PointRepresentationBase

class pysit.core.mesh_representation.PointRepresentationBase(mesh, pos, approximation='gaussian', approximation_width=1, approximation_deviations=3, **kwargs)

Bases: pysit.core.mesh_representation.MeshRepresentationBase

Base class for representing a point (or delta) on a grid.

This class serves as a base class for physical objects, such as receivers and source emitters that are usually represented in the domain as volumeless points.

Notes

• np.sum(self._sampling_operator_base) does not equal 1, as the domain will not generally have a unit spaced grid. However, np.sum(self._sampling_operator_base)*prod(self.domain.deltas) will equal 1, thus preserving the integral of the delta distribution on the specified domain.

Attributes:

approximation : {‘gaussian’, ‘delta’}

Method for approximating delta distribution numerically.

approximation_width : int

Standard deviation of the Gaussian approximation.