Pyplot: Plot a 3D figure in a 2D frame?-CodePudding

In my current project, I want to plot a 3D shape with pyplot. This is relatively straightforward:

The complication comes from the fact that I would like the figure to display in a straight 2D figure similar to this example:

That is to say, remove the 3D axes and ticks, the gridlines, and wrap everything in a flat 2D border. Is it possible to do this with Pyplot? You can find my code to generate the two figures below:

import matplotlib.pyplot as plt
import numpy as np

plt.figure()

x   = np.asarray([0,1,1.5,0.5,0])
y   = np.asarray([0,0,0.5,0.5,0])

# Plot 2D projection of cube
plt.plot(x,y,color='k')
plt.plot(x,y 1,color='k')
plt.plot([0,0],[0,1],color='k')
plt.plot([1,1],[0,1],color='k')
plt.plot([1.5,1.5],[0.5,1.5],color='k')
plt.plot([0.5,0.5],[0.5,1.5],color='k')

plt.title("2D projection of cube")
plt.axis('equal')
plt.tick_params(left=False,
                bottom=False,
                labelleft=False,
                labelbottom=False)

# Now try the same thing in 3D
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

x   = np.asarray([0,1,1,0,0])
y   = np.asarray([0,0,1,1,0])

# Plot 2D projection of cube
ax.plot3D(x,y,np.zeros(5),color='k')
ax.plot3D(x,y,np.ones(5),color='k')
ax.plot3D([0,0],[0,0],[0,1],color='k')
ax.plot3D([0,0],[1,1],[0,1],color='k')
ax.plot3D([1,1],[0,0],[0,1],color='k')
ax.plot3D([1,1],[1,1],[0,1],color='k')

plt.title("3D projection of cube")

CodePudding user response：

add these lines :

color_tuple = (1, 1, 1, 0)

# make the panes transparent
ax.xaxis.set_pane_color(color_tuple)
ax.yaxis.set_pane_color(color_tuple)
ax.zaxis.set_pane_color(color_tuple)

# make the axis lines transparent
ax.w_xaxis.line.set_color(color_tuple)
ax.w_yaxis.line.set_color(color_tuple)
ax.w_zaxis.line.set_color(color_tuple)

# make the grid lines transparent
ax.set_xticks([])
ax.set_yticks([])
ax.set_zticks([])

output:

CodePudding user response：

The following approach:

describes a cube by 8 vertices and 12 edges
the vertices start in an axis-aligned position
the vertices are rotated around some arbitrary axis; using code from