Line data    Source code

       1              : /*
       2              :  * Copyright (c) 2010-2015:  G-CSC, Goethe University Frankfurt
       3              :  * Author: Sebastian Reiter
       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 <vector>
      34              : #include "extrude.h"
      35              : #include "cylinder_extrusion.h"
      36              : #include "lib_grid/algorithms/remeshing/grid_adaption.h"
      37              : #include "lib_grid/algorithms/selection_util.h"
      38              : 
      39              : using namespace std;
      40              : 
      41              : namespace ug
      42              : {
      43              : 
      44              : //      this method actually performs the extrusion. It is only callable from
      45              : //      inside this file.
      46            0 : static bool ExtrudeCylinder(Grid& grid, SubsetHandler* sh, Vertex* vrt,
      47              :                                         const vector3& direction, number height, number radius,
      48              :                                         number rimSnapThreshold,
      49              :                                         Grid::VertexAttachmentAccessor<APosition>& aaPos,
      50              :                                         int bottomSubInd, int cylSubInd,
      51              :                                         Selector* pSel)
      52              : {
      53              : //      we'll use this selector if no selector was specified
      54            0 :         Selector locSel;
      55            0 :         if(!pSel){
      56            0 :                 locSel.assign_grid(grid);
      57              :                 pSel = &locSel;
      58              :         }
      59              :         Selector& sel = *pSel;
      60              :         
      61            0 :         if(!AdaptSurfaceGridToCylinder(sel, grid, vrt, direction, radius, rimSnapThreshold)){
      62              :                 LOG("  WARNING: AdaptSurfaceGridToCylinder failed during ExtrudeCylinder.\n");
      63              :                 return false;
      64              :         }
      65              : 
      66              : //      select boundary edges
      67            0 :         sel.clear<Edge>();
      68            0 :         SelectAreaBoundary(sel, sel.begin<Face>(), sel.end<Face>());
      69              : 
      70              : //      gather faces and edges for extrusion
      71              :         vector<Edge*> vEdges;
      72              :         vector<Face*> vFaces;
      73              : 
      74              :         for(EdgeIterator iter = sel.begin<Edge>();
      75            0 :                 iter != sel.end<Edge>(); ++iter)
      76            0 :                 vEdges.push_back(*iter);
      77              : 
      78              :         for(FaceIterator iter = sel.begin<Face>();
      79            0 :                 iter != sel.end<Face>(); ++iter)
      80            0 :                 vFaces.push_back(*iter);
      81              : 
      82              : //      everything that is extruded shall go into a separate subset
      83              :         bool bSInh = false;
      84              :         int defSubInd = -1;
      85            0 :         if(sh){
      86              :         //      assign faces that will be extruded into a separate subset
      87            0 :                 sh->assign_subset(vFaces.begin(), vFaces.end(), bottomSubInd);
      88              :         //      the rest gets into the next subset
      89              :                 bSInh = sh->subset_inheritance_enabled();
      90              :                 defSubInd = sh->get_default_subset_index();
      91            0 :                 sh->enable_subset_inheritance(false);
      92            0 :                 sh->set_default_subset_index(cylSubInd);             
      93              :         }
      94              : 
      95              :         vector3 scaledDir;
      96              :         VecScale(scaledDir, direction, height);
      97              :         
      98            0 :         Extrude(grid, NULL, &vEdges, &vFaces, scaledDir, EO_CREATE_FACES, aPosition);
      99              : 
     100            0 :         if(sh){
     101              :         //      restore subset handler
     102            0 :                 sh->enable_subset_inheritance(bSInh);
     103            0 :                 sh->set_default_subset_index(defSubInd);
     104              :         }
     105              : 
     106              :         return true;
     107            0 : }
     108              : 
     109            0 : bool ExtrudeCylinder(Grid& grid, SubsetHandler& sh, Vertex* vrt,
     110              :                                         const vector3& direction, number height, number radius,
     111              :                                         number rimSnapThreshold,
     112              :                                         Grid::VertexAttachmentAccessor<APosition>& aaPos,
     113              :                                         int bottomSubInd, int cylSubInd,
     114              :                                         Selector* pSel)
     115              : {
     116            0 :         return ExtrudeCylinder(grid, &sh, vrt, direction, height, radius,
     117            0 :                                                  rimSnapThreshold, aaPos, bottomSubInd, cylSubInd, pSel);
     118              : 
     119              : }
     120              : 
     121            0 : bool ExtrudeCylinder(Grid& grid, Vertex* vrt,
     122              :                                         const vector3& direction, number height, number radius,
     123              :                                         number rimSnapThreshold,
     124              :                                         Grid::VertexAttachmentAccessor<APosition>& aaPos,
     125              :                                         Selector* pSel)
     126              : {
     127            0 :         return ExtrudeCylinder(grid, NULL, vrt, direction, height, radius,
     128            0 :                                                         rimSnapThreshold, aaPos, -1, -1, pSel);
     129              : }
     130              :                                         
     131              : }//     end of namespace