Note
Click here to download the full example code
Long chain of connections using Sankey¶
Demonstrate/test the Sankey class by producing a long chain of connections.
import matplotlib.pyplot as plt
from matplotlib.sankey import Sankey
links_per_side = 6
def side(sankey, n=1):
"""Generate a side chain."""
prior = len(sankey.diagrams)
for i in range(0, 2*n, 2):
sankey.add(flows=[1, -1], orientations=[-1, -1],
patchlabel=str(prior + i),
prior=prior + i - 1, connect=(1, 0), alpha=0.5)
sankey.add(flows=[1, -1], orientations=[1, 1],
patchlabel=str(prior + i + 1),
prior=prior + i, connect=(1, 0), alpha=0.5)
def corner(sankey):
"""Generate a corner link."""
prior = len(sankey.diagrams)
sankey.add(flows=[1, -1], orientations=[0, 1],
patchlabel=str(prior), facecolor='k',
prior=prior - 1, connect=(1, 0), alpha=0.5)
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1, xticks=[], yticks=[],
title="Why would you want to do this?\n(But you could.)")
sankey = Sankey(ax=ax, unit=None)
sankey.add(flows=[1, -1], orientations=[0, 1],
patchlabel="0", facecolor='k',
rotation=45)
side(sankey, n=links_per_side)
corner(sankey)
side(sankey, n=links_per_side)
corner(sankey)
side(sankey, n=links_per_side)
corner(sankey)
side(sankey, n=links_per_side)
sankey.finish()
# Notice:
# 1. The alignment doesn't drift significantly (if at all; with 16007
# subdiagrams there is still closure).
# 2. The first diagram is rotated 45 deg, so all other diagrams are rotated
# accordingly.
plt.show()
![Why would you want to do this? (But you could.)](../../_images/sphx_glr_sankey_links_001.png)
References¶
The use of the following functions, methods, classes and modules is shown in this example:
Out:
<function Sankey.finish at 0x7f280f7c6c10>
Keywords: matplotlib code example, codex, python plot, pyplot Gallery generated by Sphinx-Gallery