MFEM
v4.0
Finite element discretization library
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Class for grid function - Vector with associated FE space. More...
#include <gridfunc.hpp>
Public Types | |
enum | AvgType { ARITHMETIC, HARMONIC } |
Public Member Functions | |
GridFunction () | |
GridFunction (const GridFunction &orig) | |
Copy constructor. The internal true-dof vector t_vec is not copied. More... | |
GridFunction (FiniteElementSpace *f) | |
Construct a GridFunction associated with the FiniteElementSpace *f. More... | |
GridFunction (FiniteElementSpace *f, double *data) | |
Construct a GridFunction using previously allocated array data. More... | |
GridFunction (Mesh *m, std::istream &input) | |
Construct a GridFunction on the given Mesh, using the data from input. More... | |
GridFunction (Mesh *m, GridFunction *gf_array[], int num_pieces) | |
GridFunction & | operator= (const GridFunction &rhs) |
Copy assignment. Only the data of the base class Vector is copied. More... | |
void | MakeOwner (FiniteElementCollection *_fec) |
Make the GridFunction the owner of fec and fes. More... | |
FiniteElementCollection * | OwnFEC () |
int | VectorDim () const |
const Vector & | GetTrueVector () const |
Read only access to the (optional) internal true-dof Vector. More... | |
Vector & | GetTrueVector () |
Read and write access to the (optional) internal true-dof Vector. More... | |
void | GetTrueDofs (Vector &tv) const |
Extract the true-dofs from the GridFunction. If all dofs are true, then tv will be set to point to the data of *this . More... | |
void | SetTrueVector () |
Shortcut for calling GetTrueDofs() with GetTrueVector() as argument. More... | |
virtual void | SetFromTrueDofs (const Vector &tv) |
Set the GridFunction from the given true-dof vector. More... | |
void | SetFromTrueVector () |
Shortcut for calling SetFromTrueDofs() with GetTrueVector() as argument. More... | |
void | GetNodalValues (int i, Array< double > &nval, int vdim=1) const |
Returns the values in the vertices of i'th element for dimension vdim. More... | |
virtual double | GetValue (int i, const IntegrationPoint &ip, int vdim=1) const |
void | GetVectorValue (int i, const IntegrationPoint &ip, Vector &val) const |
void | GetValues (int i, const IntegrationRule &ir, Vector &vals, int vdim=1) const |
void | GetValues (int i, const IntegrationRule &ir, Vector &vals, DenseMatrix &tr, int vdim=1) const |
int | GetFaceValues (int i, int side, const IntegrationRule &ir, Vector &vals, DenseMatrix &tr, int vdim=1) const |
void | GetVectorValues (ElementTransformation &T, const IntegrationRule &ir, DenseMatrix &vals) const |
void | GetVectorValues (int i, const IntegrationRule &ir, DenseMatrix &vals, DenseMatrix &tr) const |
int | GetFaceVectorValues (int i, int side, const IntegrationRule &ir, DenseMatrix &vals, DenseMatrix &tr) const |
void | GetValuesFrom (const GridFunction &orig_func) |
void | GetBdrValuesFrom (const GridFunction &orig_func) |
void | GetVectorFieldValues (int i, const IntegrationRule &ir, DenseMatrix &vals, DenseMatrix &tr, int comp=0) const |
void | ReorderByNodes () |
For a vector grid function, makes sure that the ordering is byNODES. More... | |
void | GetNodalValues (Vector &nval, int vdim=1) const |
Return the values as a vector on mesh vertices for dimension vdim. More... | |
void | GetVectorFieldNodalValues (Vector &val, int comp) const |
void | ProjectVectorFieldOn (GridFunction &vec_field, int comp=0) |
void | GetDerivative (int comp, int der_comp, GridFunction &der) |
double | GetDivergence (ElementTransformation &tr) const |
void | GetCurl (ElementTransformation &tr, Vector &curl) const |
void | GetGradient (ElementTransformation &tr, Vector &grad) const |
void | GetGradients (ElementTransformation &tr, const IntegrationRule &ir, DenseMatrix &grad) const |
void | GetGradients (const int elem, const IntegrationRule &ir, DenseMatrix &grad) const |
void | GetVectorGradient (ElementTransformation &tr, DenseMatrix &grad) const |
void | GetElementAverages (GridFunction &avgs) const |
void | ImposeBounds (int i, const Vector &weights, const Vector &_lo, const Vector &_hi) |
void | ImposeBounds (int i, const Vector &weights, double _min=0.0, double _max=infinity()) |
void | ProjectGridFunction (const GridFunction &src) |
Project the src GridFunction to this GridFunction, both of which must be on the same mesh. More... | |
virtual void | ProjectCoefficient (Coefficient &coeff) |
void | ProjectCoefficient (Coefficient &coeff, Array< int > &dofs, int vd=0) |
void | ProjectCoefficient (VectorCoefficient &vcoeff) |
void | ProjectCoefficient (VectorCoefficient &vcoeff, Array< int > &dofs) |
void | ProjectCoefficient (Coefficient *coeff[]) |
virtual void | ProjectDiscCoefficient (VectorCoefficient &coeff) |
Project a discontinuous vector coefficient as a grid function on a continuous finite element space. The values in shared dofs are determined from the element with maximal attribute. More... | |
virtual void | ProjectDiscCoefficient (Coefficient &coeff, AvgType type) |
Projects a discontinuous coefficient so that the values in shared vdofs are computed by taking an average of the possible values. More... | |
virtual void | ProjectDiscCoefficient (VectorCoefficient &coeff, AvgType type) |
Projects a discontinuous vector coefficient so that the values in shared vdofs are computed by taking an average of the possible values. More... | |
void | ProjectBdrCoefficient (Coefficient &coeff, Array< int > &attr) |
Project a Coefficient on the GridFunction, modifying only DOFs on the boundary associated with the boundary attributes marked in the attr array. More... | |
virtual void | ProjectBdrCoefficient (VectorCoefficient &vcoeff, Array< int > &attr) |
Project a VectorCoefficient on the GridFunction, modifying only DOFs on the boundary associated with the boundary attributes marked in the attr array. More... | |
virtual void | ProjectBdrCoefficient (Coefficient *coeff[], Array< int > &attr) |
Project a set of Coefficients on the components of the GridFunction, modifying only DOFs on the boundary associated with the boundary attributed marked in the attr array. More... | |
void | ProjectBdrCoefficientNormal (VectorCoefficient &vcoeff, Array< int > &bdr_attr) |
virtual void | ProjectBdrCoefficientTangent (VectorCoefficient &vcoeff, Array< int > &bdr_attr) |
Project the tangential components of the given VectorCoefficient on the boundary. Only boundary attributes that are marked in bdr_attr are projected. Assumes ND-type VectorFE GridFunction. More... | |
virtual double | ComputeL2Error (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeL2Error (Coefficient *exsol[], const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeL2Error (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL, Array< int > *elems=NULL) const |
virtual double | ComputeH1Error (Coefficient *exsol, VectorCoefficient *exgrad, Coefficient *ell_coef, double Nu, int norm_type) const |
virtual double | ComputeMaxError (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeMaxError (Coefficient *exsol[], const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeMaxError (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeL1Error (Coefficient &exsol, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeW11Error (Coefficient *exsol, VectorCoefficient *exgrad, int norm_type, Array< int > *elems=NULL, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeL1Error (VectorCoefficient &exsol, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeLpError (const double p, Coefficient &exsol, Coefficient *weight=NULL, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementLpErrors (const double p, Coefficient &exsol, GridFunction &error, Coefficient *weight=NULL, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementL1Errors (Coefficient &exsol, GridFunction &error, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementL2Errors (Coefficient &exsol, GridFunction &error, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementMaxErrors (Coefficient &exsol, GridFunction &error, const IntegrationRule *irs[]=NULL) const |
virtual double | ComputeLpError (const double p, VectorCoefficient &exsol, Coefficient *weight=NULL, VectorCoefficient *v_weight=NULL, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementLpErrors (const double p, VectorCoefficient &exsol, GridFunction &error, Coefficient *weight=NULL, VectorCoefficient *v_weight=NULL, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementL1Errors (VectorCoefficient &exsol, GridFunction &error, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementL2Errors (VectorCoefficient &exsol, GridFunction &error, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeElementMaxErrors (VectorCoefficient &exsol, GridFunction &error, const IntegrationRule *irs[]=NULL) const |
virtual void | ComputeFlux (BilinearFormIntegrator &blfi, GridFunction &flux, int wcoef=1, int subdomain=-1) |
GridFunction & | operator= (double value) |
Redefine '=' for GridFunction = constant. More... | |
GridFunction & | operator= (const Vector &v) |
Copy the data from v. More... | |
virtual void | Update () |
Transform by the Space UpdateMatrix (e.g., on Mesh change). More... | |
FiniteElementSpace * | FESpace () |
const FiniteElementSpace * | FESpace () const |
virtual void | SetSpace (FiniteElementSpace *f) |
Associate a new FiniteElementSpace with the GridFunction. More... | |
virtual void | MakeRef (FiniteElementSpace *f, double *v) |
Make the GridFunction reference external data on a new FiniteElementSpace. More... | |
virtual void | MakeRef (FiniteElementSpace *f, Vector &v, int v_offset) |
Make the GridFunction reference external data on a new FiniteElementSpace. More... | |
void | MakeTRef (FiniteElementSpace *f, double *tv) |
Associate a new FiniteElementSpace and new true-dof data with the GridFunction. More... | |
void | MakeTRef (FiniteElementSpace *f, Vector &tv, int tv_offset) |
Associate a new FiniteElementSpace and new true-dof data with the GridFunction. More... | |
virtual void | Save (std::ostream &out) const |
Save the GridFunction to an output stream. More... | |
void | SaveVTK (std::ostream &out, const std::string &field_name, int ref) |
void | SaveSTL (std::ostream &out, int TimesToRefine=1) |
virtual | ~GridFunction () |
Destroys grid function. More... | |
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Vector () | |
Default constructor for Vector. Sets size = 0 and data = NULL. More... | |
Vector (const Vector &) | |
Copy constructor. Allocates a new data array and copies the data. More... | |
Vector (int s) | |
Creates vector of size s. More... | |
Vector (double *_data, int _size) | |
Creates a vector referencing an array of doubles, owned by someone else. More... | |
Vector (int size_, MemoryType mt) | |
Create a Vector of size size_ using MemoryType mt. More... | |
void | UseDevice (bool use_dev) const |
Enable execution of Vector operations using the mfem::Device. More... | |
bool | UseDevice () const |
Return the device flag of the Memory object used by the Vector. More... | |
void | Load (std::istream **in, int np, int *dim) |
Reads a vector from multiple files. More... | |
void | Load (std::istream &in, int Size) |
Load a vector from an input stream. More... | |
void | Load (std::istream &in) |
Load a vector from an input stream, reading the size from the stream. More... | |
void | SetSize (int s) |
Resize the vector to size s. More... | |
void | SetSize (int s, MemoryType mt) |
Resize the vector to size s using MemoryType mt. More... | |
void | SetSize (int s, Vector &v) |
Resize the vector to size s using the MemoryType of v. More... | |
void | SetData (double *d) |
void | SetDataAndSize (double *d, int s) |
Set the Vector data and size. More... | |
void | NewDataAndSize (double *d, int s) |
Set the Vector data and size, deleting the old data, if owned. More... | |
void | NewMemoryAndSize (const Memory< double > &mem, int s, bool own_mem) |
Reset the Vector to use the given external Memory mem and size s. More... | |
void | MakeDataOwner () const |
Set the Vector data (host pointer) ownership flag. More... | |
void | Destroy () |
Destroy a vector. More... | |
int | Size () const |
Returns the size of the vector. More... | |
int | Capacity () const |
Return the size of the currently allocated data array. More... | |
double * | GetData () const |
Return a pointer to the beginning of the Vector data. More... | |
operator double * () | |
Conversion to double * . More... | |
operator const double * () const | |
Conversion to const double * . More... | |
Memory< double > & | GetMemory () |
Return a reference to the Memory object used by the Vector. More... | |
const Memory< double > & | GetMemory () const |
Return a reference to the Memory object used by the Vector, const version. More... | |
void | SyncMemory (const Vector &v) |
Update the memory location of the vector to match v. More... | |
void | SyncAliasMemory (const Vector &v) |
Update the alias memory location of the vector to match v. More... | |
bool | OwnsData () const |
Read the Vector data (host pointer) ownership flag. More... | |
void | StealData (double **p) |
Changes the ownership of the data; after the call the Vector is empty. More... | |
double * | StealData () |
Changes the ownership of the data; after the call the Vector is empty. More... | |
double & | Elem (int i) |
Access Vector entries. Index i = 0 .. size-1. More... | |
const double & | Elem (int i) const |
Read only access to Vector entries. Index i = 0 .. size-1. More... | |
double & | operator() (int i) |
Access Vector entries using () for 0-based indexing. More... | |
const double & | operator() (int i) const |
Read only access to Vector entries using () for 0-based indexing. More... | |
double | operator* (const double *) const |
Dot product with a double * array. More... | |
double | operator* (const Vector &v) const |
Return the inner-product. More... | |
Vector & | operator= (const double *v) |
Copy Size() entries from v. More... | |
Vector & | operator= (const Vector &v) |
Copy assignment. More... | |
Vector & | operator= (double value) |
Redefine '=' for vector = constant. More... | |
Vector & | operator*= (double c) |
Vector & | operator/= (double c) |
Vector & | operator-= (double c) |
Vector & | operator-= (const Vector &v) |
Vector & | operator+= (const Vector &v) |
Vector & | Add (const double a, const Vector &Va) |
(*this) += a * Va More... | |
Vector & | Set (const double a, const Vector &x) |
(*this) = a * x More... | |
void | SetVector (const Vector &v, int offset) |
void | Neg () |
(*this) = -(*this) More... | |
void | Swap (Vector &other) |
Swap the contents of two Vectors. More... | |
void | median (const Vector &lo, const Vector &hi) |
v = median(v,lo,hi) entrywise. Implementation assumes lo <= hi. More... | |
void | GetSubVector (const Array< int > &dofs, Vector &elemvect) const |
void | GetSubVector (const Array< int > &dofs, double *elem_data) const |
void | SetSubVector (const Array< int > &dofs, const double value) |
Set the entries listed in dofs to the given value . More... | |
void | SetSubVector (const Array< int > &dofs, const Vector &elemvect) |
void | SetSubVector (const Array< int > &dofs, double *elem_data) |
void | AddElementVector (const Array< int > &dofs, const Vector &elemvect) |
Add (element) subvector to the vector. More... | |
void | AddElementVector (const Array< int > &dofs, double *elem_data) |
void | AddElementVector (const Array< int > &dofs, const double a, const Vector &elemvect) |
void | SetSubVectorComplement (const Array< int > &dofs, const double val) |
Set all vector entries NOT in the 'dofs' array to the given 'val'. More... | |
void | Print (std::ostream &out=mfem::out, int width=8) const |
Prints vector to stream out. More... | |
void | Print_HYPRE (std::ostream &out) const |
Prints vector to stream out in HYPRE_Vector format. More... | |
void | Randomize (int seed=0) |
Set random values in the vector. More... | |
double | Norml2 () const |
Returns the l2 norm of the vector. More... | |
double | Normlinf () const |
Returns the l_infinity norm of the vector. More... | |
double | Norml1 () const |
Returns the l_1 norm of the vector. More... | |
double | Normlp (double p) const |
Returns the l_p norm of the vector. More... | |
double | Max () const |
Returns the maximal element of the vector. More... | |
double | Min () const |
Returns the minimal element of the vector. More... | |
double | Sum () const |
Return the sum of the vector entries. More... | |
double | DistanceSquaredTo (const double *p) const |
Compute the square of the Euclidean distance to another vector. More... | |
double | DistanceTo (const double *p) const |
Compute the Euclidean distance to another vector. More... | |
int | CheckFinite () const |
Count the number of entries in the Vector for which isfinite is false, i.e. the entry is a NaN or +/-Inf. More... | |
virtual | ~Vector () |
Destroys vector. More... | |
const double * | Read (bool on_dev=true) const |
Shortcut for mfem::Read(vec.GetMemory(), vec.Size(), on_dev). More... | |
const double * | HostRead () const |
Shortcut for mfem::Read(vec.GetMemory(), vec.Size(), false). More... | |
double * | Write (bool on_dev=true) |
Shortcut for mfem::Write(vec.GetMemory(), vec.Size(), on_dev). More... | |
double * | HostWrite () |
Shortcut for mfem::Write(vec.GetMemory(), vec.Size(), false). More... | |
double * | ReadWrite (bool on_dev=true) |
Shortcut for mfem::ReadWrite(vec.GetMemory(), vec.Size(), on_dev). More... | |
double * | HostReadWrite () |
Shortcut for mfem::ReadWrite(vec.GetMemory(), vec.Size(), false). More... | |
Vector (N_Vector nv) | |
Construct a wrapper Vector from SUNDIALS N_Vector. More... | |
virtual N_Vector | ToNVector () |
Return a new wrapper SUNDIALS N_Vector of type SUNDIALS_NVEC_SERIAL. More... | |
virtual void | ToNVector (N_Vector &nv) |
Update an existing wrapper SUNDIALS N_Vector to point to this Vector. More... | |
Protected Member Functions | |
void | SaveSTLTri (std::ostream &out, double p1[], double p2[], double p3[]) |
void | GetVectorGradientHat (ElementTransformation &T, DenseMatrix &gh) const |
void | ProjectDeltaCoefficient (DeltaCoefficient &delta_coeff, double &integral) |
void | SumFluxAndCount (BilinearFormIntegrator &blfi, GridFunction &flux, Array< int > &counts, int wcoef, int subdomain) |
void | ProjectDiscCoefficient (VectorCoefficient &coeff, Array< int > &dof_attr) |
void | Destroy () |
void | AccumulateAndCountZones (Coefficient &coeff, AvgType type, Array< int > &zones_per_vdof) |
Accumulates (depending on type) the values of coeff at all shared vdofs and counts in how many zones each vdof appears. More... | |
void | AccumulateAndCountZones (VectorCoefficient &vcoeff, AvgType type, Array< int > &zones_per_vdof) |
Accumulates (depending on type) the values of vcoeff at all shared vdofs and counts in how many zones each vdof appears. More... | |
void | AccumulateAndCountBdrValues (Coefficient *coeff[], VectorCoefficient *vcoeff, Array< int > &attr, Array< int > &values_counter) |
void | AccumulateAndCountBdrTangentValues (VectorCoefficient &vcoeff, Array< int > &bdr_attr, Array< int > &values_counter) |
void | ComputeMeans (AvgType type, Array< int > &zones_per_vdof) |
Protected Attributes | |
FiniteElementSpace * | fes |
FE space on which the grid function lives. Owned if fec is not NULL. More... | |
FiniteElementCollection * | fec |
Used when the grid function is read from a file. It can also be set explicitly, see MakeOwner(). More... | |
long | sequence |
Vector | t_vec |
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Memory< double > | data |
int | size |
Class for grid function - Vector with associated FE space.
Definition at line 27 of file gridfunc.hpp.
Enumerator | |
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ARITHMETIC | |
HARMONIC |
Definition at line 239 of file gridfunc.hpp.
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Definition at line 71 of file gridfunc.hpp.
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Copy constructor. The internal true-dof vector t_vec is not copied.
Definition at line 74 of file gridfunc.hpp.
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Construct a GridFunction associated with the FiniteElementSpace *f.
Definition at line 79 of file gridfunc.hpp.
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Construct a GridFunction using previously allocated array data.
The GridFunction does not assume ownership of data which is assumed to be of size at least f->GetVSize()
. Similar to the Vector constructor for externally allocated array, the pointer data can be NULL. The data array can be replaced later using the method SetData().
Definition at line 88 of file gridfunc.hpp.
mfem::GridFunction::GridFunction | ( | Mesh * | m, |
std::istream & | input | ||
) |
Construct a GridFunction on the given Mesh, using the data from input.
The content of input should be in the format created by the method Save(). The reconstructed FiniteElementSpace and FiniteElementCollection are owned by the GridFunction.
Definition at line 30 of file gridfunc.cpp.
mfem::GridFunction::GridFunction | ( | Mesh * | m, |
GridFunction * | gf_array[], | ||
int | num_pieces | ||
) |
Definition at line 64 of file gridfunc.cpp.
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Destroys grid function.
Definition at line 483 of file gridfunc.hpp.
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Definition at line 1445 of file gridfunc.cpp.
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Definition at line 1306 of file gridfunc.cpp.
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Accumulates (depending on type) the values of coeff at all shared vdofs and counts in how many zones each vdof appears.
Definition at line 1216 of file gridfunc.cpp.
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Accumulates (depending on type) the values of vcoeff at all shared vdofs and counts in how many zones each vdof appears.
Definition at line 1254 of file gridfunc.cpp.
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Definition at line 361 of file gridfunc.hpp.
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Definition at line 397 of file gridfunc.hpp.
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Definition at line 367 of file gridfunc.hpp.
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Definition at line 403 of file gridfunc.hpp.
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Compute the Lp error in each element of the mesh and store the results in the GridFunction error. The result should be an L2 GridFunction of order zero using map type VALUE.
Definition at line 2370 of file gridfunc.cpp.
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Compute the Lp error in each element of the mesh and store the results in the GridFunction @ error. The result should be an L2 GridFunction of order zero using map type VALUE.
Definition at line 2524 of file gridfunc.cpp.
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Definition at line 373 of file gridfunc.hpp.
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Definition at line 409 of file gridfunc.hpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 287 of file gridfunc.cpp.
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Definition at line 1994 of file gridfunc.cpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 336 of file gridfunc.hpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 344 of file gridfunc.hpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 306 of file gridfunc.hpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 1892 of file gridfunc.cpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 1949 of file gridfunc.cpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 2305 of file gridfunc.cpp.
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When given a vector weight, compute the pointwise (scalar) error as the dot product of the vector error with the vector weight. Otherwise, the scalar error is the l_2 norm of the vector error.
Reimplemented in mfem::ParGridFunction.
Definition at line 2433 of file gridfunc.cpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 321 of file gridfunc.hpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 2142 of file gridfunc.cpp.
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Reimplemented in mfem::ParGridFunction.
Definition at line 330 of file gridfunc.hpp.
Definition at line 1494 of file gridfunc.cpp.
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Definition at line 2199 of file gridfunc.cpp.
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Definition at line 142 of file gridfunc.cpp.
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Definition at line 430 of file gridfunc.hpp.
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Definition at line 431 of file gridfunc.hpp.
void mfem::GridFunction::GetBdrValuesFrom | ( | const GridFunction & | orig_func | ) |
Definition at line 662 of file gridfunc.cpp.
void mfem::GridFunction::GetCurl | ( | ElementTransformation & | tr, |
Vector & | curl | ||
) | const |
Definition at line 952 of file gridfunc.cpp.
void mfem::GridFunction::GetDerivative | ( | int | comp, |
int | der_comp, | ||
GridFunction & | der | ||
) |
Definition at line 839 of file gridfunc.cpp.
double mfem::GridFunction::GetDivergence | ( | ElementTransformation & | tr | ) | const |
Definition at line 918 of file gridfunc.cpp.
void mfem::GridFunction::GetElementAverages | ( | GridFunction & | avgs | ) | const |
Compute \( (\int_{\Omega} (*this) \psi_i)/(\int_{\Omega} \psi_i) \), where \( \psi_i \) are the basis functions for the FE space of avgs. Both FE spaces should be scalar and on the same mesh.
Definition at line 1058 of file gridfunc.cpp.
int mfem::GridFunction::GetFaceValues | ( | int | i, |
int | side, | ||
const IntegrationRule & | ir, | ||
Vector & | vals, | ||
DenseMatrix & | tr, | ||
int | vdim = 1 |
||
) | const |
Definition at line 478 of file gridfunc.cpp.
int mfem::GridFunction::GetFaceVectorValues | ( | int | i, |
int | side, | ||
const IntegrationRule & | ir, | ||
DenseMatrix & | vals, | ||
DenseMatrix & | tr | ||
) | const |
Definition at line 582 of file gridfunc.cpp.
void mfem::GridFunction::GetGradient | ( | ElementTransformation & | tr, |
Vector & | grad | ||
) | const |
Definition at line 1003 of file gridfunc.cpp.
void mfem::GridFunction::GetGradients | ( | ElementTransformation & | tr, |
const IntegrationRule & | ir, | ||
DenseMatrix & | grad | ||
) | const |
Definition at line 1021 of file gridfunc.cpp.
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Definition at line 196 of file gridfunc.hpp.
void mfem::GridFunction::GetNodalValues | ( | int | i, |
Array< double > & | nval, | ||
int | vdim = 1 |
||
) | const |
Returns the values in the vertices of i'th element for dimension vdim.
Definition at line 355 of file gridfunc.cpp.
void mfem::GridFunction::GetNodalValues | ( | Vector & | nval, |
int | vdim = 1 |
||
) | const |
Return the values as a vector on mesh vertices for dimension vdim.
Definition at line 1190 of file gridfunc.cpp.
void mfem::GridFunction::GetTrueDofs | ( | Vector & | tv | ) | const |
Extract the true-dofs from the GridFunction. If all dofs are true, then tv
will be set to point to the data of *this
.
Definition at line 323 of file gridfunc.cpp.
|
inline |
Read only access to the (optional) internal true-dof Vector.
Note that the returned Vector may be empty, if not previously allocated or set.
Definition at line 121 of file gridfunc.hpp.
|
inline |
Read and write access to the (optional) internal true-dof Vector.
Note that the returned Vector may be empty, if not previously allocated or set.
Definition at line 125 of file gridfunc.hpp.
|
virtual |
Reimplemented in mfem::ParGridFunction.
Definition at line 396 of file gridfunc.cpp.
void mfem::GridFunction::GetValues | ( | int | i, |
const IntegrationRule & | ir, | ||
Vector & | vals, | ||
int | vdim = 1 |
||
) | const |
Definition at line 445 of file gridfunc.cpp.
void mfem::GridFunction::GetValues | ( | int | i, |
const IntegrationRule & | ir, | ||
Vector & | vals, | ||
DenseMatrix & | tr, | ||
int | vdim = 1 |
||
) | const |
Definition at line 467 of file gridfunc.cpp.
void mfem::GridFunction::GetValuesFrom | ( | const GridFunction & | orig_func | ) |
Definition at line 625 of file gridfunc.cpp.
void mfem::GridFunction::GetVectorFieldNodalValues | ( | Vector & | val, |
int | comp | ||
) | const |
Definition at line 768 of file gridfunc.cpp.
void mfem::GridFunction::GetVectorFieldValues | ( | int | i, |
const IntegrationRule & | ir, | ||
DenseMatrix & | vals, | ||
DenseMatrix & | tr, | ||
int | comp = 0 |
||
) | const |
Definition at line 699 of file gridfunc.cpp.
void mfem::GridFunction::GetVectorGradient | ( | ElementTransformation & | tr, |
DenseMatrix & | grad | ||
) | const |
Definition at line 1046 of file gridfunc.cpp.
|
protected |
Definition at line 899 of file gridfunc.cpp.
void mfem::GridFunction::GetVectorValue | ( | int | i, |
const IntegrationPoint & | ip, | ||
Vector & | val | ||
) | const |
Definition at line 411 of file gridfunc.cpp.
void mfem::GridFunction::GetVectorValues | ( | ElementTransformation & | T, |
const IntegrationRule & | ir, | ||
DenseMatrix & | vals | ||
) | const |
Definition at line 528 of file gridfunc.cpp.
void mfem::GridFunction::GetVectorValues | ( | int | i, |
const IntegrationRule & | ir, | ||
DenseMatrix & | vals, | ||
DenseMatrix & | tr | ||
) | const |
Definition at line 573 of file gridfunc.cpp.
void mfem::GridFunction::ImposeBounds | ( | int | i, |
const Vector & | weights, | ||
const Vector & | _lo, | ||
const Vector & | _hi | ||
) |
Impose the given bounds on the function's DOFs while preserving its local integral (described in terms of the given weights) on the i'th element through SLBPQ optimization. Intended to be used for discontinuous FE functions.
Definition at line 1132 of file gridfunc.cpp.
void mfem::GridFunction::ImposeBounds | ( | int | i, |
const Vector & | weights, | ||
double | _min = 0.0 , |
||
double | _max = infinity() |
||
) |
Definition at line 1159 of file gridfunc.cpp.
|
inline |
Make the GridFunction the owner of fec and fes.
If the new FiniteElementCollection, _fec, is NULL, ownership of fec and fes is taken away.
Definition at line 112 of file gridfunc.hpp.
|
virtual |
Make the GridFunction reference external data on a new FiniteElementSpace.
This method changes the FiniteElementSpace associated with the GridFunction and sets the pointer v as external data in the GridFunction.
Reimplemented in mfem::ParGridFunction.
Definition at line 188 of file gridfunc.cpp.
|
virtual |
Make the GridFunction reference external data on a new FiniteElementSpace.
This method changes the FiniteElementSpace associated with the GridFunction and sets the data of the Vector v (plus the v_offset) as external data in the GridFunction.
Reimplemented in mfem::ParGridFunction.
Definition at line 196 of file gridfunc.cpp.
void mfem::GridFunction::MakeTRef | ( | FiniteElementSpace * | f, |
double * | tv | ||
) |
Associate a new FiniteElementSpace and new true-dof data with the GridFunction.
Definition at line 207 of file gridfunc.cpp.
void mfem::GridFunction::MakeTRef | ( | FiniteElementSpace * | f, |
Vector & | tv, | ||
int | tv_offset | ||
) |
Associate a new FiniteElementSpace and new true-dof data with the GridFunction.
Definition at line 221 of file gridfunc.cpp.
|
inline |
Copy assignment. Only the data of the base class Vector is copied.
It is assumed that this object and rhs use FiniteElementSpaces that have the same size.
Definition at line 106 of file gridfunc.hpp.
GridFunction & mfem::GridFunction::operator= | ( | double | value | ) |
Redefine '=' for GridFunction = constant.
Definition at line 2614 of file gridfunc.cpp.
GridFunction & mfem::GridFunction::operator= | ( | const Vector & | v | ) |
Copy the data from v.
The size of v must be equal to the size of the associated FiniteElementSpace fes.
Definition at line 2620 of file gridfunc.cpp.
|
inline |
Definition at line 114 of file gridfunc.hpp.
|
inline |
Project a Coefficient on the GridFunction, modifying only DOFs on the boundary associated with the boundary attributes marked in the attr array.
Definition at line 275 of file gridfunc.hpp.
|
virtual |
Project a VectorCoefficient on the GridFunction, modifying only DOFs on the boundary associated with the boundary attributes marked in the attr array.
Reimplemented in mfem::ParGridFunction.
Definition at line 1770 of file gridfunc.cpp.
|
virtual |
Project a set of Coefficients on the components of the GridFunction, modifying only DOFs on the boundary associated with the boundary attributed marked in the attr array.
If a Coefficient pointer in the array coeff is NULL, that component will not be touched.
Reimplemented in mfem::ParGridFunction.
Definition at line 1787 of file gridfunc.cpp.
void mfem::GridFunction::ProjectBdrCoefficientNormal | ( | VectorCoefficient & | vcoeff, |
Array< int > & | bdr_attr | ||
) |
Project the normal component of the given VectorCoefficient on the boundary. Only boundary attributes that are marked in 'bdr_attr' are projected. Assumes RT-type VectorFE GridFunction.
Definition at line 1804 of file gridfunc.cpp.
|
virtual |
Project the tangential components of the given VectorCoefficient on the boundary. Only boundary attributes that are marked in bdr_attr are projected. Assumes ND-type VectorFE GridFunction.
Reimplemented in mfem::ParGridFunction.
Definition at line 1875 of file gridfunc.cpp.
|
virtual |
Reimplemented in mfem::ParGridFunction.
Definition at line 1582 of file gridfunc.cpp.
void mfem::GridFunction::ProjectCoefficient | ( | Coefficient & | coeff, |
Array< int > & | dofs, | ||
int | vd = 0 |
||
) |
Definition at line 1609 of file gridfunc.cpp.
void mfem::GridFunction::ProjectCoefficient | ( | VectorCoefficient & | vcoeff | ) |
Definition at line 1633 of file gridfunc.cpp.
void mfem::GridFunction::ProjectCoefficient | ( | VectorCoefficient & | vcoeff, |
Array< int > & | dofs | ||
) |
Definition at line 1648 of file gridfunc.cpp.
void mfem::GridFunction::ProjectCoefficient | ( | Coefficient * | coeff[] | ) |
Definition at line 1678 of file gridfunc.cpp.
|
protected |
Definition at line 1519 of file gridfunc.cpp.
|
protected |
Project a discontinuous vector coefficient in a continuous space and return in dof_attr the maximal attribute of the elements containing each degree of freedom.
Definition at line 1713 of file gridfunc.cpp.
|
virtual |
Project a discontinuous vector coefficient as a grid function on a continuous finite element space. The values in shared dofs are determined from the element with maximal attribute.
Reimplemented in mfem::ParGridFunction.
Definition at line 1744 of file gridfunc.cpp.
|
virtual |
Projects a discontinuous coefficient so that the values in shared vdofs are computed by taking an average of the possible values.
Reimplemented in mfem::ParGridFunction.
Definition at line 1750 of file gridfunc.cpp.
|
virtual |
Projects a discontinuous vector coefficient so that the values in shared vdofs are computed by taking an average of the possible values.
Reimplemented in mfem::ParGridFunction.
Definition at line 1761 of file gridfunc.cpp.
void mfem::GridFunction::ProjectGridFunction | ( | const GridFunction & | src | ) |
Project the src GridFunction to this GridFunction, both of which must be on the same mesh.
The current implementation assumes that all elements use the same projection matrix.
Definition at line 1088 of file gridfunc.cpp.
void mfem::GridFunction::ProjectVectorFieldOn | ( | GridFunction & | vec_field, |
int | comp = 0 |
||
) |
Definition at line 799 of file gridfunc.cpp.
void mfem::GridFunction::ReorderByNodes | ( | ) |
For a vector grid function, makes sure that the ordering is byNODES.
Definition at line 741 of file gridfunc.cpp.
|
virtual |
Save the GridFunction to an output stream.
Reimplemented in mfem::ParGridFunction.
Definition at line 2627 of file gridfunc.cpp.
void mfem::GridFunction::SaveSTL | ( | std::ostream & | out, |
int | TimesToRefine = 1 |
||
) |
Definition at line 2749 of file gridfunc.cpp.
|
protected |
Definition at line 2729 of file gridfunc.cpp.
void mfem::GridFunction::SaveVTK | ( | std::ostream & | out, |
const std::string & | field_name, | ||
int | ref | ||
) |
Write the GridFunction in VTK format. Note that Mesh::PrintVTK must be called first. The parameter ref > 0 must match the one used in Mesh::PrintVTK.
Definition at line 2652 of file gridfunc.cpp.
|
virtual |
Set the GridFunction from the given true-dof vector.
Reimplemented in mfem::ParGridFunction.
Definition at line 338 of file gridfunc.cpp.
|
inline |
Shortcut for calling SetFromTrueDofs() with GetTrueVector() as argument.
Definition at line 139 of file gridfunc.hpp.
|
virtual |
Associate a new FiniteElementSpace with the GridFunction.
The GridFunction is resized using the SetSize() method.
Reimplemented in mfem::ParGridFunction.
Definition at line 180 of file gridfunc.cpp.
|
inline |
Shortcut for calling GetTrueDofs() with GetTrueVector() as argument.
Definition at line 133 of file gridfunc.hpp.
|
protected |
Definition at line 240 of file gridfunc.cpp.
|
virtual |
Transform by the Space UpdateMatrix (e.g., on Mesh change).
Reimplemented in mfem::ParGridFunction.
Definition at line 152 of file gridfunc.cpp.
int mfem::GridFunction::VectorDim | ( | ) | const |
Definition at line 302 of file gridfunc.cpp.
|
protected |
Used when the grid function is read from a file. It can also be set explicitly, see MakeOwner().
If not NULL, this pointer is owned by the GridFunction.
Definition at line 37 of file gridfunc.hpp.
|
protected |
FE space on which the grid function lives. Owned if fec is not NULL.
Definition at line 31 of file gridfunc.hpp.
|
protected |
Definition at line 39 of file gridfunc.hpp.
|
protected |
Optional, internal true-dof vector: if the FiniteElementSpace fes has a non-trivial (i.e. not NULL) prolongation operator, this Vector may hold associated true-dof values - either owned or external.
Definition at line 44 of file gridfunc.hpp.