Matplotlib 多个颜色条

发布于 2025-01-09 09:08:37 字数 630 浏览 0 评论 0原文

我需要四个不同的颜色条来绘制单个图。我的图由 5 个子图组成，但只有第一个子图需要四个不同的颜色条形图。我想将它们放置在图表下方。我实现了它，但我的颜色条大小不同：

供您参考，我的图使用 matplotlib subplot2grid 方法分成 5 个图。一个最小的工作示例（没有 subplot2grid）如下所示：

import matplotlib.pyplot as plt
import numpy as np

frame = np.zeros([512, 512])

fig = plt.figure(figsize=(16, 8))
ax = plt.imshow(frame)

for i in range(4):
    plt.colorbar(fraction=0.046, pad=0.04, location="bottom")

plt.show()

如何将颜色条形图放置在图下方，并且它们彼此相邻且长度相同（例如与第一个条形图的长度或图像大小相同）？

原文

I need four different color bars for a single plot. My plot consists of 5 subplots, but only the first one requires four different color bar plots. I would like to position them below a graph. I achieved it, but my color bars are of different sizes:

For your reference, my figure is split into 5 figures using the matplotlib subplot2grid method. A minimal working example (without subplot2grid) is shown below:

import matplotlib.pyplot as plt
import numpy as np

frame = np.zeros([512, 512])

fig = plt.figure(figsize=(16, 8))
ax = plt.imshow(frame)

for i in range(4):
    plt.colorbar(fraction=0.046, pad=0.04, location="bottom")

plt.show()

How do I position the color bar plots below the plot and them next to each other and of the same length (e.g. the same length as the first bar plot, or image size)?

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