绘制海岸线国界州界及填充海陆

1. 海岸线 Basemap.drawcoaslines()

2. 国界线 Basemap.drawcountries()

特别要注意国界线有无争议，此处主要说明basemap画国界线的用法，实际国界线以我们国家（中国）制作的地图为准！

; d9 z& r" I/ R1 ~) g8 g/ Y1 N* u8 y( P; ~2 a

3. 州界线 Basemap.drawstates()，主要针对美洲

import numpy as np import matplotlib.pyplot as plt from mpl_toolkits.basemap import Basemap * P$ M9 q U3 P6 `! I% b0 C, e$ f 8 ?6 o; }+ m, I% X* o$ l% l! n5 S) a map = Basemap() 9 p' `% B5 P( Q" `* G map.drawcoastlines(color=r, linewidth=.5) map.drawcountries(color=g, linewidth=.25) map.drawstates(color=b, linewidth=.2) ( {1 }9 \$ y. e; p6 @% a. ] map.drawparallels(circles=np.linspace(-90, 90, 7), labels=[1, 0, 0, 0], color=gray) map.drawmeridians(meridians=np.linspace(-180, 180, 13), labels=[0, 0, 0, 1], color=gray) 5 t2 K2 d/ ?, J G$ q; H/ m plt.show()

4. 用不同颜色填充海洋和陆地

" o$ ^9 S; r/ ]7 Z' V5 V. B

4.1 海洋 Basemap.drawmapboundary(fill_color=#87CEEB)

7 z. T, ~8 ]' {$ G3 e/ _

此处海洋颜色的天蓝色

% w8 x I; N4 C+ |3 q+ B) ?

#87CEEB

4.2 陆地及湖泊 Basemap.fillcontinents(color=#808000, lake_color=#87CEEB)

3 ^% u, U. t+ h& X

陆地为橄榄色

5 Z1 K9 V6 Z+ l, E8 J: T; E9 p

#808000

y. z6 D3 `8 a: |1 z

湖泊为天蓝色

?2 j5 Q* d0 N! _' X& g

#87CEEB

import numpy as np import matplotlib.pyplot as plt from mpl_toolkits.basemap import Basemap $ y) \; t4 S$ J" |0 T6 v R map = Basemap() map.drawcoastlines(color=r, linewidth=.5) map.drawcountries(color=g, linewidth=.25) map.drawstates(color=b, linewidth=.2) map.drawparallels(circles=np.linspace(-90, 90, 7), 5 D/ L+ X! t. k labels=[1, 0, 0, 0], color=gray) map.drawmeridians(meridians=np.linspace(-180, 180, 13), * o& {; }% A0 H+ _8 \' G1 a5 W- [ labels=[0, 0, 0, 1], color=gray) map.fillcontinents(color=#808000, lake_color=#87CEEB) map.drawmapboundary(fill_color=#87CEEB) plt.show()

0 V( K n5 \; y. p, Q1 L

S" U; P4 r6 ]7 u5 h