How to draw polygons in python (giving cordenates) and number its edges?-CodePudding

I have a list of agroforestry plots (polygons) in python. Every polygon es represented as latitude/longitude.

polygon = [
    (12.132481, -86.239511),
    (12.132093,-86.239344 ),
    (12.132287, -86.23876),
    (12.132481, -86.239511)
]

I need a way to draw those polygons as an image and place numbers on its edges. A polygon need to also be represented with a letter. This is an example of what I need

How can I do it in python?

CodePudding user response：

There are several libraries in Python that allow you to draw polyggon shapes and annotate them. Here's an example using the Matplotlib library:

import matplotlib.pyplot as plt

polygon = [
    (12.132481, -86.239511),
    (12.132093,-86.239344 ),
    (12.132287, -86.23876),
    (12.132481, -86.239511)
]

x = [p[0] for p in polygon]
y = [p[1] for p in polygon]

fig, ax = plt.subplots()
ax.plot(x, y)

for i, p in enumerate(polygon):
    ax.annotate(f"{i 1}", (p[0], p[1]))

plt.show()

This code will display the polygon as a series of connected line segments and annotate each vertex with its edge number. To represent the polygon with a letter, simply replace the f"{i 1}" with the desired letter in the ax.annotate function.

CodePudding user response：

Borrowing from the previous answer, but adding the label not just at the edges, but also inside the polygon, you can use shapely's