本文整理汇总了Python中karta.vector.geometry.Polygon类的典型用法代码示例。如果您正苦于以下问题：Python Polygon类的具体用法？Python Polygon怎么用？Python Polygon使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Polygon类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_poly_contains_polar
def test_poly_contains_polar(self):
p = Polygon([(0, 80), (45, 80), (90, 80), (135, 80), (180, 80),
(225, 80), (270, 80), (315, 80)],
crs=SphericalEarth)
self.assertTrue(p.contains(Point((45, 85), crs=SphericalEarth)))
self.assertFalse(p.contains(Point((45, 75), crs=SphericalEarth)))
return示例2: setUp
def setUp(self):
self.points = [Point((1, 1), data={"species": "T. officianale"}, crs=LonLatWGS84),
Point((3, 1), data={"species": "C. tectorum"}, crs=LonLatWGS84),
Point((4, 3), data={"species": "M. alba"}, crs=LonLatWGS84),
Point((2, 2), data={"species": "V. cracca"}, crs=LonLatWGS84)]
self.multipoint = Multipoint([(1,1), (3,1), (4,3), (2,2)],
data={"species": ["T. officianale", "C. tectorum",
"M. alba", "V. cracca"]},
crs=LonLatWGS84)
self.line = Line([(1.0,5.0),(5.0,5.0),(5.0,1.0),(3.0,3.0),(1.0,1.0)],
properties={"geom_id": 27, "name": "test line"},
crs=LonLatWGS84)
self.polygon = Polygon([(1.0,5.0),(5.0,5.0),(5.0,1.0),(3.0,3.0),(1.0,1.0)],
crs=LonLatWGS84)
self.points3 = [Point((1, 1, 0), crs=LonLatWGS84),
Point((3, 1, 3), crs=LonLatWGS84),
Point((4, 3, 2), crs=LonLatWGS84),
Point((2, 2, -1), crs=LonLatWGS84)]
self.line3 = Line([(1,5,2),(5,5,-1),(5,1,3),(3,3,1),(1,1,0)], crs=LonLatWGS84)
self.polygon3 = Polygon([(1,5,2),(5,5,-1),(5,1,3),(3,3,1),(1,1,0)], crs=LonLatWGS84)
testfiles = ["points.shp", "line.shp", "polygon.shp"]
if any(not exists(join(TMPDATA, "shapefiles/", fnm)) for fnm in testfiles):
self.saveTestData()
return示例3: setUp
def setUp(self):
self.point = Point((1.0, 2.0, 3.0),
properties={"type": "apple", "color": (43,67,10)})
self.vertices = [(2.0, 9.0, 9.0), (4.0, 1.0, 9.0), (4.0, 1.0, 5.0),
(2.0, 8.0, 0.0), (9.0, 8.0, 4.0), (1.0, 4.0, 6.0),
(7.0, 3.0, 4.0), (2.0, 5.0, 3.0), (1.0, 6.0, 6.0),
(8.0, 1.0, 0.0), (5.0, 5.0, 1.0), (4.0, 5.0, 7.0),
(3.0, 3.0, 5.0), (9.0, 0.0, 9.0), (6.0, 3.0, 8.0),
(4.0, 5.0, 7.0), (9.0, 9.0, 4.0), (1.0, 4.0, 7.0),
(1.0, 7.0, 8.0), (9.0, 1.0, 6.0)]
self.data = [99.0, 2.0, 60.0, 75.0, 71.0, 34.0, 1.0, 49.0, 4.0, 36.0,
47.0, 58.0, 65.0, 72.0, 4.0, 27.0, 52.0, 37.0, 95.0, 17.0]
self.mp = Multipoint(self.vertices, data=self.data)
self.line = Line(self.vertices)
self.poly = Polygon([(0.0, 8.0), (0.0, 5.0), (6.0, 1.0)])
self.poly3 = Polygon([(0.0, 8.0, 0.5), (0.0, 5.0, 0.8), (6.0, 1.0, 0.6)])
self.ring = Polygon([(2.0, 2.0), (4.0, 2.0), (3.0, 6.0)])
self.ringed_poly = Polygon([(0.0, 0.0), (10, 0.0),
(10.0, 10.0), (0.0, 10.0)],
subs=[self.ring])
self.unitsquare = Polygon([(0.0,0.0), (1.0,0.0), (1.0,1.0), (0.0,1.0)])
return示例4: test_poly_extent_foreign_crs
def test_poly_extent_foreign_crs(self):
poly = Polygon([(0.0, 8.0), (0.0, 5.0), (6.0, 1.0)], crs=LonLatWGS84)
poly3 = Polygon([(0.0, 8.0, 0.5), (0.0, 5.0, 0.8), (6.0, 1.0, 0.6)], crs=LonLatWGS84)
x, y = zip(*poly.get_vertices(crs=NSIDCNorth))
self.assertEqual(poly.get_extent(NSIDCNorth), (min(x), max(x), min(y), max(y)))
self.assertEqual(poly3.get_extent(NSIDCNorth), (min(x), max(x), min(y), max(y)))
return示例5: test_poly_contains3
def test_poly_contains3(self):
# test some hard cases
diamond = Polygon([(0,0), (1,1), (2,0), (1, -1)])
self.assertFalse(diamond.contains(Point((2, 1))))
self.assertTrue(diamond.contains(Point((1, 0))))
self.assertFalse(diamond.contains(Point((2.5, 0))))
self.assertFalse(diamond.contains(Point((2, -1))))
return示例6: test_polygon_write
def test_polygon_write(self):
p = Polygon([[100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
[100.0, 1.0]], crs=LonLatWGS84)
s = p.as_geojson(urn="urn:ogc:def:crs:EPSG::5806")
ans = """{ "properties": {}, "bbox": [100.0, 0.0, 101.0, 1.0], "geometry": { "type": "Polygon", "coordinates": [ [ [ 100.0, 0.0 ], [ 101.0, 0.0 ], [ 101.0, 1.0 ], [ 100.0, 1.0 ], [ 100.0, 0.0 ] ] ] }, "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:EPSG::5806" } }, "type": "Feature" }"""
self.verifyJSON(s, ans)
return示例7: test_poly_rotate
def test_poly_rotate(self):
poly = Polygon([(0.0, 0.0), (1.0, 0.0), (1.0, 1.0), (0.0, 1.0)])
rot45 = poly.rotate(45, (0.5, 0.5))
self.assertTrue(np.allclose(rot45.coords(),
np.array([[ 0.5, 1.20710678, 0.5, -0.20710678],
[-0.20710678, 0.5, 1.20710678, 0.5 ]])))
rot90 = poly.rotate(90, (0.0, 0.0))
self.assertTrue(np.allclose(rot90.coords(),
np.array([[0.0, 0.0, -1.0, -1.0],
[0.0, 1.0, 1.0, 0.0]])))
return示例8: test_poly_contains4
def test_poly_contains4(self):
# hippie star
theta = np.linspace(0, 2*np.pi, 361)[:-1]
r = 10*np.sin(theta*8) + 15
x = np.cos(theta) * r + 25
y = np.sin(theta) * r + 25
polygon = Polygon(zip(x, y))
# causes naive cross-product methods to fail
pt = Point((28.75, 25.625))
self.assertTrue(polygon.contains(pt))
return示例9: test_poly_intersection
def test_poly_intersection(self):
# test polygons formed exactly as in test_line_intersection2, except
# the rings are implicitly closed
# -----
# | --x--
# | . . |
# --x-- |
# -----
poly0 = Polygon([(0.0, 0.0), (3.0, 0.0), (3.0, 3.0), (0.0, 3.0)])
poly1 = Polygon([(1.0, 4.0), (-2.0, 4.0), (-2.0, 1.0), (1.0, 1.0)])
self.assertTrue(poly0.intersects(poly1))
self.assertEqual(poly0.intersections(poly1), Multipoint([(0.0, 1.0), (1.0, 3.0)]))
return示例10: test_multipoint_within_polygon
def test_multipoint_within_polygon(self):
np.random.seed(42)
x = (np.random.random(100) - 0.5) * 180.0
y = (np.random.random(100) - 0.5) * 30.0
xp = [-80, -50, 20, 35, 55, -45, -60]
yp = [0, -10, -8, -17, 15, 18, 12]
poly = Polygon(zip(xp, yp), crs=LonLatWGS84)
mp = Multipoint(zip(x, y), crs=LonLatWGS84)
subset = mp.within_polygon(poly)
excluded = [pt for pt in mp if pt not in subset]
self.assertTrue(all(poly.contains(pt) for pt in subset))
self.assertFalse(any(poly.contains(pt) for pt in excluded))
return示例11: test_poly_contains1
def test_poly_contains1(self):
# trivial cases
pt0 = Point((-0.5, 0.92))
unitsquare = Polygon([(0.0,0.0), (1.0,0.0), (1.0,1.0), (0.0,1.0)])
self.assertFalse(unitsquare.contains(pt0))
pt1 = Point((0.125, 0.875))
self.assertTrue(unitsquare.contains(pt1))
x = np.arange(-4, 5)
y = (x)**2
line = Line([(x_,y_) for x_,y_ in zip(x, y)], crs=Cartesian)
bbox = Polygon([(-2.5, 2.5), (2.5, 2.5), (2.5, -2.5), (-2.5, -2.5)],
crs=Cartesian)
self.assertEqual(list(filter(bbox.contains, line)),
[Point((-1, 1)), Point((0, 0)), Point((1, 1))])
return示例12: TestAffineTransforms
class TestAffineTransforms(unittest.TestCase):
def setUp(self):
self.square = Polygon([(0, 0), (0, 1), (1, 1), (1, 0)])
return
def test_translate(self):
M = affine_matrix(Multipoint([(0,0), (1,0), (0,1)]),
Multipoint([(1,0), (2,0), (1,1)]))
Mans = np.array([[1, 0, 1], [0, 1, 0], [0, 0, 1]])
self.assertTrue(np.allclose(M, Mans))
translated_square = self.square.apply_affine_transform(M)
ans = np.array([[1, 0], [1, 1], [2, 1], [2, 0]])
self.assertTrue(np.allclose(translated_square.get_vertices(), ans))
return
def test_rotate(self):
s2 = math.sqrt(0.5)
M = affine_matrix(Multipoint([(0,0), (1,0), (0,1)]),
Multipoint([(0,0), (s2,s2), (-s2,s2)]))
Mans = np.array([[s2, -s2, 0], [s2, s2, 0], [0, 0, 1]])
self.assertTrue(np.allclose(M, Mans))
translated_square = self.square.apply_affine_transform(M)
ans = np.array([[0, 0], [-s2, s2], [0, 2*s2], [s2, s2]])
self.assertTrue(np.allclose(translated_square.get_vertices(), ans))
return
def test_stretch(self):
M = affine_matrix(Multipoint([(0,0), (1,0), (0,1)]),
Multipoint([(0,0), (2,0), (0,2)]))
Mans = np.array([[2, 0, 0], [0, 2, 0], [0, 0, 1]])
self.assertTrue(np.allclose(M, Mans))
translated_square = self.square.apply_affine_transform(M)
ans = np.array([[0, 0], [0, 2], [2, 2], [2, 0]])
self.assertTrue(np.allclose(translated_square.get_vertices(), ans))
return示例13: test_poly_polar
def test_poly_polar(self):
p = Polygon([(0.0, 80.0), (30.0, 80.0), (60.0, 80.0), (90.0, 80.0),
(120.0, 80.0), (150.0, 80.0), (180.0, 80.0),
(-150.0, 80.0), (-120.0, 80.0), (-90.0, 80.0),
(-60.0, 80.0), (-30.0, 80.0)], crs=SphericalEarth)
self.assertTrue(p.ispolar())
p = Polygon([(0.0, 85.0, 0.0), (90.0, 85.0, 0.0), (180.0, 85.0, 0.0),
(-90.0, 85.0, 0.0)], crs=SphericalEarth)
self.assertTrue(p.ispolar())
p = Polygon([(45.0, 30.0), (40.0, 25.0), (45.0, 20.0), (35.0, 25.0)],
crs=SphericalEarth)
self.assertFalse(p.ispolar())
p = Polygon([(-80, 0), (-50, -10), (20, -8), (35, -17), (55, 15),
(-45, 18), (-60, 12)], crs=LonLatWGS84)
self.assertFalse(p.ispolar())
p = Polygon([(45.0, 30.0), (40.0, 25.0), (45.0, 20.0), (35.0, 25.0)],
crs=Cartesian)
self.assertRaises(CRSError, p.ispolar)
return示例14: test_poly_clockwise
def test_poly_clockwise(self):
p = Polygon([(0,0), (0,1), (1,1), (1,0)])
self.assertTrue(p.isclockwise())
return示例15: test_poly_output
def test_poly_output(self):
p = Polygon([(4, 2), (3, 5), (3, 2), (7, 3)])
sp = shapely.geometry.shape(p.geomdict)
self.assertEqual(p.bbox(), sp.bounds)
return