【发布时间】:2020-04-14 19:17:39
【问题描述】:
我想使用 matplotlib 绘制一些(简单的)多边形并在上面绘制一些点。多边形没问题,但散点不显示。有什么建议可以解决/纠正这个问题吗?
# imports
import matplotlib.pyplot as plt
from matplotlib.patches import Polygon
# polygons
gg = {'municipality 1': [(1, 1), (2, 5), (3, 3), (2, 0)],
'municipality 2': [(3, 4), (4, 6), (5, 8), (6, 3)],
'municipality 3': [(2, 0), (3, 3), (3, 4), (6, 3), (4, -3)]}
# points / places
gh = {'municipality 1': (4, 2), 'municipality 2': (2, 2), 'municipality 3': (5, 5)}
# set colors
gk = {'municipality 1': 'royalblue', 'municipality 2': 'tomato', 'municipality 3': 'springgreen'}
# figure
fig, ax = plt.subplots()
for gemeente in gg.keys():
poly = Polygon(gg[gemeente], label=gemeente, facecolor=gk[gemeente], edgecolor='black', linewidth=1)
ax.add_patch(poly)
for gemeente in gh.keys():
ax.scatter(gh[gemeente][0], gh[gemeente][1], c='black', label=gemeente)
ax.legend()
plt.autoscale()
plt.show()
【问题讨论】:
标签: python matplotlib geospatial polygon