PointSource.h

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class PointSource

This class provides an easy mechanism for adding a point quantities (Dirac delta function) to variational problems. The associated function space must be scalar in order for the inner product with the (scalar) Dirac delta function to be well defined. For each of the constructors, Points passed to PointSource will be copied.

Note: the interface to this class will likely change.

PointSource(std::shared_ptr<const FunctionSpace> V, const Point &p, double magnitude = 1.0)

Create point source at given point of given magnitude

PointSource(std::shared_ptr<const FunctionSpace> V, const std::vector<std::pair<const Point *, double>> sources)

Create point sources at given points of given magnitudes

PointSource(std::shared_ptr<const FunctionSpace> V0, std::shared_ptr<const FunctionSpace> V1, const Point &p, double magnitude = 1.0)

Create point source at given point of given magnitude

PointSource(std::shared_ptr<const FunctionSpace> V0, std::shared_ptr<const FunctionSpace> V1, const std::vector<std::pair<const Point *, double>> sources)

Create point sources at given points of given magnitudes

void apply(GenericVector &b)

Apply (add) point source to right-hand side vector

void apply(GenericMatrix &A)

Apply (add) point source to matrix