/usr/include/deal.II/hp/dof_handler.h is in libdeal.ii-dev 6.3.1-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 | //----------------------------------------------------------------------
// $Id: dof_handler.h 21036 2010-04-26 04:48:58Z kanschat $
// Version: $Name$
//
// Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 by the deal.II authors
//
// This file is subject to QPL and may not be distributed
// without copyright and license information. Please refer
// to the file deal.II/doc/license.html for the text and
// further information on this license.
//
//----------------------------------------------------------------------
#ifndef __deal2__hp_dof_handler_h
#define __deal2__hp_dof_handler_h
#include <base/config.h>
#include <base/exceptions.h>
#include <base/template_constraints.h>
#include <base/smartpointer.h>
#include <dofs/function_map.h>
#include <dofs/dof_iterator_selector.h>
#include <hp/fe_collection.h>
#include <vector>
#include <map>
#include <set>
DEAL_II_NAMESPACE_OPEN
namespace internal
{
namespace hp
{
template <int> class DoFLevel;
template <int> class DoFFaces;
template <int> class DoFObjects;
namespace DoFHandler
{
struct Implementation;
}
}
}
namespace internal
{
namespace DoFAccessor
{
struct Implementation;
}
namespace DoFCellAccessor
{
struct Implementation;
}
}
namespace hp
{
/**
* Manage the distribution and numbering of the degrees of freedom for
* hp-FEM algorithms.
*
* This class has not yet been implemented for the use in the codimension
* one case (<tt>spacedim != dim </tt>).
*
* @ingroup hp
*/
template <int dim, int spacedim=dim>
class DoFHandler : public Subscriptor,
protected Triangulation<dim,spacedim>::RefinementListener
{
typedef internal::DoFHandler::Iterators<DoFHandler<dim,spacedim> > IteratorSelector;
public:
typedef typename IteratorSelector::CellAccessor cell_accessor;
typedef typename IteratorSelector::FaceAccessor face_accessor;
typedef typename IteratorSelector::raw_line_iterator raw_line_iterator;
typedef typename IteratorSelector::line_iterator line_iterator;
typedef typename IteratorSelector::active_line_iterator active_line_iterator;
typedef typename IteratorSelector::raw_quad_iterator raw_quad_iterator;
typedef typename IteratorSelector::quad_iterator quad_iterator;
typedef typename IteratorSelector::active_quad_iterator active_quad_iterator;
typedef typename IteratorSelector::raw_hex_iterator raw_hex_iterator;
typedef typename IteratorSelector::hex_iterator hex_iterator;
typedef typename IteratorSelector::active_hex_iterator active_hex_iterator;
typedef typename IteratorSelector::raw_cell_iterator raw_cell_iterator;
typedef typename IteratorSelector::cell_iterator cell_iterator;
typedef typename IteratorSelector::active_cell_iterator active_cell_iterator;
typedef typename IteratorSelector::raw_face_iterator raw_face_iterator;
typedef typename IteratorSelector::face_iterator face_iterator;
typedef typename IteratorSelector::active_face_iterator active_face_iterator;
/**
* Alias the @p FunctionMap type
* declared elsewhere.
*/
typedef typename FunctionMap<spacedim>::type FunctionMap;
/**
* Make the dimension available
* in function templates.
*/
static const unsigned int dimension = dim;
/**
* Make the space dimension available
* in function templates.
*/
static const unsigned int space_dimension = spacedim;
/**
* When the arrays holding the
* DoF indices are set up, but
* before they are filled with
* actual values, they are set to
* an invalid value, in order to
* monitor possible
* problems. This invalid value
* is the constant defined here.
*
* Please note that you should
* not rely on it having a
* certain value, but rather take
* its symbolic name.
*/
static const unsigned int invalid_dof_index = numbers::invalid_unsigned_int;
/**
* The default index of the
* finite element to be used on
* a given cell. For the usual,
* non-hp dealii::DoFHandler class
* that only supports the same
* finite element to be used on
* all cells, the index of the
* finite element needs to be
* the same on all cells
* anyway, and by convention we
* pick zero for this
* value. The situation here is
* different, since the hp
* classes support the case
* where different finite
* element indices may be used
* on different cells. The
* default index consequently
* corresponds to an invalid
* value.
*/
static const unsigned int default_fe_index = numbers::invalid_unsigned_int;
/**
* Constructor. Take @p tria as the
* triangulation to work on.
*/
DoFHandler (const Triangulation<dim,spacedim> &tria);
/**
* Destructor.
*/
virtual ~DoFHandler ();
/**
* Go through the triangulation and
* distribute the degrees of freedoms
* needed for the given finite element
* according to the current distribution
* of active fe indices.
*
* A pointer of the transferred
* finite element is
* stored. Therefore, the
* lifetime of the finite element
* object shall be longer than
* that of this object. If you
* don't want this behaviour, you
* may want to call the @p clear
* member function which also
* releases the lock of this
* object to the finite element.
*/
virtual void distribute_dofs (const hp::FECollection<dim,spacedim> &fe);
/**
* Go through the triangulation and set
* the active FE indices of all active
* cells to the values given in @p
* active_fe_indices.
*/
void set_active_fe_indices (const std::vector<unsigned int>& active_fe_indices);
/**
* Go through the triangulation and
* store the active FE indices of all
* active cells to the vector @p
* active_fe_indices. This vector is
* resized, if necessary.
*/
void get_active_fe_indices (std::vector<unsigned int>& active_fe_indices) const;
/**
* Clear all data of this object and
* especially delete the lock this object
* has to the finite element used the last
* time when @p distribute_dofs was called.
*/
virtual void clear ();
/**
* Renumber degrees of freedom based on
* a list of new dof numbers for all the
* dofs.
*
* @p new_numbers is an array of integers
* with size equal to the number of dofs
* on the present grid. It stores the new
* indices after renumbering in the
* order of the old indices.
*
* This function is called by
* the functions in
* DoFRenumbering function
* after computing the ordering
* of the degrees of freedom.
* However, you can call this
* function yourself, which is
* necessary if a user wants to
* implement an ordering scheme
* herself, for example
* downwind numbering.
*
* The @p new_number array must
* have a size equal to the
* number of degrees of
* freedom. Each entry must
* state the new global DoF
* number of the degree of
* freedom referenced.
*/
void renumber_dofs (const std::vector<unsigned int> &new_numbers);
/**
* Return the maximum number of
* degrees of freedom a degree of freedom
* in the given triangulation with the
* given finite element may couple with.
* This is the maximum number of entries
* per line in the system matrix; this
* information can therefore be used upon
* construction of the SparsityPattern
* object.
*
* The returned number is not really the
* maximum number but an estimate based
* on the finite element and the maximum
* number of cells meeting at a vertex.
* The number holds for the constrained
* matrix also.
*
* As for
* DoFHandler::max_couplings_between_dofs(),
* the result of this function is often
* not very accurate for 3d and/or high
* polynomial degrees. The consequences
* are discussed in the documentation
* of the module on @ref Sparsity.
*/
unsigned int max_couplings_between_dofs () const;
/**
* Return the number of degrees of freedom
* located on the boundary another dof on
* the boundary can couple with.
*
* The number is the same as for
* @p max_coupling_between_dofs in one
* dimension less.
*/
unsigned int max_couplings_between_boundary_dofs () const;
/**
* @name Cell iterator functions
*/
/*@{*/
/**
* Iterator to the first cell, used
* or not, on level @p level. If a level
* has no cells, a past-the-end iterator
* is returned.
*
* This function calls @p begin_raw_line
* in 1D and @p begin_raw_quad in 2D.
*/
raw_cell_iterator begin_raw (const unsigned int level = 0) const;
/**
* Iterator to the first used cell
* on level @p level.
*
* This function calls @p begin_line
* in 1D and @p begin_quad in 2D.
*/
cell_iterator begin (const unsigned int level = 0) const;
/**
* Iterator to the first active
* cell on level @p level.
*
* This function calls @p begin_active_line
* in 1D and @p begin_active_quad in 2D.
*/
active_cell_iterator begin_active(const unsigned int level = 0) const;
/**
* Iterator past the end; this
* iterator serves for comparisons of
* iterators with past-the-end or
* before-the-beginning states.
*
* This function calls @p end_line
* in 1D and @p end_quad in 2D.
*/
raw_cell_iterator end () const;
/**
* Return an iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
cell_iterator end (const unsigned int level) const;
/**
* Return a raw iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
raw_cell_iterator end_raw (const unsigned int level) const;
/**
* Return an active iterator which is the
* first iterator not on level. If @p level
* is the last level, then this returns
* <tt>end()</tt>.
*/
active_cell_iterator end_active (const unsigned int level) const;
/**
* Return an iterator pointing to the
* last cell, used or not.
*
* This function calls @p last_raw_line
* in 1D and @p last_raw_quad in 2D.
*/
raw_cell_iterator last_raw () const;
/**
* Return an iterator pointing to the last
* cell of the level @p level, used or not.
*
* This function calls @p last_raw_line
* in 1D and @p last_raw_quad in 2D.
*/
raw_cell_iterator last_raw (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* used cell.
*
* This function calls @p last_line
* in 1D and @p last_quad in 2D.
*/
cell_iterator last () const;
/**
* Return an iterator pointing to the last
* used cell on level @p level.
*
* This function calls @p last_line
* in 1D and @p last_quad in 2D.
*/
cell_iterator last (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* active cell.
*
* This function calls @p last_active_line
* in 1D and @p last_active_quad in 2D.
*/
active_cell_iterator last_active () const;
/**
* Return an iterator pointing to the last
* active cell on level @p level.
*
* This function calls @p last_active_line
* in 1D and @p last_active_quad in 2D.
*/
active_cell_iterator last_active (const unsigned int level) const;
//@}
/*---------------------------------------*/
/**
* @name Face iterator functions
*/
/*@{*/
/**
* Iterator to the first face, used
* or not.
*
* This function calls @p begin_raw_line
* in 2D and @p begin_raw_quad in 3D.
*/
raw_face_iterator begin_raw_face () const;
/**
* Iterator to the first used face.
*
* This function calls @p begin_line
* in 2D and @p begin_quad in 3D.
*/
face_iterator begin_face () const;
/**
* Iterator to the first active face.
*
* This function calls @p begin_active_line
* in 2D and @p begin_active_quad in 3D.
*/
active_face_iterator begin_active_face() const;
/**
* Iterator past the end; this
* iterator serves for comparisons of
* iterators with past-the-end or
* before-the-beginning states.
*
* This function calls @p end_line
* in 2D and @p end_quad in 3D.
*/
raw_face_iterator end_face () const;
/**
* Return a raw iterator past-the-end.
* This is the same as <tt>end_face()</tt>.
*/
raw_face_iterator end_raw_face () const;
/**
* Return an active iterator past-the-end.
* This is the same as <tt>end_face()</tt>.
*/
active_face_iterator end_active_face () const;
/**
* Return an iterator pointing to the
* last face, used or not.
*
* This function calls @p last_raw_line
* in 2D and @p last_raw_quad in 3D.
*/
raw_face_iterator last_raw_face () const;
/**
* Return an iterator pointing to the last
* used face.
*
* This function calls @p last_line
* in 2D and @p last_quad in 3D.
*/
face_iterator last_face () const;
/**
* Return an iterator pointing to the last
* active face.
*
* This function calls @p last_active_line
* in 2D and @p last_active_quad in 3D.
*/
active_face_iterator last_active_face () const;
//@}
/*---------------------------------------*/
/**
* @name Line iterator functions
*/
/*@{*/
/**
* Iterator to the first line, used
* or not, on level @p level. If a level
* has no lines, a past-the-end iterator
* is returned.
*/
raw_line_iterator begin_raw_line (const unsigned int level = 0) const;
/**
* Iterator to the first used line
* on level @p level.
*/
line_iterator begin_line (const unsigned int level = 0) const;
/**
* Iterator to the first active
* line on level @p level.
*/
active_line_iterator begin_active_line(const unsigned int level = 0) const;
/**
* Iterator past the end; this
* iterator serves for comparisons of
* iterators with past-the-end or
* before-the-beginning states.
*/
raw_line_iterator end_line () const;
/**
* Return an iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
line_iterator end_line (const unsigned int level) const;
/**
* Return a raw iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
raw_line_iterator end_raw_line (const unsigned int level) const;
/**
* Return an active iterator which is the
* first iterator not on level. If @p level
* is the last level, then this returns
* <tt>end()</tt>.
*/
active_line_iterator end_active_line (const unsigned int level) const;
/**
* Return an iterator pointing to the
* last line, used or not.
*/
raw_line_iterator last_raw_line () const;
/**
* Return an iterator pointing to the last
* line of the level @p level, used or not.
*/
raw_line_iterator last_raw_line (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* used line.
*/
line_iterator last_line () const;
/**
* Return an iterator pointing to the last
* used line on level @p level.
*/
line_iterator last_line (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* active line.
*/
active_line_iterator last_active_line () const;
/**
* Return an iterator pointing to the last
* active line on level @p level.
*/
active_line_iterator last_active_line (const unsigned int level) const;
/*@}*/
/*---------------------------------------*/
/**
* @name Quad iterator functions*/
/*@{
*/
/**
* Iterator to the first quad, used
* or not, on level @p level. If a level
* has no quads, a past-the-end iterator
* is returned.
*/
raw_quad_iterator begin_raw_quad (const unsigned int level = 0) const;
/**
* Iterator to the first used quad
* on level @p level.
*/
quad_iterator begin_quad (const unsigned int level = 0) const;
/**
* Iterator to the first active
* quad on level @p level.
*/
active_quad_iterator begin_active_quad(const unsigned int level = 0) const;
/**
* Iterator past the end; this
* iterator serves for comparisons of
* iterators with past-the-end or
* before-the-beginning states.
*/
raw_quad_iterator end_quad () const;
/**
* Return an iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
quad_iterator end_quad (const unsigned int level) const;
/**
* Return a raw iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
raw_quad_iterator end_raw_quad (const unsigned int level) const;
/**
* Return an active iterator which is the
* first iterator not on level. If @p level
* is the last level, then this returns
* <tt>end()</tt>.
*/
active_quad_iterator end_active_quad (const unsigned int level) const;
/**
* Return an iterator pointing to the
* last quad, used or not.
*/
raw_quad_iterator last_raw_quad () const;
/**
* Return an iterator pointing to the last
* quad of the level @p level, used or not.
*/
raw_quad_iterator last_raw_quad (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* used quad.
*/
quad_iterator last_quad () const;
/**
* Return an iterator pointing to the last
* used quad on level @p level.
*/
quad_iterator last_quad (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* active quad.
*/
active_quad_iterator last_active_quad () const;
/**
* Return an iterator pointing to the last
* active quad on level @p level.
*/
active_quad_iterator last_active_quad (const unsigned int level) const;
/*@}*/
/*---------------------------------------*/
/**
* @name Hex iterator functions*/
/*@{
*/
/**
* Iterator to the first hex, used
* or not, on level @p level. If a level
* has no hexs, a past-the-end iterator
* is returned.
*/
raw_hex_iterator
begin_raw_hex (const unsigned int level = 0) const;
/**
* Iterator to the first used hex
* on level @p level.
*/
hex_iterator
begin_hex (const unsigned int level = 0) const;
/**
* Iterator to the first active
* hex on level @p level.
*/
active_hex_iterator
begin_active_hex(const unsigned int level = 0) const;
/**
* Iterator past the end; this
* iterator serves for comparisons of
* iterators with past-the-end or
* before-the-beginning states.
*/
raw_hex_iterator
end_hex () const;
/**
* Return an iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
hex_iterator end_hex (const unsigned int level) const;
/**
* Return a raw iterator which is the first
* iterator not on level. If @p level is
* the last level, then this returns
* <tt>end()</tt>.
*/
raw_hex_iterator end_raw_hex (const unsigned int level) const;
/**
* Return an active iterator which is the
* first iterator not on level. If @p level
* is the last level, then this returns
* <tt>end()</tt>.
*/
active_hex_iterator end_active_hex (const unsigned int level) const;
/**
* Return an iterator pointing to the
* last hex, used or not.
*/
raw_hex_iterator
last_raw_hex () const;
/**
* Return an iterator pointing to the last
* hex of the level @p level, used or not.
*/
raw_hex_iterator
last_raw_hex (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* used hex.
*/
hex_iterator
last_hex () const;
/**
* Return an iterator pointing to the last
* used hex on level @p level.
*/
hex_iterator
last_hex (const unsigned int level) const;
/**
* Return an iterator pointing to the last
* active hex.
*/
active_hex_iterator
last_active_hex () const;
/**
* Return an iterator pointing to the last
* active hex on level @p level.
*/
active_hex_iterator
last_active_hex (const unsigned int level) const;
/*@}*/
/*---------------------------------------*/
/**
* Return number of degrees of freedom.
* Included in this number are those
* DoFs which are constrained by
* hanging nodes.
*/
unsigned int n_dofs () const;
/**
* Return the number of degrees of freedom
* located on the boundary.
*/
unsigned int n_boundary_dofs () const;
/**
* Return the number of degrees
* of freedom located on those
* parts of the boundary which
* have a boundary indicator
* listed in the given set. The
* reason that a @p map rather
* than a @p set is used is the
* same as descibed in the
* section on the
* @p make_boundary_sparsity_pattern
* function.
*/
unsigned int
n_boundary_dofs (const FunctionMap &boundary_indicators) const;
/**
* Same function, but with
* different data type of the
* argument, which is here simply
* a list of the boundary
* indicators under
* consideration.
*/
unsigned int
n_boundary_dofs (const std::set<unsigned char> &boundary_indicators) const;
/**
* Return a constant reference to
* the set of finite element
* objects that are used by this
* @p DoFHandler.
*/
const hp::FECollection<dim,spacedim> & get_fe () const;
/**
* Return a constant reference to the
* triangulation underlying this object.
*/
const Triangulation<dim,spacedim> & get_tria () const;
/**
* Determine an estimate for the
* memory consumption (in bytes)
* of this object.
*
* This function is made virtual,
* since a dof handler object
* might be accessed through a
* pointers to thisr base class,
* although the actual object
* might be a derived class.
*/
virtual unsigned int memory_consumption () const;
/**
* Exception
*/
DeclException0 (ExcInvalidTriangulation);
/**
* Exception
*/
DeclException0 (ExcNoFESelected);
/**
* Exception
*/
DeclException0 (ExcRenumberingIncomplete);
/**
* Exception
*/
DeclException0 (ExcGridsDoNotMatch);
/**
* Exception
*/
DeclException0 (ExcInvalidBoundaryIndicator);
/**
* Exception
*/
DeclException1 (ExcMatrixHasWrongSize,
int,
<< "The matrix has the wrong dimension " << arg1);
/**
* Exception
*/
DeclException0 (ExcFunctionNotUseful);
/**
* Exception
*/
DeclException1 (ExcNewNumbersNotConsecutive,
int,
<< "The given list of new dof indices is not consecutive: "
<< "the index " << arg1 << " does not exist.");
/**
* Exception
*/
DeclException2 (ExcInvalidFEIndex,
int, int,
<< "The mesh contains a cell with an active_fe_index of "
<< arg1 << ", but the finite element collection only has "
<< arg2 << " elements");
/**
* Exception
*/
DeclException1 (ExcInvalidLevel,
int,
<< "The given level " << arg1
<< " is not in the valid range!");
/**
* Exception
*/
DeclException0 (ExcFacesHaveNoLevel);
/**
* The triangulation level you
* accessed is empty.
*/
DeclException1 (ExcEmptyLevel,
int,
<< "You tried to do something on level " << arg1
<< ", but this level is empty.");
protected:
/**
* Address of the triangulation to
* work on.
*/
SmartPointer<const Triangulation<dim,spacedim>,DoFHandler<dim,spacedim> > tria;
/**
* Store a pointer to the finite
* element set given latest for
* the distribution of dofs. In
* order to avoid destruction of
* the object before the lifetime
* of the DoF handler, we
* subscribe to the finite
* element object. To unlock the
* FE before the end of the
* lifetime of this DoF handler,
* use the <tt>clear()</tt> function
* (this clears all data of this
* object as well, though).
*/
SmartPointer<const hp::FECollection<dim,spacedim>,hp::DoFHandler<dim,spacedim> > finite_elements;
private:
/**
* Copy constructor. I can see no reason
* why someone might want to use it, so
* I don't provide it. Since this class
* has pointer members, making it private
* prevents the compiler to provide it's
* own, incorrect one if anyone chose to
* copy such an object.
*/
DoFHandler (const DoFHandler &);
/**
* Copy operator. I can see no reason
* why someone might want to use it, so
* I don't provide it. Since this class
* has pointer members, making it private
* prevents the compiler to provide it's
* own, incorrect one if anyone chose to
* copy such an object.
*/
DoFHandler & operator = (const DoFHandler &);
/**
* Free all used memory.
*/
void clear_space ();
/**
* Create default tables for
* the active_fe_indices in
* the
* internal::hp::DoFLevels. They
* are initialized with the a
* zero indicator, meaning
* that fe[0] is going to be
* used by default. This
* method is called before
* refinement and before
* distribute_dofs is
* called. It ensures each
* cell has a valid
* active_fe_index.
*/
void create_active_fe_table ();
/**
* Methods of the
* RefinementListener coming
* from the Triangulation.
* Here they are used to
* administrate the the
* active_fe_fields during the
* spatial refinement.
*/
virtual void pre_refinement_notification (const Triangulation<dim,spacedim> &tria);
virtual void post_refinement_notification (const Triangulation<dim,spacedim> &tria);
/**
* Compute identities between
* DoFs located on
* vertices. Called from
* distribute_dofs().
*/
void
compute_vertex_dof_identities (std::vector<unsigned int> &new_dof_indices) const;
/**
* Compute identities between
* DoFs located on
* lines. Called from
* distribute_dofs().
*/
void
compute_line_dof_identities (std::vector<unsigned int> &new_dof_indices) const;
/**
* Compute identities between
* DoFs located on
* quads. Called from
* distribute_dofs().
*/
void
compute_quad_dof_identities (std::vector<unsigned int> &new_dof_indices) const;
/**
* Renumber the objects with
* the given and all lower
* structural dimensions,
* i.e. renumber vertices by
* giving a template argument
* of zero to the int2type
* argument, lines and vertices
* with one, etc.
*
* Note that in contrast to the
* public renumber_dofs()
* function, these internal
* functions do not ensure that
* the new DoFs are
* contiguously numbered. The
* function may therefore also
* be used to assign different
* DoFs the same number, for
* example to unify hp DoFs
* corresponding to different
* finite elements but
* co-located on the same
* entity.
*/
void renumber_dofs_internal (const std::vector<unsigned int> &new_numbers,
internal::int2type<0>);
void renumber_dofs_internal (const std::vector<unsigned int> &new_numbers,
internal::int2type<1>);
void renumber_dofs_internal (const std::vector<unsigned int> &new_numbers,
internal::int2type<2>);
void renumber_dofs_internal (const std::vector<unsigned int> &new_numbers,
internal::int2type<3>);
/**
* Space to store the DoF
* numbers for the different
* levels. Analogous to the
* <tt>levels[]</tt> tree of
* the Triangulation objects.
*/
std::vector<internal::hp::DoFLevel<dim>*> levels;
/**
* Space to store the DoF
* numbers for the faces.
* Analogous to the
* <tt>faces</tt> pointer of
* the Triangulation objects.
*/
internal::hp::DoFFaces<dim> * faces;
/**
* Store the number of dofs
* created last time.
*/
unsigned int used_dofs;
/**
* Array to store the indices
* for degrees of freedom
* located at vertices.
*
* The format used here, in the
* form of a linked list, is
* the same as used for the
* arrays used in the
* hp::DoFLevel
* hierarchy. Starting indices
* into this array are provided
* by the vertex_dofs_offsets
* field.
*
* Access to this field is
* generally through the
* DoFAccessor::get_vertex_dof_index() and
* DoFAccessor::set_vertex_dof_index()
* functions, encapsulating the
* actual data format used to
* the present class.
*/
std::vector<unsigned int> vertex_dofs;
/**
* For each vertex in the
* triangulation, store the
* offset within the
* vertex_dofs array where the
* dofs for this vertex start.
*
* As for that array, the
* format is the same as
* described in the
* documentation of
* hp::DoFLevel.
*
* Access to this field is
* generally through the
* Accessor::get_vertex_dof_index() and
* Accessor::set_vertex_dof_index()
* functions, encapsulating the
* actual data format used to
* the present class.
*/
std::vector<unsigned int> vertex_dofs_offsets;
/**
* Array to store the
* information, if a cell on
* some level has children or
* not. It is used by the
* refinement listeners as a
* persistent buffer during the
* refinement.
*/
std::vector<std::vector<bool> *> has_children;
/**
* Make accessor objects friends.
*/
template <int, class> friend class dealii::DoFAccessor;
template <class> friend class dealii::DoFCellAccessor;
friend class internal::DoFAccessor::Implementation;
friend class internal::DoFCellAccessor::Implementation;
/**
* Likewise for DoFLevel
* objects since they need to
* access the vertex dofs in
* the functions that set and
* retrieve vertex dof indices.
*/
template <int> friend class internal::hp::DoFLevel;
template <int> friend class internal::hp::DoFObjects;
friend class internal::hp::DoFHandler::Implementation;
};
/* -------------- declaration of explicit specializations ------------- */
#ifndef DOXYGEN
template <> unsigned int DoFHandler<1>::n_boundary_dofs () const;
template <> unsigned int DoFHandler<1>::n_boundary_dofs (const FunctionMap &) const;
template <> unsigned int DoFHandler<1>::n_boundary_dofs (const std::set<unsigned char> &) const;
/* ----------------------- Inline functions ---------------------------------- */
template<int dim, int spacedim>
inline
unsigned int
DoFHandler<dim,spacedim>::n_dofs () const
{
Assert (finite_elements != 0,
ExcMessage ("No finite element collection is associated with "
"this DoFHandler"));
return used_dofs;
}
template<int dim, int spacedim>
inline
const hp::FECollection<dim,spacedim> &
DoFHandler<dim,spacedim>::get_fe () const
{
Assert (finite_elements != 0,
ExcMessage ("No finite element collection is associated with "
"this DoFHandler"));
return *finite_elements;
}
template<int dim, int spacedim>
inline
const Triangulation<dim,spacedim> &
DoFHandler<dim,spacedim>::get_tria () const
{
return *tria;
}
#endif
}
DEAL_II_NAMESPACE_CLOSE
#endif
|