Panzer_UniqueGlobalIndexer_Utilities.cpp

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//           Panzer: A partial differential equation assembly
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#include "PanzerDofMgr_config.hpp"

#include "Panzer_UniqueGlobalIndexer_Utilities.hpp"

using Teuchos::RCP;

namespace panzer {
namespace orientation_helpers {

void computePatternEdgeIndices(const FieldPattern & pattern,std::vector<std::pair<int,int> > & edgeIndices)
{
   unsigned dim = 1;
   shards::CellTopology cellTopo = pattern.getCellTopology();
   for(unsigned e=0;e<cellTopo.getEdgeCount();e++) {
      // get local vertex ids for a this edge
      unsigned local_v0 = cellTopo.getNodeMap(dim,e,0);
      unsigned local_v1 = cellTopo.getNodeMap(dim,e,1);

      // get sub cell indices for geometric pattern
      const std::vector<int> & v0_indices = pattern.getSubcellIndices(0,local_v0);
      const std::vector<int> & v1_indices = pattern.getSubcellIndices(0,local_v1);

      TEUCHOS_ASSERT(v0_indices.size()>0); // there must be a node
      TEUCHOS_ASSERT(v1_indices.size()>0); // there must be a node

      // take the first index on each vertex and make a edge lookup
      edgeIndices.push_back(std::make_pair(v0_indices[0],v1_indices[0]));
   }
}

void computePatternFaceIndices(const FieldPattern & pattern,std::vector<std::vector<int> > & faceIndices)
{
   // this only works for 3D field patterns
   // TEUCHOS_ASSERT(pattern.getDimension()==3);
   //
   unsigned node_dim = 0; // by assumption
   unsigned subcell_dim = 2;

   if(pattern.getDimension()==3) {
      shards::CellTopology cellTopo = pattern.getCellTopology();
   
      faceIndices.resize(cellTopo.getSubcellCount(subcell_dim));
   
      for(unsigned f=0;f<cellTopo.getSubcellCount(subcell_dim);f++) {
         shards::CellTopology faceTopo(cellTopo.getBaseCellTopologyData(subcell_dim,f));
   
         for(unsigned v=0;v<faceTopo.getNodeCount();v++) {
            // get local vertex ids for a this edge
            unsigned local_v = cellTopo.getNodeMap(subcell_dim,f,v);
   
            // get sub cell indices for geometric pattern
            const std::vector<int> & v_indices = pattern.getSubcellIndices(node_dim,local_v);
      
            TEUCHOS_ASSERT(v_indices.size()>0); // there must be a node
      
            // take the first index on each vertex and make a edge lookup
            faceIndices[f].push_back(v_indices[0]);
         }
      }
   }
   else if(pattern.getDimension()==2) {
      shards::CellTopology cellTopo = pattern.getCellTopology();
   
      faceIndices.resize(1);
   
      for(unsigned v=0;v<cellTopo.getNodeCount();v++)
        faceIndices[0].push_back(v);
   }
}

} // end orientation_helpers
} // end panzer