本文整理汇总了Python中karta.vector.geometry.Line类的典型用法代码示例。如果您正苦于以下问题：Python Line类的具体用法？Python Line怎么用？Python Line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Line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: 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2: test_long_attribute_names
def test_long_attribute_names(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",
"description": "line for testing",
"description_en": "Line for testing."
},
crs=LonLatWGS84)
with warnings.catch_warnings():
warnings.simplefilter("ignore")
line.to_shapefile(os.path.join(TESTDIR, "data/line_truncated_attr"))
for fnm in ("line_truncated_attr.shx",
"line_truncated_attr.shx",
"line_truncated_attr.dbf",
"line_truncated_attr.prj"):
self.assertTrue(os.path.isfile(os.path.join(TESTDIR, "data", fnm)))
line2 = read_shapefile(os.path.join(TESTDIR, "data", "line_truncated_attr"))[0]
self.assertTrue("DESCRIPTIO" in line2.properties)
self.assertTrue("DESCRIPTI2" in line2.properties)
self.assertTrue("GEOM_ID" in line2.properties)
self.assertTrue("NAME" in line2.properties)示例3: test_line_append3d
def test_line_append3d(self):
ln0 = Line([(3.0, 3.0, 2.0), (5.0, 1.0, 0.0), (3.0, 1.0, 5.0)])
ln1 = Line([(3.0, 3.0, 2.0), (5.0, 1.0, 0.0), (3.0, 1.0, 5.0),
(0.0, 1.0, 3.0)])
ln0.append(Point((0.0, 1.0, 3.0)))
self.assertEqual(ln0, ln1)
return示例4: test_to_npoints_lonlat
def test_to_npoints_lonlat(self):
line = Line([(0, 40), (120, 40)], crs=LonLatWGS84)
points = line.to_npoints(20)
ans = [Point(v, crs=LonLatWGS84) for v in [(0, 40),
(4.006549675732082, 43.200316625343305),
(8.44359845345209, 46.2434129228378),
(13.382442375999254, 49.09308515921458),
(18.894149336762318, 51.705248417290484),
(25.03918819127435, 54.027440893063556),
(31.85052685770255, 55.99968253476488),
(39.31083346558522, 57.55771841446013),
(47.329401349484314, 58.6395037346357),
(55.7308352362257, 59.194673757153645),
(64.26916476377436, 59.19467375715364),
(72.67059865051574, 58.639503734635674),
(80.68916653441482, 57.557718414460105),
(88.14947314229748, 55.999682534764844),
(94.96081180872568, 54.02744089306352),
(101.10585066323772, 51.705248417290456),
(106.61755762400078, 49.09308515921457),
(111.55640154654793, 46.24341292283779),
(115.99345032426793, 43.2003166253433),
(120, 40)]]
for a,b in zip(points, ans):
self.assertPointAlmostEqual(a, b)
return示例5: test_line_write
def test_line_write(self):
p = Line([(100.0, 0.0), (101.0, 1.0)], crs=LonLatWGS84)
s = p.as_geojson(urn="urn:ogc:def:crs:EPSG::5806")
ans = """{ "type": "Feature", "properties": {}, "geometry": { "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:EPSG::5806" } }, "coordinates": [ [ 100.0, 0.0 ], [ 101.0, 1.0 ] ], "type": "LineString" } }"""
self.verifyJson(s, ans)
return示例6: test_line_extend
def test_line_extend(self):
ln0a = Line([(3.0, 3.0, 2.0), (5.0, 1.0, 0.0), (3.0, 1.0, 5.0)])
ln0b = Line([(4.0, 4.0, 6.0), (0.0, 1.0, 3.0)])
ln1 = Line([(3.0, 3.0, 2.0), (5.0, 1.0, 0.0), (3.0, 1.0, 5.0),
(4.0, 4.0, 6.0), (0.0, 1.0, 3.0)])
ln0a.extend(ln0b)
self.assertEqual(ln0a, ln1)示例7: test_to_npoints_cartesian
def test_to_npoints_cartesian(self):
line = Line([(0.0, 0.0), (1.0, 2.0), (3.0, -2.0), (4.0, -1.0),
(4.0, 3.0), (3.0, 2.0)])
points = line.to_npoints(20)
ans = [Point(v) for v in [(0.0, 0.0),
(0.318619234003536, 0.637238468007072),
(0.637238468007072, 1.274476936014144),
(0.9558577020106079, 1.9117154040212159),
(1.274476936014144, 1.4510461279717122),
(1.59309617001768, 0.8138076599646402),
(1.911715404021216, 0.17656919195756826),
(2.230334638024752, -0.4606692760495037),
(2.5489538720282883, -1.0979077440565757),
(2.867573106031824, -1.7351462120636478),
(3.294395938694146, -1.7056040613058538),
(3.7981771815888177, -1.2018228184111823),
(4.0, -0.5729663008226373),
(4.0, 0.13948796534818164),
(4.0, 0.8519422315190006),
(4.0, 1.5643964976898195),
(4.0, 2.2768507638606383),
(4.0, 2.989305030031457),
(3.5037812428946715, 2.503781242894671),
(3.0, 2.0)]]
for a,b in zip(points, ans):
self.assertPointAlmostEqual(a, b)
return示例8: test_multipoint_subset
def test_multipoint_subset(self):
mp = Multipoint(self.vertices, data=self.data)
line = Line(self.vertices)
ss1 = mp._subset(range(2,7))
ss2 = line._subset(range(2,7))
self.assertTrue(isinstance(ss1, Multipoint))
self.assertTrue(isinstance(ss2, Line))
return示例9: test_line_output
def test_line_output(self):
p = Line([(4, 2), (3, 5), (3, 2), (7, 3)])
sp = shapely.geometry.shape(p.geomdict)
x, y = p.coords()
sx, sy = sp.xy
self.assertTrue(np.all(x == np.array(sx)))
self.assertTrue(np.all(y == np.array(sy)))
return示例10: test_vertices_in_crs3
def test_vertices_in_crs3(self):
line = Line([(2.0, 34.0),
(2.15, 34.2),
(2.7, 34.1)], crs=SphericalEarth)
UTM31N = Proj4CRS("+proj=utm +zone=31 +ellps=WGS84 "
"+datum=WGS84 +units=m +no_defs", "+ellps=WGS84")
self.assertEqual(line.get_coordinate_lists(UTM31N),
((407650.39665729366, 421687.71905896586, 472328.1095127584),
(3762606.6598763773, 3784658.467084308, 3773284.485241791)))
return示例11: test_to_points_cartesian
def test_to_points_cartesian(self):
line = Line([(0.0, 0.0), (4.0, 3.0), (1.0, 7.0)])
points = line.to_points(1.0)
ans = [(0., 0.), (0.8, 0.6), (1.6, 1.2), (2.4, 1.8), (3.2, 2.4),
(4., 3.), (3.4, 3.8), (2.8, 4.6), (2.2, 5.4), (1.6, 6.2),
(1., 7.)]
self.assertEqual(len(points), len(ans))
for pt, vert in zip(points, ans):
self.assertAlmostEqual(pt.x, vert[0])
self.assertAlmostEqual(pt.y, vert[1])
return示例12: test_line_intersection2
def test_line_intersection2(self):
# test lines that have overlapping bounding boxes, but don't cross
# -----
# | -----
# | |
# ----- |
# -----
line0 = Line([(0.0, 0.0), (3.0, 0.0), (3.0, 3.0), (0.0, 3.0)])
line1 = Line([(1.0, 4.0), (-2.0, 4.0), (-2.0, 1.0), (1.0, 1.0)])
self.assertFalse(line0.intersects(line1))
return示例13: test_to_npoints_lonlat_precision
def test_to_npoints_lonlat_precision(self):
line = Line([(-20.247017, 79.683933), (-20.0993, 79.887917),
(-19.13705, 80.048567), (-18.680467, 80.089333), (-17.451917,
80.14405), (-16.913233, 80.02715), (-16.631367, 80.022933),
(-16.194067, 80.0168), (-15.915983, 80.020267), (-15.7763,
80.021283)], crs=LonLatWGS84)
for n in range(2, 30):
self.assertEqual(len(line.to_npoints(n)), n)
return示例14: test_vertices_in_crs3
def test_vertices_in_crs3(self):
line = Line([(2.0, 34.0),
(2.15, 34.2),
(2.7, 34.1)], crs=LonLatWGS84)
UTM31N = ProjectedCRS("+proj=utm +zone=31 +ellps=WGS84 "
"+datum=WGS84 +units=m +no_defs", "UTM 31N (WGS 84)")
ans = [[407650.39665729, 3762606.65987638],
[421687.71905897, 3784658.46708431],
[472328.10951276, 3773284.48524179]]
for v0, v1 in zip(line.vertices(UTM31N), ans):
self.assertTupleAlmostEqual(v0, v1, places=6)
return示例15: test_write_reproject
def test_write_reproject(self):
# tests whether coordinates are correctly reprojected to WGS84 lon/lat
p = Line([(1e6, 1e6), (1.2e6, 1.4e6)], crs=WebMercator)
s = p.as_geojson()
ans = """{ "type": "Feature", "properties": {},
"geometry": {
"crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:OGC:1.3:CRS84" } },
"coordinates": [[8.983152841195214, 8.946573850543412],
[10.779783409434257, 12.476624651238847]],
"type": "LineString" } }"""
self.verifyJson(s, ans)
return