问题
I am having serious difficulties in setting to False
the xlabels_top
and ylabels_right
from my Geopandas plot.
This geopandas plot is made inside a Geoaxes
subplot created with PlateCarree
projection from Cartopy library.
My geopandas Geodataframe
is in SIRGAS 2000 (units: degrees), EPSG: 4989.
Therefore I created a Geodetic Globe object from the cartopy library.
Here is a code snippet:
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
import geopandas as gpd
Geopandas_DF = gpd.read_file('my_file.shp')
# setting projection and Transform
Projection=ccrs.PlateCarree()
Transform = ccrs.Geodetic(globe=ccrs.Globe(ellipse='GRS80'))
Fig, Ax = plt.subplots(1,1, subplot_kw={'projection': Projection})
Geopandas_DF.plot(ax=Ax, transform=Ax.transData)
Ax.gridlines(crs=Projection , draw_labels=True, linewidth=0.5,
alpha=0.4, color='k', linestyle='--')
Ax.xlabels_top = False nn# It should turn off the upper x ticks
Ax.ylabels_right = False # It should turn off the right y ticks
Ax.ylabels_left = True
Ax.xlines = True
Fig.show()
Here is a figure example. One can notice that the xticks from the upper axis and the yticks from the right axis have not been turned OFF (False
).
Therefore, I would like to know whether that is a problem between Cartopy and Geopandas, or am I doing something wrong in my code.
回答1:
The labels belong to the gridliner instance not the axes, you can turn them off there by storing the gridliner returned by the gridlines method and setting top_labels
, right_labels
as in:
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
import geopandas as gpd
Geopandas_DF = gpd.read_file('my_file.shp')
# setting projection and Transform
Projection=ccrs.PlateCarree()
Transform = ccrs.Geodetic(globe=ccrs.Globe(ellipse='GRS80'))
Fig, Ax = plt.subplots(1,1, subplot_kw={'projection': Projection})
Geopandas_DF.plot(ax=Ax, transform=Ax.transData)
gl = Ax.gridlines(crs=Projection , draw_labels=True, linewidth=0.5,
alpha=0.4, color='k', linestyle='--')
# For Cartopy <= 0.17
gl.xlabels_top = False
gl.ylabels_right = False
# For Cartopy >= 0.18
# gl.top_labels = False
# gl.right_labels = False
Fig.show()
回答2:
I finally managed to solve my problem. I used Ajdawson tips in order to do so. Here is the code with the solution:
import matplotlib.pyplot as plt
import cartopy.crs as ccrs
import geopandas as gpd
Geopandas_DF = gpd.read_file('my_file.shp')
# setting projection and Transform
Projection=ccrs.PlateCarree()
Transform = ccrs.Geodetic(globe=ccrs.Globe(ellipse='GRS80'))
Fig, Ax = plt.subplots(1,1, subplot_kw={'projection': Projection})
Geopandas_DF.plot(ax=Ax, transform=Ax.transData)
gl = Ax.gridlines(crs=Projection , draw_labels=True, linewidth=0.5,
alpha=0.4, color='k', linestyle='--')
gl.top_labels = False
gl.right_labels = False
gl.xlabels_top = False
gl.ylabels_right = False
Fig.show()
来源:https://stackoverflow.com/questions/54580278/why-cant-one-set-to-false-specific-axis-ticklabels-ex-xlabels-top-ylabels