DUNE-FEM (unstable)
Generic implementation of a Dune quadrature. More...
#include <dune/fem/quadrature/quadratureimp.hh>
Public Types | |
typedef FieldImp | FieldType |
field type | |
typedef BaseType::CoordinateType | CoordinateType |
type of local coordinates | |
enum | |
to be revised, look at caching quad | |
Public Member Functions | |
const FieldType & | weight (size_t i) const |
obtain weight of i-th integration point More... | |
const CoordinateType & | point (size_t i) const |
obtain coordinates of i-th integration point More... | |
size_t | nop () const |
obtain the number of integration points More... | |
size_t | id () const |
obtain the identifier of the integration point list More... | |
virtual int | order () const =0 |
obtain order of the integration point list More... | |
virtual GeometryType | geometryType () const =0 |
obtain GeometryType for this integration point list More... | |
virtual std::vector< ElementCoordinateType > | interpolationPoints (const int reqDim) const |
returns list of element interpolation points for a given face quadrature | |
virtual bool | isFaceInterpolationQuadrature (const size_t numShapeFunctions) const |
return true if quadrature is also a set of interpolation points for a given number of shape functions | |
Static Public Attributes | |
static const int | dimension = dim |
dimension of quadrature | |
Protected Member Functions | |
QuadratureImp (size_t id) | |
Constructor. More... | |
void | addQuadraturePoint (const CoordinateType &point, const FieldType weight) |
Adds a point-weight pair to the quadrature. More... | |
void | setIntegrationPoints (std::vector< CoordinateType > &&points) |
Overwrites integration point list | |
Detailed Description
class Dune::Fem::QuadratureImp< FieldImp, dim >
Generic implementation of a Dune quadrature.
A Dune Quadrature is nothing but a list of integration points (see also IntegrationPointsListImp) and their respective weights.
- Note
- Quadratures do not change over time. It can safely be assumed that they always return the same points in the same order.
Constructor & Destructor Documentation
◆ QuadratureImp()
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inlineexplicitprotected |
Constructor.
The constructor simply creates an empty quadrature and stores the specified identifier.
- Note
- The constructors of derived classes should fill the quadrature via addQuadraturePoint
- The identifier of an integration point list must be globally unique. Even integration point lists for different dimensions must have different identifiers.
- Parameters
-
[in] id unique identifier of the quadrature (provided by QuadratureProvider)
Member Function Documentation
◆ addQuadraturePoint()
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inlineprotected |
Adds a point-weight pair to the quadrature.
This method allows derived classes to add quadrature points (and their respective weights) to the list. This mehtod should only be used within the constructor of the derived class.
References Dune::Fem::IntegrationPointListImp< FieldImp, dim >::point(), and Dune::Fem::QuadratureImp< FieldImp, dim >::weight().
Referenced by Dune::Fem::QuadratureRulesFactory< FieldImp, dim >::QuadratureRulesFactory().
◆ geometryType()
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pure virtualinherited |
obtain GeometryType for this integration point list
Integration point lists are specified in local coordinates, i.e., coordinates with respect to the reference element. Hence, each integration point list is only valid for one type of geometry, i.e., for one reference element. The type can be retrieved via this method.
- Returns
- GeometryType for this integration point list
Implemented in Dune::Fem::QuadratureRulesFactory< FieldImp, dim >, Dune::Fem::LumpingQuadrature< FieldImp, geometryId >, and Dune::Fem::LagrangePointListInterface< FieldImp, dim, maxPolOrder >.
Referenced by Dune::Fem::TwistMapperCreator< ct, dim >::TwistMapperCreator().
◆ id()
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inlineinherited |
obtain the identifier of the integration point list
The identifier of an integration point list must be globally unique. Even integration point lists for different dimensions must have different identifiers.
- Note
- Quadratures are considered distinct if they differ in one of the following points: geometry type, order, dimension or implementation.
- Returns
- globally unique identifier of the integration point list
Referenced by Dune::Fem::TwistProvider< ct, dim >::getTwistStorage().
◆ nop()
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inlineinherited |
obtain the number of integration points
- Returns
- number of integration points within this list
Referenced by Dune::Fem::IntegrationPointListImp< FieldImp, dim >::point().
◆ order()
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pure virtualinherited |
obtain order of the integration point list
The order of a quadrature is the maximal polynomial degree that is guaranteed to be integrated exactly by the quadrature.
In case of an integration point list, the definition of this value is left to the implementor.
- Returns
- the order of the integration point list
Implemented in Dune::Fem::QuadratureRulesFactory< FieldImp, dim >, Dune::Fem::LumpingQuadrature< FieldImp, geometryId >, and Dune::Fem::LagrangePointListInterface< FieldImp, dim, maxPolOrder >.
◆ point()
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inlineinherited |
obtain coordinates of i-th integration point
This method returns a reference to the coordinates of the i-th integration point for 0 <= i < nop(). The integration point is given in local coordinates, i.e., coordinates with respect to the reference element.
- Parameters
-
[in] i number of the integration point, 0 <= i < nop()
- Returns
- reference to i-th integration point
References Dune::Fem::IntegrationPointListImp< FieldImp, dim >::nop().
Referenced by Dune::Fem::IntegrationPointListImp< FieldImp, dim >::addIntegrationPoint(), and Dune::Fem::QuadratureImp< FieldImp, dim >::addQuadraturePoint().
◆ weight()
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inline |
obtain weight of i-th integration point
This method returns the weight of the i-th integration point for 0 <= i < nop() within the quadrature.
- Note
- The integration point can be obtained via the point() method.
- The quadrature weights sum up to the volume of the reference element.
- Parameters
-
[in] i number of the integration point, 0 <= i < nop()
- Returns
- weight of the i-th integration point
Referenced by Dune::Fem::QuadratureImp< FieldImp, dim >::addQuadraturePoint().
The documentation for this class was generated from the following file:
- dune/fem/quadrature/quadratureimp.hh