您可以将其看作是三维数组在x、y和z轴上的拆分。每个矩阵索引都将描述一个坐标,该坐标的每个点都将与其相邻点连接。因此,您可以通过定义6个平面来制作您的框:
import numpy
import mayavi.mlab
x1, y1, z1 = (0, 1, 1)
x2, y2, z2 = (1, 1, 1)
x3, y3, z3 = (0, 0, 1)
x4, y4, z4 = (1, 0, 1)
x5, y5, z5 = (0, 1, 0)
x6, y6, z6 = (1, 1, 0)
x7, y7, z7 = (0, 0, 0)
x8, y8, z8 = (1, 0, 0)
box_points = numpy.array([[x1, y1, z1], [x2, y2, z2], [x3, y3, z3],
[x4, y4, z4], [x5, y5, z5], [x6, y6, z6],
[x7, y7, z7], [x8, y8, z8]])
mayavi.mlab.points3d(box_points[:, 0], box_points[:, 1], box_points[:, 2],
mode="axes", color=(1, 0, 0))
mayavi.mlab.mesh([[x1, x2],
[x3, x4]],
[[y1, y2],
[y3, y4]],
[[z1, z2],
[z3, z4]],
color=(0, 0, 0))
mayavi.mlab.mesh([[x5, x6], [x7, x8]],
[[y5, y6], [y7, y8]],
[[z5, z6], [z7, z8]],
color=(1, 0, 0))
mayavi.mlab.mesh([[x1, x3], [x5, x7]],
[[y1, y3], [y5, y7]],
[[z1, z3], [z5, z7]],
color=(0, 0, 1))
mayavi.mlab.mesh([[x1, x2], [x5, x6]],
[[y1, y2], [y5, y6]],
[[z1, z2], [z5, z6]],
color=(1, 1, 0))
mayavi.mlab.mesh([[x2, x4], [x6, x8]],
[[y2, y4], [y6, y8]],
[[z2, z4], [z6, z8]],
color=(1, 1, 1))
mayavi.mlab.mesh([[x3, x4], [x7, x8]],
[[y3, y4], [y7, y8]],
[[z3, z4], [z7, z8]],
color=(1, 0, 1))
mayavi.mlab.show()
![在这里输入图片描述](https://istack.dev59.com/bmwXj.webp)
另外,您还可以使用两个 mayavi.mlab.mesh 调用来显示更多的面。
# Define 2 mesh objects with 3 planes connected among themselves :
#
# pt1 - pt2 - pt6 pt8 - pt6 - pt2
# - - - - - -
# pt3 - pt4 - pt8 AND pt7 pt5 - pt1
# - - - - - -
# pt7 - pt8 - pt8 pt3 - pt1 - pt1
mayavi.mlab.figure()
mayavi.mlab.mesh([[x1, x2, x6], [x3, x4, x8], [x7, x8, x8]],
[[y1, y2, y6], [y3, y4, y8], [y7, y8, y8]],
[[z1, z2, z6], [z3, z4, z8], [z7, z8, z8]],
color=(1, 0, 0)) # red
mayavi.mlab.mesh([[x8, x6, x2], [x7, x5, x1], [x3, x1, x1]],
[[y8, y6, y2], [y7, y5, y1], [y3, y1, y1]],
[[z8, z6, z2], [z7, z5, z1], [z3, z1, z1]],
color=(0, 0, 1)) # blue
mayavi.mlab.show()
通过调用 mayavi.mlab.mesh 函数:
![enter image description here](https://istack.dev59.com/el2cM.webp)
# Merge previous mesh objects in single one:
#
# pt1 - pt2 - pt6 | => pt1 - pt2 - pt6 - pt6 - pt6
# - - - | => - - - - -
# pt3 - pt4 - pt8 | => pt3 - pt4 - pt8 - pt6 - pt2
# - - - | => - - - - -
# pt7 - pt8 - pt8 - pt6 - pt2 | => pt7 - pt8 - pt8 - pt6 - pt2
# - - - | => - - - - -
# pt7 pt5 - pt1 | => pt7 - pt7 - pt7 pt5 - pt1
# - - - | => - - - - -
# pt3 - pt1 - pt1 | => pt7 - pt3 - pt3 - pt1 - pt1
mayavi.mlab.figure()
mayavi.mlab.mesh([[x1, x2, x6, x6, x6],
[x3, x4, x8, x6, x2],
[x7, x8, x8, x6, x2],
[x7, x7, x7, x5, x1],
[x7, x3, x3, x1, x1]],
[[y1, y2, y6, y6, y6],
[y3, y4, y8, y6, y2],
[y7, y8, y8, y6, y2],
[y7, y7, y7, y5, y1],
[y7, y3, y3, y1, y1]],
[[z1, z2, z6, z6, z6],
[z3, z4, z8, z6, z2],
[z7, z8, z8, z6, z2],
[z7, z7, z7, z5, z1],
[z7, z3, z3, z1, z1]])
mayavi.mlab.show()
![enter image description here](https://istack.dev59.com/qAWJt.webp)