pyvista画一个长方体

Sure, I can help you with that! Here's some sample code to create a rectangular prism using PyVista:

import pyvista as pv

# Define points of the rectangular prism
points = [
    [0, 0, 0],
    [1, 0, 0],
    [1, 1, 0],
    [0, 1, 0],
    [0, 0, 1],
    [1, 0, 1],
    [1, 1, 1],
    [0, 1, 1]
]

# Define the six faces of the rectangular prism
faces = [
    [0, 1, 2, 3],
    [4, 5, 6, 7],
    [0, 1, 5, 4],
    [1, 2, 6, 5],
    [2, 3, 7, 6],
    [3, 0, 4, 7]
]

# Create an empty PolyData object
rectangular_prism = pv.PolyData()

# Set the points and faces
rectangular_prism.points = points
rectangular_prism.faces = faces

# Plot the rectangular prism
pv.plot([rectangular_prism])

I hope this helps! Let me know if you have any more questions.