Source code for pyinterp.interpolator.trivariate

# Copyright (c) 2022 CNES
# All rights reserved. Use of this source code is governed by a
# BSD-style license that can be found in the LICENSE file.
Trivariate interpolation
import numpy as np
from .. import core
from .. import grid
from .. import interface

[docs]def trivariate(grid3d: grid.Grid3D, x: np.ndarray, y: np.ndarray, z: np.ndarray, interpolator: str = "bilinear", z_method: str = "linear", bounds_error: bool = False, num_threads: int = 0, **kwargs) -> np.ndarray: """Interpolate the values provided on the defined trivariate function. Args: grid3d (pyinterp.grid.Grid3D): Function on a uniform 3-dimensional grid to be interpolated. x (numpy.ndarray): X-values. y (numpy.ndarray): Y-values. z (numpy.ndarray): Z-values. interpolator (str, optional): The interpolation method to be performed on the surface defined by the Y and Y axes. Supported are ``bilinear`` and ``nearest``, and ``inverse_distance_weighting``. Default to ``bilinear``. z_method (str, optional): The interpolation method to be performed on the Z axis. Supported are ``linear``and ``nearest``. Default to ``linear``. bounds_error (bool, optional): If True, when interpolated values are requested outside of the domain of the input axes (x,y), a :py:class:`ValueError` is raised. If False, then the value is set to NaN. Default to ``False``. num_threads (int, optional): The number of threads to use for the computation. If 0 all CPUs are used. If 1 is given, no parallel computing code is used at all, which is useful for debugging. Defaults to ``0``. p (int, optional): The power to be used by the interpolator inverse_distance_weighting. Default to ``2``. Returns: numpy.ndarray: Values interpolated. """ instance = grid3d._instance function = interface._core_function("trivariate", instance) return getattr(core, function)(instance, np.asarray(x), np.asarray(y), np.asarray(z), grid._core_variate_interpolator( grid3d, interpolator, **kwargs), z_method=z_method, bounds_error=bounds_error, num_threads=num_threads)