Python中的 Matplotlib.artist.Artist.set_rasterized()
Matplotlib是Python中的一个库,它是 NumPy 库的数值数学扩展。 Artist 类包含呈现为 FigureCanvas 的对象的 Abstract 基类。图中所有可见元素都是 Artist 的子类。
matplotlib.artist.Artist.set_rasterized() 方法
matplotlib 库的艺术家模块中的set_rasterized() 方法用于强制在矢量后端输出中进行光栅化(位图)绘图。
Syntax: Artist.set_rasterized(self, rasterized)
Parameters: This method accepts the following parameters.
- rasterized: This parameter is the boolean value.
Returns: This method does not return any value.
下面的示例说明了 matplotlib 中的 matplotlib.artist.Artist.set_rasterized()函数:
示例 1:
# Implementation of matplotlib function
from matplotlib.artist import Artist
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)
Artist.set_rasterized(m, True)
fig.suptitle('matplotlib.artist.Artist.set_rasterized()\
function Example', fontweight ="bold")
plt.show()
输出:
示例 2:
# Implementation of matplotlib function
from matplotlib.artist import Artist
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 = {'cmap': 'plasma', 'norm': norm}
fig, ax = plt.subplots( )
im = ax.pcolormesh(arr, **pc_kwargs)
fig.colorbar(im, ax = ax, shrink = 0.6)
Artist.set_rasterized(im, False)
fig.suptitle('matplotlib.artist.Artist.set_rasterized()\
function Example', fontweight ="bold")
plt.show()
输出: