How do you overlay maps in imshow in Python?

In Python, to overlay a map using imshow, you first need to load the map data and then use the imshow function from the matplotlib library to display the map.

Firstly, you can use the geopandas library to load map data, such as loading a world map data.

import geopandas as gpd

world = gpd.read_file(gpd.datasets.get_path('naturalearth_lowres'))

Next, use the matplotlib library to display map data by overlaying other images on top of it, such as raster data.

import matplotlib.pyplot as plt

# 绘制地图
world.plot()

# 加载栅格数据
data = ...

# 在地图上叠加栅格数据
plt.imshow(data, extent=[world.total_bounds[0], world.total_bounds[2], world.total_bounds[1], world.total_bounds[3]], cmap='hot', alpha=0.5)

plt.show()

This allows overlaying raster data on a map, with the ability to adjust the alpha parameter to control the transparency of the overlaid image.