| 39 | } |
| 40 | |
| 41 | bool OFFParser::parse(const std::string& filename) { |
| 42 | const size_t LINE_SIZE = 256; |
| 43 | char line[LINE_SIZE]; |
| 44 | |
| 45 | std::ifstream fin(filename.c_str()); |
| 46 | if (!fin.is_open()) { |
| 47 | std::stringstream err_msg; |
| 48 | err_msg << "failed to open file \"" << filename << "\""; |
| 49 | throw IOError(err_msg.str()); |
| 50 | } |
| 51 | |
| 52 | next_line(fin, line, LINE_SIZE); |
| 53 | check_header(line); |
| 54 | next_line(fin, line, LINE_SIZE); |
| 55 | parse_geometry_counts(line); |
| 56 | |
| 57 | for (size_t i=0; i<m_num_vertices; i++) { |
| 58 | if (fin.eof()) { |
| 59 | throw IOError("Error in parsing vertices"); |
| 60 | } |
| 61 | next_line(fin, line, LINE_SIZE); |
| 62 | parse_vertex_line(line); |
| 63 | } |
| 64 | |
| 65 | for (size_t i=0; i<m_num_faces; i++) { |
| 66 | if (fin.eof()) { |
| 67 | throw IOError("Error in parsing faces"); |
| 68 | } |
| 69 | next_line(fin, line, LINE_SIZE); |
| 70 | parse_face_line(line); |
| 71 | } |
| 72 | |
| 73 | fin.close(); |
| 74 | unify_faces(); |
| 75 | finalize_colors(); |
| 76 | |
| 77 | if (m_vertices.size() == 0) { |
| 78 | m_dim = 3; // default: 3D |
| 79 | } |
| 80 | if (m_faces.size() == 0) { |
| 81 | m_vertex_per_face = 3; // default: triangle |
| 82 | } |
| 83 | return true; |
| 84 | } |
| 85 | |
| 86 | size_t OFFParser::num_attributes() const { |
| 87 | size_t result = 0; |