Closed
Description
Problem
- I'm working on the issue Support change the default location of legend in sympy plot. sympy/sympy#24429. The
Legendobject'slocproperty can only be set at initialization time. There is no public method to update thelocproperty when the object has been created. - It can now be understood as implemented as follows:
from matplotlib import pyplot as plt
from matplotlib.legend import Legend
def plot(loc: str):
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
x = [-10.0, -9.657349547286204, -9.318462608835684, -9.031177432527166, -8.691618609025815, -8.407140700722843, -8.152708015644635, -7.839130676473357, -7.499034134688037, -7.172556788526309, -6.847257574849716, -6.552316320455642, -6.230727469453974, -5.914856113060868]
y = [4.5397868702434395e-05, 6.394971420131934e-05, 8.974373333525978e-05, 0.00011960725629360318, 0.00016795968412322188, 0.000223217496066253, 0.00028787162356623547, 0.00039385623135828983, 0.0005533125089980317, 0.0007667698609716984, 0.0010612377365216156, 0.0014247739486663552, 0.001964154207369101, 0.002691782877150404]
ax.plot(x, y, label="f(x)")
if ax.legend():
ax.legend_.set_visible(True)
_loc_code = Legend.codes.get(loc, 'best') # user choose the location
ax.legend_._set_loc(_loc_code) # Using a private function, which can be very fragile.
plt.show()
plot("center")- Desired implementation
from matplotlib import pyplot as plt
from matplotlib.legend import Legend
def plot(loc: str):
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
x = [-10.0, -9.657349547286204, -9.318462608835684, -9.031177432527166, -8.691618609025815, -8.407140700722843, -8.152708015644635, -7.839130676473357, -7.499034134688037, -7.172556788526309, -6.847257574849716, -6.552316320455642, -6.230727469453974, -5.914856113060868]
y = [4.5397868702434395e-05, 6.394971420131934e-05, 8.974373333525978e-05, 0.00011960725629360318, 0.00016795968412322188, 0.000223217496066253, 0.00028787162356623547, 0.00039385623135828983, 0.0005533125089980317, 0.0007667698609716984, 0.0010612377365216156, 0.0014247739486663552, 0.001964154207369101, 0.002691782877150404]
ax.plot(x, y, label="f(x)")
if ax.legend():
ax.legend_.set_visible(True)
ax.legend_.set_loc(loc) # A public method to change the legend location is better.
plt.show()
plot("center")Proposed solution
No response