code: """
  .. _ref_create_explicit_structured_grid:
  
  Creating an Explicit Structured Grid
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  Create an explicit structured grid from NumPy arrays.
  
  Note this feature is only available for ``vtk>=9``.
  
  """
  
  import numpy as np
  
  import pyvista as pv
  
  ni, nj, nk = 4, 5, 6
  si, sj, sk = 20, 10, 1
  
  xcorn = np.arange(0, (ni + 1) * si, si)
  xcorn = np.repeat(xcorn, 2)
  xcorn = xcorn[1:-1]
  xcorn = np.tile(xcorn, 4 * nj * nk)
  
  ycorn = np.arange(0, (nj + 1) * sj, sj)
  ycorn = np.repeat(ycorn, 2)
  ycorn = ycorn[1:-1]
  ycorn = np.tile(ycorn, (2 * ni, 2 * nk))
  ycorn = np.transpose(ycorn)
  ycorn = ycorn.flatten()
  
  zcorn = np.arange(0, (nk + 1) * sk, sk)
  zcorn = np.repeat(zcorn, 2)
  zcorn = zcorn[1:-1]
  zcorn = np.repeat(zcorn, (4 * ni * nj))
  
  corners = np.stack((xcorn, ycorn, zcorn))
  corners = corners.transpose()
  
  if pv._vtk.VTK9:
      dims = np.asarray((ni, nj, nk)) + 1
      grid = pv.ExplicitStructuredGrid(dims, corners)
      grid = grid.compute_connectivity()
      grid.plot(show_edges=True)
  
apis: numpy.tile numpy.transpose numpy.repeat numpy.asarray numpy.arange numpy.stack