| 345 | } |
| 346 | |
| 347 | void MshLoader::parse_element_field(std::ifstream& fin) { |
| 348 | size_t num_string_tags; |
| 349 | size_t num_real_tags; |
| 350 | size_t num_int_tags; |
| 351 | |
| 352 | fin >> num_string_tags; |
| 353 | std::string* str_tags = new std::string[num_string_tags]; |
| 354 | for (size_t i=0; i<num_string_tags; i++) { |
| 355 | IOUtils::eat_white_space(fin); |
| 356 | if (fin.peek() == '\"') { |
| 357 | // Handle field name between quoates. |
| 358 | char buf[128]; |
| 359 | fin.get(); // remove the quote at the beginning. |
| 360 | fin.getline(buf, 128, '\"'); |
| 361 | str_tags[i] = std::string(buf); |
| 362 | } else { |
| 363 | fin >> str_tags[i]; |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | fin >> num_real_tags; |
| 368 | Float* real_tags = new Float[num_real_tags]; |
| 369 | for (size_t i=0; i<num_real_tags; i++) |
| 370 | fin >> real_tags[i]; |
| 371 | |
| 372 | fin >> num_int_tags; |
| 373 | int* int_tags = new int[num_int_tags]; |
| 374 | for (size_t i=0; i<num_int_tags; i++) |
| 375 | fin >> int_tags[i]; |
| 376 | |
| 377 | if (num_string_tags <= 0 || num_int_tags <= 2) { |
| 378 | delete [] str_tags; |
| 379 | delete [] real_tags; |
| 380 | delete [] int_tags; |
| 381 | throw INVALID_FORMAT; |
| 382 | } |
| 383 | std::string fieldname = str_tags[0]; |
| 384 | int num_components = int_tags[1]; |
| 385 | int num_entries = int_tags[2]; |
| 386 | VectorF field(num_entries * num_components); |
| 387 | |
| 388 | delete [] str_tags; |
| 389 | delete [] real_tags; |
| 390 | delete [] int_tags; |
| 391 | |
| 392 | if (m_binary) { |
| 393 | size_t num_bytes = (num_components * m_data_size + 4) * num_entries; |
| 394 | char* data = new char[num_bytes]; |
| 395 | IOUtils::eat_white_space(fin); |
| 396 | fin.read(data, num_bytes); |
| 397 | for (size_t i=0; i<num_entries; i++) { |
| 398 | int elem_idx = *reinterpret_cast<int*>(&data[i*(4+num_components*m_data_size)]); |
| 399 | elem_idx -= 1; |
| 400 | size_t base_idx = i*(4+num_components*m_data_size) + 4; |
| 401 | for (size_t j=0; j<num_components; j++) { |
| 402 | field[elem_idx * num_components + j] = *reinterpret_cast<Float*>(&data[base_idx+j*m_data_size]); |
| 403 | } |
| 404 | } |