Matplotlib.axes.Axes.set_rasterization_zorder() in Python

Matplotlib is a library in Python and it is numerical – mathematical extension for NumPy library. The Axes Class contains most of the figure elements: Axis, Tick, Line2D, Text, Polygon, etc., and sets the coordinate system. And the instances of Axes supports callbacks through a callbacks attribute.

matplotlib.axes.Axes.set_rasterization_zorder() Function

The Axes.set_rasterization_zorder() function in axes module of matplotlib library is used to return y formatted as an y-value.

Syntax: Axes.set_rasterization_zorder(self, z)

Parameters:
z : This parameter is the zorder below which artists are rasterized.

Return value: This method does not return any value.

Below examples illustrate the matplotlib.axes.Axes.set_rasterization_zorder() function in matplotlib.axes:

Example 1:

# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt

d = np.arange(100).reshape(10, 10)
xx, yy = np.meshgrid(np.arange(11), np.arange(11))

fig, ax = plt.subplots()

ax.set_aspect(1)
m = ax.pcolormesh(xx, yy, d)
m.set_zorder(-15)
ax.set_rasterization_zorder(-5)

fig.suptitle('matplotlib.axes.Axes.set_rasterization_zorder()\
 function Example', fontweight ="bold")
plt.show()

Output:

Example 2:

# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt

xx = np.random.rand(16, 30)

fig, (ax3, ax4) = plt.subplots(1, 2)

m = ax3.pcolor(xx)
m.set_zorder(-20)

ax3.set_title("No Rasterization")

m = ax4.pcolor(xx)
m.set_zorder(-20)

ax4.set_rasterization_zorder(-10)

ax4.set_title("Rasterization z$<-10$")

fig.suptitle('matplotlib.axes.Axes.set_rasterization_zorder()\
 function Example', fontweight ="bold")
plt.show()

Output: