Python中的 Matplotlib.axes.Axes.locator_params()
Matplotlib是Python中的一个库,它是 NumPy 库的数值数学扩展。 Axes 类包含大部分图形元素:Axis、Tick、Line2D、Text、Polygon 等,并设置坐标系。 Axes 的实例通过回调属性支持回调。
matplotlib.axes.Axes.locator_params()函数
matplotlib 库的 axes 模块中的Axes.locator_params()函数用于控制主要刻度定位器的行为。
Syntax: Axes.locator_params(self, axis=’both’, tight=None, **kwargs)
Parameters: This method accepts the following parameters.
- axis : This parameter is the axis on which to operate
.
- tight : This parameter is passed to autoscale_view. Default is None, for no change.
Return value: This method does not returns any value.
下面的示例说明了 matplotlib.axes 中的matplotlib.axes.Axes.locator_params()
函数:
示例 1:
# Implementation of matplotlib function
import matplotlib.pyplot as plt
import matplotlib.colors as mcolors
import matplotlib.gridspec as gridspec
import numpy as np
plt.rcParams['savefig.facecolor'] = "0.8"
plt.rcParams['figure.figsize'] = 6, 5
fig, ax = plt.subplots()
ax.plot([1, 2])
ax.locator_params("x", nbins = 3)
ax.locator_params("y", nbins = 5)
ax.set_xlabel('x-label')
ax.set_ylabel('y-label')
fig.suptitle('matplotlib.axes.Axes.locator_params() \
function Example\n\n', fontweight ="bold")
plt.show()
输出:
示例 2:
# Implementation of matplotlib function
import matplotlib.pyplot as plt
import matplotlib.colors as mcolors
import matplotlib.gridspec as gridspec
import numpy as np
arr = np.arange(100).reshape((10, 10))
norm = mcolors.Normalize(vmin = 0., vmax = 100.)
pc_kwargs = {'rasterized': True, 'cmap': 'viridis',
'norm': norm}
fig, (ax, ax1) = plt.subplots(1, 2)
im = ax.pcolormesh(arr, **pc_kwargs)
fig.colorbar(im, ax = ax, shrink = 0.6)
im1 = ax1.pcolormesh(arr, **pc_kwargs)
ax1.locator_params(nbins = 3)
fig.colorbar(im1, ax = ax1, shrink = 0.6)
ax.set_title("Without locator_params()")
ax1.set_title("With locator_params()")
fig.suptitle('matplotlib.axes.Axes.locator_params() \
function Example\n\n', fontweight ="bold")
plt.show()
输出: