地理数据框地图图似乎忽略了legend_kwds
我正在尝试使用地理数据框编辑地图图例的图例参数。我的问题是legend_kwds似乎被忽略了。
提前感谢您的时间！
图形代码为：
fig, ax = plt.subplots(1, 1)
Q= Valores.plot(column=Columna_Criterio, ax=ax, cmap = 'viridis', linewidth=0, legend=True, legend_kwds={'fontsize':'xx-small','label': "Population by Country", 'orientation': "horizontal"})
ax.axis('off')
结果是此图：
The cmap and linewidth parameters are modifying the graph, while the legend_kwds are not +
如果我删除legend_kwds参数：
fig, ax = plt.subplots(1, 1)
Q= Valores.plot(column=Columna_Criterio, ax=ax, cmap = 'viridis', linewidth=0, legend=True)
ax.axis('off')
结果完全相同。... Is the same...
你知道怎么了吗？
更新2
在将geopandas成功更新为0.6.1后...我仍然遇到同样的问题...图形不会随着legend_kwds参数而改变。
我使用了@swatchai代码建议，并且能够修改标签字母大小，但不能修改条形位置。
再次感谢您抽出宝贵的时间！
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1 个答案:
答案 0 :(得分：0)
您需要将geopandas升级到v 0.6。然后尝试运行此修改后的代码：
import matplotlib.pyplot as plt
import geopandas
import matplotlib
# set font size here
matplotlib.rcParams['font.size'] = 7
fig, ax = plt.subplots(1, 1, figsize=[9,6])
# --- more lines of code here ---
Q = Valores.plot(column=Columna_Criterio, ax=ax, cmap = 'viridis', \
linewidth=0, legend=True, \
legend_kwds={'label': "Population by Country", 'orientation': "horizontal"})
ax.axis('off')
修改
这是使用世界数据的可运行代码。
import matplotlib.pyplot as plt
import geopandas
import matplotlib
# set font size
matplotlib.rcParams['font.size'] = 7
# make use of the provided world dataset
world = geopandas.read_file(geopandas.datasets.get_path('naturalearth_lowres'))
# drop some rows
world = world[(world.name != "Antarctica") & (world.name != "Fr. S. Antarctic Lands")]
fig, ax = plt.subplots(1, 1, figsize=[9,6])
myplot = world.plot(column='pop_est',
ax=ax, legend=True,
legend_kwds={'label': "Population by Country",
'orientation': "horizontal"})
输出图：
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