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import matplotlib.pyplot as plt
from shapely.geometry import Point
from shapely.ops import unary_union
from shapely.plotting import plot_polygon
from figures import SIZE, BLUE, GRAY, set_limits
polygons = [Point(i, 0).buffer(0.7) for i in range(5)]
fig = plt.figure(1, figsize=SIZE, dpi=90)
# 1
ax = fig.add_subplot(121)
for ob in polygons:
plot_polygon(ob, ax=ax, add_points=False, color=GRAY)
ax.set_title('a) polygons')
set_limits(ax, -2, 6, -2, 2)
#2
ax = fig.add_subplot(122)
u = unary_union(polygons)
plot_polygon(u, ax=ax, add_points=False, color=BLUE)
ax.set_title('b) union')
set_limits(ax, -2, 6, -2, 2)
plt.show()
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