openlifu.plan.solution_analysis.get_offset_grid

openlifu.plan.solution_analysis.get_offset_grid(da: DataArray, focus, origin=array([0., 0., 0.]), as_dataset=True)[source]

Transform the coords of a DataArray that is in transducer coordinates to focus coordinates

See get_focus_matrix for the meaning of “focus coordinates”

Parameters:

  • da – DataArray whose coordinates will be used (presumably the transducer coordinates)

  • focus – A 3D point describing the focus location in the coordinates of da

  • origin – A 3D point describing the “effective origin” in the coordinates of da (see Transducer.get_effective_origin for the meaning of this).

  • as_dataset – Whether to return the transformed coords as a numpy array or an xarray Dataset

Returns the transformed coordinate grid as either a numpy array or an xarray Dataset.