使用make_axes_locatable时,如何在matplotlib子图中删除填充物
我正在尝试使用plt.subplots
在略有非矩形数据集(X轴范围小于y轴范围)上创建一个4x2图,并使用make_axes_locatable
让配色栏不错,并齐平。我总是在两个子图列之间获得巨大的桨板/边距,我怀疑这是从配色栏中的...我尝试了许多stackoverflow问题的多件事(例如使用
,,, fig.subplots_adjust()
,Bonded_layout = true
等),但无济于事。两列之间的边距保持很大(请参见下面的IMG),并使图像不可读... 任何输入都将不胜感激! 用于复制该问题的代码:
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import cm
from mpl_toolkits.axes_grid1.axes_divider import make_axes_locatable
data = np.random.random((10, 6))
fig, axs = plt.subplots(nrows=4, ncols=2, figsize=(16, 8), sharex=True, sharey=False, constrained_layout=True)
for idx in range(4):
# plot image
im1 = axs[idx, 0].imshow(data, cmap=cm.coolwarm)
im2 = axs[idx, 1].imshow(data, cmap=cm.viridis)
# make colorbars
ax1_divider = make_axes_locatable(axs[idx, 0])
cax1 = ax1_divider.append_axes("right", size="2%", pad=0.05)
cb1 = fig.colorbar(im1, cax=cax1, orientation="vertical")
ax2_divider = make_axes_locatable(axs[idx, 1])
cax2 = ax2_divider.append_axes("right", size="2%", pad=0.05)
cb2 = fig.colorbar(im2, cax=cax2, orientation="vertical")
I'm trying to create a 4x2 plot on a slightly non-rectangular dataset (x-axis range is smaller than y-axis range) using plt.subplots
and assign colorbars using make_axes_locatable
to have the colorbars nice and flush wih the subplots. I always end up with huge paddings/margins between the two subplot columns which I suspect originate from the colorbars... I've tried multiple things from many stackoverflow questions (e.g. using fig.subplots_adjust()
, constrained_layout=True
etc.) but to no avail. The margins between the two columns stay really large (see img below) and make the image unreadable...
Any input would be much appreciated!
Code used to reproduce the issue:
import numpy as np
import matplotlib.pyplot as plt
from matplotlib import cm
from mpl_toolkits.axes_grid1.axes_divider import make_axes_locatable
data = np.random.random((10, 6))
fig, axs = plt.subplots(nrows=4, ncols=2, figsize=(16, 8), sharex=True, sharey=False, constrained_layout=True)
for idx in range(4):
# plot image
im1 = axs[idx, 0].imshow(data, cmap=cm.coolwarm)
im2 = axs[idx, 1].imshow(data, cmap=cm.viridis)
# make colorbars
ax1_divider = make_axes_locatable(axs[idx, 0])
cax1 = ax1_divider.append_axes("right", size="2%", pad=0.05)
cb1 = fig.colorbar(im1, cax=cax1, orientation="vertical")
ax2_divider = make_axes_locatable(axs[idx, 1])
cax2 = ax2_divider.append_axes("right", size="2%", pad=0.05)
cb2 = fig.colorbar(im2, cax=cax2, orientation="vertical")
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您正在绘制多个图像(默认情况下,它试图保持相等的纵横比),其中高度大于宽度。因此,图像的总高度>图像的总宽度。
因此,减少列之间的白色间距的一种方法是减少图的宽度。
尝试设置以下设置:
You are plotting multiple images (which by default it tries to keep an equal aspect ratio), in which the height is greater than the width. Therefore, total height of the images > total width of the images.
It follows that one way to reduce the white spacing between columns is to reduce the width of the figure.
Try setting this: