src/mesh/cfMesh/meshLibrary/utilities/octrees/meshOctree/meshOctreeModifier/meshOctreeModifierReduceMemoryConsumption.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | cfMesh: A library for mesh generation
   4    \\    /   O peration     |
   5     \\  /    A nd           | Author: Franjo Juretic (franjo.juretic@c-fields.com)
   6      \\/     M anipulation  | Copyright (C) Creative Fields, Ltd.
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of cfMesh.
  10
  11     cfMesh is free software; you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by the
  13     Free Software Foundation; either version 3 of the License, or (at your
  14     option) any later version.
  15
  16     cfMesh is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with cfMesh.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Description
  25
  26 \*---------------------------------------------------------------------------*/
  27
  28 #include "meshOctreeModifier.H"
  29 #include "triSurf.H"
  30 #include "demandDrivenData.H"
  31
  32 // #define DEBUGSearch
  33
  34 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  35
  36 namespace Foam
  37 {
  38
  39 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  40
  41 void meshOctreeModifier::reduceMemoryConsumption()
  42 {
  43     //createListOfLeaves();
  44
  45     const LongList<meshOctreeCube*>& leaves = octree_.leaves_;
  46
  47     forAll(octree_.dataSlots_, slotI)
  48     {
  49         //- deleting triangles
  50         VRWGraph& containedTriangles =
  51             octree_.dataSlots_[slotI].containedTriangles_;
  52         label nElmts = containedTriangles.size();
  53         boolList mayDeleteData(nElmts, true);
  54         forAll(leaves, leafI)
  55         {
  56             const meshOctreeCube& oc = *leaves[leafI];
  57
  58             if(
  59                 oc.hasContainedElements() &&
  60                 oc.slotPtr() == &octree_.dataSlots_[slotI]
  61             )
  62                 mayDeleteData[oc.containedElements()] = false;
  63         }
  64
  65         for(label i=0;i<nElmts;++i)
  66             if( mayDeleteData[i] )
  67                 containedTriangles.setRowSize(i, 0);
  68         containedTriangles.optimizeMemoryUsage();
  69
  70         //- deleting edges
  71         VRWGraph& containedEdges =
  72             octree_.dataSlots_[slotI].containedEdges_;
  73         nElmts = containedEdges.size();
  74         mayDeleteData.setSize(nElmts);
  75         mayDeleteData = true;
  76         forAll(leaves, leafI)
  77         {
  78             const meshOctreeCube& oc = *leaves[leafI];
  79
  80             if(
  81                 oc.hasContainedEdges() &&
  82                 oc.slotPtr() == &octree_.dataSlots_[slotI]
  83             )
  84                 mayDeleteData[oc.containedEdges()] = false;
  85         }
  86
  87         for(label i=0;i<nElmts;++i)
  88             if( mayDeleteData[i] )
  89                 containedEdges.setRowSize(i, 0);
  90
  91         containedEdges.optimizeMemoryUsage();
  92     }
  93 }
  94
  95 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  96
  97 } // End namespace Foam
  98
  99 // ************************************************************************* //