Hermes2D  3.0
Hermes::Hermes2D::MeshFunction< Scalar > Singleton Referenceabstract

Represents a function defined on a mesh. More...

#include <mesh_function.h>

+ Inheritance diagram for Hermes::Hermes2D::MeshFunction< Scalar >:

Public Member Functions

 MeshFunction ()
 Empty constructor.
 
 MeshFunction (MeshSharedPtr mesh)
 Constructor.
 
virtual ~MeshFunction ()
 Destructor.
 
MeshSharedPtr get_mesh () const
 Return the mesh.
 
virtual void copy (const MeshFunction< Scalar > *sln)
 Copy from sln to this instance.
 
virtual void copy (MeshFunctionSharedPtr< Scalar > sln)
 
RefMapget_refmap (bool update=true)
 Return the reference mapping.
 
virtual Func< Scalar > * get_pt_value (double x, double y, bool use_MeshHashGrid=false, Element *e=nullptr)=0
 Return the value at the coordinates x,y.
 
virtual MeshFunction< Scalar > * clone () const =0
 
virtual void multiply (Scalar coef)
 Multiplies the function represented by this class by the given coefficient.
 
virtual void add (MeshFunctionSharedPtr< Scalar > &other_mesh_function, SpaceSharedPtr< Scalar > target_space)
 
virtual Scalar get_approx_max_value (int item=H2D_FN_VAL_0)
 Return the approximate maximum value of this instance.
 
virtual Scalar get_approx_min_value (int item=H2D_FN_VAL_0)
 Return the approximate minimum value of this instance.
 
virtual bool isOkay () const
 State querying helpers.
 
std::string getClassName () const
 Internal.
 
virtual void init ()
 Internal.
 
virtual void free ()
 Frees all precalculated tables.
 
virtual void reinit ()
 Internal.
 
virtual void set_quad_2d (Quad2D *quad_2d)
 
virtual void set_active_element (Element *e)
 
virtual int get_edge_fn_order (int edge)
 Returns the order of the edge number edge of the current active element.
 
template<>
double get_approx_max_value (int item_)
 
template<>
std::complex< double > get_approx_max_value (int item_)
 
template<>
double get_approx_min_value (int item_)
 
template<>
std::complex< double > get_approx_min_value (int item_)
 
- Public Member Functions inherited from Hermes::Hermes2D::Function< Scalar >
 Function ()
 Default constructor.
 
virtual ~Function ()
 
unsigned char get_num_components () const
 Returns the number of components of the function being represented by the class.
 
virtual const Scalar * get_fn_values (int component=0) const
 Returns function values. More...
 
virtual const Scalar * get_dx_values (int component=0) const
 Returns the x partial derivative. More...
 
virtual const Scalar * get_dy_values (int component=0) const
 Returns the y partial derivative. More...
 
Scalar * deep_copy_array (int component=0, int item=0) const
 Returns function values. More...
 
Quad2Dget_quad_2d () const
 Returns the current quadrature points.
 
void set_quad_order (unsigned short order, unsigned short mask=H2D_FN_DEFAULT)
 
virtual const Scalar * get_values (int component, int item) const
 
virtual int get_fn_order () const
 Returns the polynomial degree of the function being represented by the class.
 
virtual void push_transform (int son)
 
virtual void pop_transform ()
 
virtual void set_transform (uint64_t idx)
 
- Public Member Functions inherited from Hermes::Hermes2D::Transformable
Elementget_active_element () const
 
uint64_t get_transform () const
 

Protected Member Functions

void update_refmap ()
 
- Protected Member Functions inherited from Hermes::Hermes2D::Function< Scalar >
virtual void reset_transform ()
 Empties the stack, loads identity transform.
 
virtual void force_transform (uint64_t sub_idx, Trf *ctm)
 For internal use only.
 
virtual int get_edge_fn_order (unsigned char edge) const
 Returns the polynomial degree of the function at given edge. To be overridden in derived classes. More...
 
virtual void precalculate (unsigned short order, unsigned short mask)
 precalculates the current function at the current integration points.
 
void invalidate_values ()
 
- Protected Member Functions inherited from Hermes::Hermes2D::Transformable
double get_transform_jacobian () const
 
Trfget_ctm () const
 
unsigned int get_depth () const
 

Protected Attributes

ElementMode2D mode
 
MeshSharedPtr mesh
 
RefMap refmap
 
- Protected Attributes inherited from Hermes::Hermes2D::Function< Scalar >
Scalar values [H2D_MAX_SOLUTION_COMPONENTS][H2D_NUM_FUNCTION_VALUES][H2D_MAX_INTEGRATION_POINTS_COUNT]
 The data.
 
bool values_valid
 Flag that the data are not 'dirty'.
 
int order
 Current function polynomial order.
 
unsigned char num_components
 Number of vector components.
 
Quad2Dquads [H2D_MAX_QUADRATURES]
 List of available quadratures.
 
int cur_quad
 Active quadrature (index into 'quads')
 
- Protected Attributes inherited from Hermes::Hermes2D::Transformable
Elementelement
 The active element.
 
Trfctm
 Current sub-element transformation matrix.
 
uint64_t sub_idx
 Sub-element transformation index.
 
Trf stack [21]
 Transformation matrix stack.
 
unsigned int top
 Stack top.
 

Friends

class RefMap
 
template<typename T >
class KellyTypeAdapt
 
template<typename T >
class Adapt
 
template<typename T >
class Func
 
template<typename T >
class DiscontinuousFunc
 
template<typename T >
class DiscreteProblem
 
template<typename T >
class NeighborSearch
 
template<typename T >
HERMES_API Func< T > * init_fn (MeshFunction< T > *fu, const int order)
 

Additional Inherited Members

- Static Public Attributes inherited from Hermes::Hermes2D::Transformable
static const unsigned int H2D_MAX_TRN_LEVEL = 15
 If this changes, NeighborSearch::H2D_MAX_NEIGHBORS must change too.
 
- Static Protected Member Functions inherited from Hermes::Hermes2D::Transformable
static void push_transforms (std::set< Transformable * > &transformables, int son)
 
static void pop_transforms (std::set< Transformable * > &transformables)
 
- Static Protected Attributes inherited from Hermes::Hermes2D::Function< Scalar >
static int idx2mask [H2D_NUM_FUNCTION_VALUES][2]
 Index to mask table. More...
 
- Static Protected Attributes inherited from Hermes::Hermes2D::Transformable
static const uint64_t H2D_MAX_IDX = (1ULL << 3 * H2D_MAX_TRN_LEVEL) - 1
 

Detailed Description

template<typename Scalar>
singleton Hermes::Hermes2D::MeshFunction< Scalar >

Represents a function defined on a mesh.

MeshFunction is a base class for all classes representing an arbitrary function superimposed on a mesh (ie., domain). These include the Solution, ExactSolution and Filter classes, which define the concrete behavior and the way the function is (pre)calculated. Any such function can later be visualized.

(This is an abstract class and cannot be instantiated.)

Definition at line 56 of file mesh_function.h.

Member Function Documentation

template<typename Scalar>
void Hermes::Hermes2D::MeshFunction< Scalar >::add ( MeshFunctionSharedPtr< Scalar > &  other_mesh_function,
SpaceSharedPtr< Scalar >  target_space 
)
virtual

Adds another mesh function on the given space. ! Resulting mesh function is a solution.

Reimplemented in Hermes::Hermes2D::Solution< Scalar >, and Hermes::Hermes2D::Solution< double >.

Definition at line 123 of file mesh_function.cpp.


The documentation for this singleton was generated from the following files: