Chaste  Release::3.4
SphereGeometryBoundaryCondition.cpp
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35 
36 #include "SphereGeometryBoundaryCondition.hpp"
37 #include "NodeBasedCellPopulation.hpp"
38 
39 template<unsigned DIM>
41  c_vector<double, DIM> centre,
42  double radius,
43  double distance)
44  : AbstractCellPopulationBoundaryCondition<DIM>(pCellPopulation),
45  mCentreOfSphere(centre),
46  mRadiusOfSphere(radius),
47  mMaximumDistance(distance)
48 {
49  assert(mRadiusOfSphere > 0.0);
50  assert(mMaximumDistance > 0.0);
51 
52  if (dynamic_cast<NodeBasedCellPopulation<DIM>*>(this->mpCellPopulation) == NULL)
53  {
54  EXCEPTION("A NodeBasedCellPopulation must be used with this boundary condition object.");
55  }
56  if (DIM == 1)
57  {
58  EXCEPTION("This boundary condition is not implemented in 1D.");
59  }
60 }
61 
62 template<unsigned DIM>
64 {
65  return mCentreOfSphere;
66 }
67 
68 template<unsigned DIM>
70 {
71  return mRadiusOfSphere;
72 }
73 
74 template<unsigned DIM>
75 void SphereGeometryBoundaryCondition<DIM>::ImposeBoundaryCondition(const std::map<Node<DIM>*, c_vector<double, DIM> >& rOldLocations)
76 {
77  // Iterate over the cell population
78  for (typename AbstractCellPopulation<DIM>::Iterator cell_iter = this->mpCellPopulation->Begin();
79  cell_iter != this->mpCellPopulation->End();
80  ++cell_iter)
81  {
82  // Find the radial distance between this cell and the surface of the sphere
83  c_vector<double,DIM> cell_location = this->mpCellPopulation->GetLocationOfCellCentre(*cell_iter);
84  double radius = norm_2(cell_location - mCentreOfSphere);
85  assert(radius != 0.0); //Can't project the centre to anywhere sensible
86 
87  // If the cell is too far from the surface of the sphere...
88  if (fabs(radius - mRadiusOfSphere) > mMaximumDistance)
89  {
90  // ...move the cell back onto the surface of the sphere
91  c_vector<double, DIM> location_on_sphere =
92  mCentreOfSphere + mRadiusOfSphere*(cell_location - mCentreOfSphere)/radius;
93 
94  unsigned node_index = this->mpCellPopulation->GetLocationIndexUsingCell(*cell_iter);
95  Node<DIM>* p_node = this->mpCellPopulation->GetNode(node_index);
96 
97  p_node->rGetModifiableLocation() = location_on_sphere;
98  }
99  }
100 }
101 
102 template<unsigned DIM>
104 {
105  bool condition_satisfied = true;
106 
107  // Iterate over the cell population
108  for (typename AbstractCellPopulation<DIM>::Iterator cell_iter = this->mpCellPopulation->Begin();
109  cell_iter != this->mpCellPopulation->End();
110  ++cell_iter)
111  {
112  // Find the radial distance between this cell and the surface of the sphere
113  c_vector<double,DIM> cell_location = this->mpCellPopulation->GetLocationOfCellCentre(*cell_iter);
114  double radius = norm_2(cell_location - mCentreOfSphere);
115 
116  // If the cell is too far from the surface of the sphere...
117  if (fabs(radius - mRadiusOfSphere) > mMaximumDistance)
118  {
119  // ...then the boundary condition is not satisfied
120  condition_satisfied = false;
121  break;
122  }
123  }
124  return condition_satisfied;
125 }
126 
127 template<unsigned DIM>
129 {
130  *rParamsFile << "\t\t\t<CentreOfSphere>";
131  for (unsigned index=0; index != DIM-1U; index++) // Note: inequality avoids testing index < 0U when DIM=1
132  {
133  *rParamsFile << mCentreOfSphere[index] << ",";
134  }
135  *rParamsFile << mCentreOfSphere[DIM-1] << "</CentreOfSphere>\n";
136 
137  *rParamsFile << "\t\t\t<RadiusOfSphere>" << mRadiusOfSphere << "</RadiusOfSphere>\n";
138  *rParamsFile << "\t\t\t<MaximumDistance>" << mMaximumDistance << "</MaximumDistance>\n";
139 
140  // Call method on direct parent class
142 }
143 
144 // Explicit instantiation
148 
149 // Serialization for Boost >= 1.36
AbstractCellPopulation< ELEMENT_DIM, ELEMENT_DIM > * mpCellPopulation
Definition: Node.hpp:58
void ImposeBoundaryCondition(const std::map< Node< DIM > *, c_vector< double, DIM > > &rOldLocations)
#define EXCEPTION(message)
Definition: Exception.hpp:143
void OutputCellPopulationBoundaryConditionParameters(out_stream &rParamsFile)
#define EXPORT_TEMPLATE_CLASS_SAME_DIMS(CLASS)
SphereGeometryBoundaryCondition(AbstractCellPopulation< DIM > *pCellPopulation, c_vector< double, DIM > centre, double radius, double distance=1e-5)
c_vector< double, SPACE_DIM > & rGetModifiableLocation()
Definition: Node.cpp:152
virtual void OutputCellPopulationBoundaryConditionParameters(out_stream &rParamsFile)=0
const c_vector< double, DIM > & rGetCentreOfSphere() const