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()

7 ?& v) v9 W& E' D! @7 w% O. q3 y

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！

3. 州界线 Basemap.drawstates()，主要针对美洲

$ \% a% v6 p% {8 }. {

import numpy as np + I) H; n# y* _: K b! C import matplotlib.pyplot as plt & k8 _# W( V0 f3 D! H( G from mpl_toolkits.basemap import Basemap 6 l5 R# K, s S7 K3 I map = Basemap() E4 v4 M6 n/ ^7 d map.drawcoastlines(color=r, linewidth=.5) : L% ^, D o& F! L map.drawcountries(color=g, linewidth=.25) 7 M1 ?# }( A' h map.drawstates(color=b, linewidth=.2) y1 r+ d) r5 _0 l4 M+ e+ M map.drawparallels(circles=np.linspace(-90, 90, 7), labels=[1, 0, 0, 0], color=gray) * F) s7 |& w6 B4 N map.drawmeridians(meridians=np.linspace(-180, 180, 13), labels=[0, 0, 0, 1], color=gray) 0 e9 {# f; T% {( w( K1 L/ ?. [9 A plt.show()

, v7 F6 r0 a# z D

4. 用不同颜色填充海洋和陆地

& L8 K* ?/ D* f) U: \7 Q7 A

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

9 J+ D8 P8 R2 n% e

此处海洋颜色的天蓝色

# P2 T0 B" p- O" ]

#87CEEB

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

陆地为橄榄色

#808000

# h* ^+ Y5 W6 Z2 e; G

湖泊为天蓝色

5 [* g5 @' m: }8 B! V" }

#87CEEB

import numpy as np import matplotlib.pyplot as plt - _: K$ |; ]; F, {: P from mpl_toolkits.basemap import Basemap e% q1 j2 G6 Y1 @: [5 y$ y3 r- z E+ W1 m5 c# _! A1 k map = Basemap() 9 `: ~$ G$ {5 W0 F/ i) a map.drawcoastlines(color=r, linewidth=.5) map.drawcountries(color=g, linewidth=.25) ) U" h4 G* j' P* Y4 O8 i( H map.drawstates(color=b, linewidth=.2) map.drawparallels(circles=np.linspace(-90, 90, 7), labels=[1, 0, 0, 0], color=gray) ' j" L x, ~; Y map.drawmeridians(meridians=np.linspace(-180, 180, 13), labels=[0, 0, 0, 1], color=gray) 4 F! R4 ~9 N% Z! j A( W! n* X map.fillcontinents(color=#808000, lake_color=#87CEEB) 6 P2 I; o& x% }6 Q map.drawmapboundary(fill_color=#87CEEB) 0 L# c% F: e, n9 t- E/ ?2 S plt.show()

% ~3 {2 U; ^2 k# o

) k. `. k# w3 L( ?) p$ q5 ]% P& } & H4 y( `7 Q3 S; ] ! y- D8 S0 E, n$ |: a7 T