triangulation.cpp

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 *       - Pierre-Henri WUILLEMIN(_at_LIP6)                                 *
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#include <agrum/agrum.h>
 
#include <agrum/base/graphs/algorithms/triangulations/triangulation.h>
 
#include <agrum/base/core/math/math_utils.h>
 
#ifdef GUM_NO_INLINE
#  include <agrum/base/graphs/algorithms/triangulations/triangulation_inl.h>
#endif   // GUM_NO_INLINE
 
namespace gum {
 
  // constructor
  Triangulation::Triangulation() {   // for debugging purposes
    GUM_CONSTRUCTOR(Triangulation);
  }
 
  // constructor with a domain size specified
  Triangulation::Triangulation(const NodeProperty< Size >* domsizes) : domain_sizes_(domsizes) {
    GUM_CONSTRUCTOR(Triangulation);
  }
 
  // destructor
  Triangulation::~Triangulation() {   // for debugging purposes
    GUM_DESTRUCTOR(Triangulation);
  }
 
  // copy constructor
  Triangulation::Triangulation(const Triangulation& from) : domain_sizes_(from.domain_sizes_) {
    GUM_CONS_CPY(Triangulation);
  }
 
  // move constructor
  Triangulation::Triangulation(Triangulation&& from) : domain_sizes_(from.domain_sizes_) {
    GUM_CONS_MOV(Triangulation);
  }
 
  // returns the max of log10DomainSize of cliques in the junction tree
  double Triangulation::maxLog10CliqueDomainSize() {
    double              res = 0.0;
    double              dSize;
    const JunctionTree& jt = junctionTree();   // here, the fact that we get
    // a junction tree ensures that domain_sizes_ is different from nullptr
 
    for (const NodeId cl: jt) {
      dSize = 0.0;
 
      for (const auto node: jt.clique(cl))
        dSize += std::log10((*domain_sizes_)[node]);
 
      if (res < dSize) res = dSize;
    }
 
    return res;
  }
 
} /* namespace gum */