Notebook

これは日々の作業を通して学んだことや毎日の生活で気づいたことをを記録しておく備忘録である。

HTML ファイル生成日時: 2025/07/30 08:17:51.269 (台灣標準時)

geopandas を使って地図を描く方法 その2

geopandas で地図を描く方法には、 こんな書き方もできるようでござる。 pyplot を使わずに済むでござる。


#!/usr/pkg/bin/python3.13

#
# Time-stamp: <2025/02/02 20:04:55 (UT+8) daisuke>
#

# importing matplotlib
import matplotlib.backends.backend_agg
import matplotlib.figure

# importing geopandas
import geopandas

# importing geodatasets
import geodatasets

# output file name
file_output = 'world_map_3.png'

# making fig object
fig = matplotlib.figure.Figure ()

# making ax object
ax = fig.add_subplot (111)

# importing world map
world = geopandas.read_file (geodatasets.get_path ("naturalearth.land"))

# plotting world map
world.plot (ax=ax)
ax.set_xlabel ('Longitude [deg]')
ax.set_ylabel ('Latitude [deg]')
ax.set_xlim (-180, +180)
ax.set_ylim (-90, +90)
ax.set_xticks (range (-180, +181, 30))
ax.set_yticks (range (-90, +91, 30))
ax.grid ()

# saving file
fig.savefig (file_output, dpi=225)

作られる図は以下の通りでござる。

fig_202502/world_map_3.png


Frequently accessed files

  1. Misc___Taiwan/20240819_00.html
  2. Computer___TeX/20231107_00.html
  3. Computer___NetBSD/20250301_01.html
  4. Computer___NetBSD/20250728_00.html
  5. Misc___Taiwan/20240207_00.html
  6. Computer___Hardware/20250319_00.html
  7. Misc___Taiwan/20220831_4.html
  8. Computer___TeX/20240410_00.html
  9. Computer___Network/20230516_00.html
  10. Food___Taiwan/20230608_04.html
  11. Misc___Taiwan/20250728_01.html
  12. Computer___NetBSD/20240805_03.html
  13. Food___Taiwan/20220605_4.html
  14. Food___Taiwan/20230609_06.html
  15. Computer___NetBSD/20250409_00.html
  16. Computer___Python/20240101_00.html
  17. Food___Taiwan/20220811_9.html
  18. Computer___NetBSD/20230119_00.html
  19. Food___Taiwan/20230604_00.html
  20. Food___Cooking/20230625_03.html
  21. Travel___Taiwan/20230525_09.html
  22. Computer___FreeBSD/20240123_00.html
  23. Food___Cooking/20220821_5.html
  24. Food___Taiwan/20210216_1.html
  25. Food___Taiwan/20230622_10.html
  26. Misc___Taiwan/20240903_01.html
  27. Computer___TeX/20230726_01.html
  28. Computer___NetBSD/20241102_00.html
  29. Computer___NetBSD/20220729_0.html
  30. Food___Taiwan/20230725_24.html


HTML file generated by Kinoshita Daisuke.