Line data    Source code

       1              : /*
       2              :  * Copyright (c) 2015:  G-CSC, Goethe University Frankfurt
       3              :  * Author: Andreas Vogel
       4              :  * 
       5              :  * This file is part of UG4.
       6              :  * 
       7              :  * UG4 is free software: you can redistribute it and/or modify it under the
       8              :  * terms of the GNU Lesser General Public License version 3 (as published by the
       9              :  * Free Software Foundation) with the following additional attribution
      10              :  * requirements (according to LGPL/GPL v3 §7):
      11              :  * 
      12              :  * (1) The following notice must be displayed in the Appropriate Legal Notices
      13              :  * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
      14              :  * 
      15              :  * (2) The following notice must be displayed at a prominent place in the
      16              :  * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
      17              :  * 
      18              :  * (3) The following bibliography is recommended for citation and must be
      19              :  * preserved in all covered files:
      20              :  * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
      21              :  *   parallel geometric multigrid solver on hierarchically distributed grids.
      22              :  *   Computing and visualization in science 16, 4 (2013), 151-164"
      23              :  * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
      24              :  *   flexible software system for simulating pde based models on high performance
      25              :  *   computers. Computing and visualization in science 16, 4 (2013), 165-179"
      26              :  * 
      27              :  * This program is distributed in the hope that it will be useful,
      28              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      29              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
      30              :  * GNU Lesser General Public License for more details.
      31              :  */
      32              : 
      33              : #include "subset_dim_util.h"
      34              : #include "lib_grid/lg_base.h"
      35              : 
      36              : namespace ug{
      37              : 
      38              : /// returns if a subset is a regular grid
      39            0 : bool SubsetIsRegularGrid(const SubsetHandler& sh, int si)
      40              : {
      41              : //      check for constraining/constrained elements
      42            0 :         if(sh.num<ConstrainedVertex>(si) > 0) return false;
      43            0 :         if(sh.num<ConstrainedEdge>(si) > 0) return false;
      44            0 :         if(sh.num<ConstrainingEdge>(si) > 0) return false;
      45            0 :         if(sh.num<ConstrainedTriangle>(si) > 0) return false;
      46            0 :         if(sh.num<ConstrainingTriangle>(si) > 0) return false;
      47            0 :         if(sh.num<ConstrainedQuadrilateral>(si) > 0) return false;
      48            0 :         if(sh.num<ConstrainingQuadrilateral>(si) > 0) return false;
      49              : 
      50              : //      if not found, subset describes a regular grid
      51              :         return true;
      52              : }
      53              : 
      54              : /// returns if a subset is a regular grid
      55            0 : bool SubsetIsRegularGrid(const MGSubsetHandler& sh, int si)
      56              : {
      57              : //      check for constraining/constrained elements
      58            0 :         if(sh.num<ConstrainedVertex>(si) > 0) return false;
      59            0 :         if(sh.num<ConstrainedEdge>(si) > 0) return false;
      60            0 :         if(sh.num<ConstrainingEdge>(si) > 0) return false;
      61            0 :         if(sh.num<ConstrainedTriangle>(si) > 0) return false;
      62            0 :         if(sh.num<ConstrainingTriangle>(si) > 0) return false;
      63            0 :         if(sh.num<ConstrainedQuadrilateral>(si) > 0) return false;
      64            0 :         if(sh.num<ConstrainingQuadrilateral>(si) > 0) return false;
      65              : 
      66              : //      if not found, subset describes a regular grid
      67              :         return true;
      68              : }
      69              : 
      70              : /// returns if a subset is a regular grid
      71            0 : bool SubsetIsRegularGrid(const ISubsetHandler& ish, int si)
      72              : {
      73              : //      test SubsetHandler
      74            0 :         const SubsetHandler* sh = dynamic_cast<const SubsetHandler*>(&ish);
      75            0 :         if(sh != NULL)
      76            0 :                 return SubsetIsRegularGrid(*sh, si);
      77              : 
      78              : //      test MGSubsetHandler
      79            0 :         const MGSubsetHandler* mgsh = dynamic_cast<const MGSubsetHandler*>(&ish);
      80            0 :         if(mgsh != NULL)
      81            0 :                 return SubsetIsRegularGrid(*mgsh, si);
      82              : 
      83              : //      unknown type of subset handler
      84            0 :         UG_THROW("Unknown SubsetHandler type.");
      85              :         return false;
      86              : }
      87              : 
      88              : ///     returns the current dimension of the subset
      89            0 : int DimensionOfSubset(const ISubsetHandler& sh, int si)
      90              : {
      91              :         try{
      92            0 :                 return sh.subset_info(si).get_property("dim").to_int();
      93              :         }
      94            0 :         UG_CATCH_THROW("Make sure to properly set the dim-property of each subset "
      95              :                                         "before calling DimensionOfSubset! Use e.g. "
      96              :                                         "Domain::update_local_subset_dim_property, "
      97              :                                         "Domain::update_global_subset_dim_property, "
      98              :                                         "UpdateMaxDimensionOfSubset or UpdateGlobalMaxDimensionOfSubset.");
      99              : }
     100              : 
     101            0 : int DimensionOfSubsets(const ISubsetHandler& sh)
     102              : {
     103              : //      dimension to be computed
     104              :         int dim = DIM_SUBSET_EMPTY_GRID;
     105              : 
     106              : //      loop subsets
     107            0 :         for(int si = 0; si < sh.num_subsets(); ++si)
     108              :         {
     109              :         //      get dimension of subset
     110            0 :                 int siDim = DimensionOfSubset(sh, si);
     111              : 
     112              :         //      if empty grid given, skip
     113            0 :                 if(siDim == DIM_SUBSET_EMPTY_GRID) continue;
     114              : 
     115              :         //      check if dimension is higher than already checked subsets
     116            0 :                 if(dim < siDim)
     117              :                         dim = siDim;
     118              :         }
     119              : 
     120              : //      return computed domain
     121            0 :         return dim;
     122              : }
     123              : 
     124              : } // end namespace ug