matplotlib polygons quickview

matplotlib_poly.py

import numpy as np
from matplotlib import pyplot as plt
from matplotlib.patches import Polygon



def main():
    a = np.arange(8).reshape(4, 2)
    a[0][0] = 0.0
    a[0][1] = 0.0
    a[1][0] = 2.0
    a[1][1] = 0.0
    a[2][0] = 3.0
    a[2][1] = 4.0
    a[3][0] = 2.0
    a[3][1] = 11.0

    show(a)


def show(re):
    fig, ax = plt.subplots()

    polygon = Polygon(re, ec="k")
    ax.add_patch(polygon)
    # fig.colorbar(p, ax=ax)

    ax.margins(0.1)
    ax.relim()
    ax.autoscale_view()
    plt.show()

if __name__ == '__main__':
    main()