forked from 170010011/fr
52 lines
1.2 KiB
Python
52 lines
1.2 KiB
Python
|
from numpy import asarray
|
||
|
|
import pylab
|
||
|
|
from shapely.geometry import Point, LineString, Polygon
|
||
|
|
|
||
|
|
polygon = Polygon(((-1.0, -1.0), (-1.0, 1.0), (1.0, 1.0), (1.0, -1.0)))
|
||
|
|
|
||
|
|
point_r = Point(-1.5, 1.2)
|
||
|
|
point_g = Point(-1.0, 1.0)
|
||
|
|
point_b = Point(-0.5, 0.5)
|
||
|
|
|
||
|
|
line_r = LineString(((-0.5, 0.5), (0.5, 0.5)))
|
||
|
|
line_g = LineString(((1.0, -1.0), (1.8, 0.5)))
|
||
|
|
line_b = LineString(((-1.8, -1.2), (1.8, 0.5)))
|
||
|
|
|
||
|
|
def plot_point(g, o, l):
|
||
|
|
pylab.plot([g.x], [g.y], o, label=l)
|
||
|
|
|
||
|
|
def plot_line(g, o):
|
||
|
|
a = asarray(g)
|
||
|
|
pylab.plot(a[:,0], a[:,1], o)
|
||
|
|
|
||
|
|
def fill_polygon(g, o):
|
||
|
|
a = asarray(g.exterior)
|
||
|
|
pylab.fill(a[:,0], a[:,1], o, alpha=0.5)
|
||
|
|
|
||
|
|
def fill_multipolygon(g, o):
|
||
|
|
for g in g.geoms:
|
||
|
|
fill_polygon(g, o)
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
from numpy import asarray
|
||
|
|
import pylab
|
||
|
|
|
||
|
|
fig = pylab.figure(1, figsize=(4, 3), dpi=150)
|
||
|
|
#pylab.axis([-2.0, 2.0, -1.5, 1.5])
|
||
|
|
pylab.axis('tight')
|
||
|
|
|
||
|
|
a = asarray(polygon.exterior)
|
||
|
|
pylab.fill(a[:,0], a[:,1], 'c')
|
||
|
|
|
||
|
|
plot_point(point_r, 'ro', 'b')
|
||
|
|
plot_point(point_g, 'go', 'c')
|
||
|
|
plot_point(point_b, 'bo', 'd')
|
||
|
|
|
||
|
|
plot_line(line_r, 'r')
|
||
|
|
plot_line(line_g, 'g')
|
||
|
|
plot_line(line_b, 'b')
|
||
|
|
|
||
|
|
pylab.show()
|
||
|
|
|
||
|
|
|