margins does not handle bézier curves #7184
Description
2.0b4, example modified from http://matplotlib.org/users/path_tutorial.html#bezier-example
import matplotlib.pyplot as plt
from matplotlib.path import Path
import matplotlib.patches as patches
verts = [
(0., 0.), # P0
(0.2, 1.), # P1
(1., 0.8), # P2
(0.8, 0.), # P3
]
codes = [Path.MOVETO,
Path.CURVE4,
Path.CURVE4,
Path.CURVE4,
]
path = Path(verts, codes)
fig, axs = plt.subplots(2)
patch = patches.PathPatch(path, facecolor='none', lw=2)
axs[0].add_patch(patch)
xs, ys = zip(*verts)
axs[0].plot(xs, ys, 'x--', lw=2, color='black', ms=10)
patch = patches.PathPatch(path, facecolor='none', lw=2)
axs[1].add_patch(patch)
plt.show()
Note how the bottom axes have their limits set as if using the positions of the bézier control points (on the unit square), with no margins.