get_receiver¶

emg3d.fields.get_receiver(grid, values, coordinates, method='cubic', extrapolate=False)[source]¶

Return values corresponding to grid at coordinates.

Works for electric fields as well as magnetic fields obtained with get_h_field(), and for model parameters.

Parameters:

grid : emg3d.meshes.TensorMesh

The model grid.

values : ndarray

Field instance, or a particular field (e.g. field.fx); Model parameters.

coordinates : tuple (x, y, z)

Coordinates (x, y, z) where to interpolate values; e.g. receiver locations.

method : str, optional

The method of interpolation to perform, ‘linear’ or ‘cubic’. Default is ‘cubic’ (forced to ‘linear’ if there are less than 3 points in any direction).

extrapolate : bool

If True, points on new_grid which are outside of grid are filled by the nearest value (if method='cubic') or by extrapolation (if method='linear'). If False, points outside are set to zero.

Default is False.

Returns:

new_values : ndarray or utils.EMArray

Values at coordinates.

If input was a field it returns an EMArray, which is a subclassed ndarray with .pha and .amp attributes.

If input was an entire Field instance, output is a tuple (fx, fy, fz).