Problem
Problem(grid, *args, **kwargs)
Bases: stride.Problem
Problem class for NDK. It is a subclass of stride.Problem.
The problem defines a medium with a set of fields (such as Vp or density), some transducers (such as a series of scalar point transducers), a geometry where those transducers are located in space, and the acquisitions that happen given that geometry.
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
grid |
Grid
|
the grid to use for the problem. |
required |
add_material_fields(materials, masks)
Add material fields as media to the problem.
Included fields are:
- the speed of sound (in m/s)
- density (in kg/m^3)
- absorption (in dB/cm)
Parameters:
| Name | Type | Description | Default |
|---|---|---|---|
materials |
Mapping[str, Struct]
|
a mapping from material names to Structs containing the material properties. |
required |
masks |
Mapping[str, npt.NDArray[np.bool_]]
|
a mapping from material names to boolean masks indicating the gridpoints. |
required |