pyvista.RectilinearGrid

class RectilinearGrid(*args, **kwargs)

Dataset with variable spacing in the three coordinate directions.

Can be initialized in several ways:

• Create empty grid

• Initialize from a vtk.vtkRectilinearGrid object

• Initialize directly from the point arrays

Parameters:

uinputstr, pathlib.Path, vtk.vtkRectilinearGrid, numpy.ndarray, optional

Filename, dataset, or array to initialize the rectilinear grid from. If a filename is passed, pyvista will attempt to load it as a RectilinearGrid. If passed a vtk.vtkRectilinearGrid, it will be wrapped. If a numpy.ndarray is passed, this will be loaded as the x range.

ynumpy.ndarray, optional

Coordinates of the points in y direction. If this is passed, uinput must be a numpy.ndarray.

znumpy.ndarray, optional

Coordinates of the points in z direction. If this is passed, uinput and y must be a numpy.ndarray.

check_duplicatesbool, optional

Check for duplications in any arrays that are passed. Defaults to False. If True, an error is raised if there are any duplicate values in any of the array-valued input arguments.

deepbool, optional

Whether to deep copy a vtk.vtkRectilinearGrid object. Default is False. Keyword only.

Examples

>>> import pyvista as pv
>>> import vtk
>>> import numpy as np

Create an empty grid.

>>> grid = pv.RectilinearGrid()

Initialize from a vtk.vtkRectilinearGrid object

>>> vtkgrid = vtk.vtkRectilinearGrid()
>>> grid = pv.RectilinearGrid(vtkgrid)

Create from NumPy arrays.

>>> xrng = np.arange(-10, 10, 2)
>>> yrng = np.arange(-10, 10, 5)
>>> zrng = np.arange(-10, 10, 1)
>>> grid = pv.RectilinearGrid(xrng, yrng, zrng)
>>> grid.plot(show_edges=True)

Static Scene

Interactive Scene

Methods

RectilinearGrid.cast_to_structured_grid()

Cast this rectilinear grid to a structured grid.

Attributes

RectilinearGrid.dimensions	Return the grid's dimensions.
RectilinearGrid.meshgrid	Return a meshgrid of numpy arrays for this mesh.
RectilinearGrid.points	Return a copy of the points as an (n, 3) numpy array.
RectilinearGrid.x	Return or set the coordinates along the X-direction.
RectilinearGrid.y	Return or set the coordinates along the Y-direction.
RectilinearGrid.z	Return or set the coordinates along the Z-direction.