
    m_face_attr_names.clear();
    m_voxel_attr_names.clear();

    for (NameArray::const_iterator itr = m_attr_names.begin();
            itr != m_attr_names.end(); itr++) {
        const std::string& name = *itr;
        if (!mesh.has_attribute(name)) {
            std::stringstream err_msg;
            err_msg << "Outputing PLY file failed because attribute \""
                << name << "\" does not exist!" << std::endl;
            throw RuntimeError(err_msg.str());
        }

        const VectorF& attr = mesh.get_attribute(name);
        const size_t attr_size = attr.size();
        if (name.substr(0, 6) == "vertex" && num_vertices > 0 && attr_size % num_vertices == 0) {
            m_vertex_attr_names.push_back(name);
        } else if (name.substr(0, 4) == "face" && num_faces > 0 && attr_size % num_faces== 0) {
            m_face_attr_names.push_back(name);
        } else if (name.substr(0, 5) == "voxel" && num_voxels > 0 && attr_size % num_voxels== 0) {
            m_voxel_attr_names.push_back(name);
        } else if (name == "corner_texture" && num_faces > 0 && attr_size % num_faces == 0) {
            m_face_attr_names.push_back(name);
        } else {
            // Use cardinality to determine attribute type.
            if (num_vertices > 0 && attr_size % num_vertices == 0) {
                m_vertex_attr_names.push_back(name);
            } else if (num_faces > 0 && attr_size % num_faces == 0) {
                m_face_attr_names.push_back(name);
            } else if (num_voxels > 0 && attr_size % num_voxels == 0) {
                m_voxel_attr_names.push_back(name);
            } else {
                std::cerr << "Unkown attribute type (" << name << ") ignored."
                    << std::endl;
            }
        }
    }
}

void PLYWriter::add_vertex_elements_header(Mesh& mesh, p_ply& ply) {
    const size_t dim = mesh.get_dim();