mirror of
https://github.com/django/django.git
synced 2024-12-24 10:05:46 +00:00
1171 lines
47 KiB
Python
1171 lines
47 KiB
Python
from __future__ import unicode_literals
|
|
|
|
import ctypes
|
|
import json
|
|
import random
|
|
import unittest
|
|
from binascii import a2b_hex, b2a_hex
|
|
from io import BytesIO
|
|
from unittest import skipUnless
|
|
|
|
from django.contrib.gis import gdal
|
|
from django.contrib.gis.gdal import HAS_GDAL
|
|
from django.contrib.gis.geos import (
|
|
HAS_GEOS, GeometryCollection, GEOSException, GEOSGeometry, LinearRing,
|
|
LineString, MultiLineString, MultiPoint, MultiPolygon, Point, Polygon,
|
|
fromfile, fromstr,
|
|
)
|
|
from django.contrib.gis.geos.base import GEOSBase
|
|
from django.contrib.gis.shortcuts import numpy
|
|
from django.template import Context
|
|
from django.template.engine import Engine
|
|
from django.test import ignore_warnings, mock
|
|
from django.utils import six
|
|
from django.utils.deprecation import RemovedInDjango20Warning
|
|
from django.utils.encoding import force_bytes
|
|
from django.utils.six.moves import range
|
|
|
|
from ..test_data import TestDataMixin
|
|
|
|
|
|
@skipUnless(HAS_GEOS, "Geos is required.")
|
|
class GEOSTest(unittest.TestCase, TestDataMixin):
|
|
|
|
def test_base(self):
|
|
"Tests out the GEOSBase class."
|
|
# Testing out GEOSBase class, which provides a `ptr` property
|
|
# that abstracts out access to underlying C pointers.
|
|
class FakeGeom1(GEOSBase):
|
|
pass
|
|
|
|
# This one only accepts pointers to floats
|
|
c_float_p = ctypes.POINTER(ctypes.c_float)
|
|
|
|
class FakeGeom2(GEOSBase):
|
|
ptr_type = c_float_p
|
|
|
|
# Default ptr_type is `c_void_p`.
|
|
fg1 = FakeGeom1()
|
|
# Default ptr_type is C float pointer
|
|
fg2 = FakeGeom2()
|
|
|
|
# These assignments are OK -- None is allowed because
|
|
# it's equivalent to the NULL pointer.
|
|
fg1.ptr = ctypes.c_void_p()
|
|
fg1.ptr = None
|
|
fg2.ptr = c_float_p(ctypes.c_float(5.23))
|
|
fg2.ptr = None
|
|
|
|
# Because pointers have been set to NULL, an exception should be
|
|
# raised when we try to access it. Raising an exception is
|
|
# preferable to a segmentation fault that commonly occurs when
|
|
# a C method is given a NULL memory reference.
|
|
for fg in (fg1, fg2):
|
|
# Equivalent to `fg.ptr`
|
|
self.assertRaises(GEOSException, fg._get_ptr)
|
|
|
|
# Anything that is either not None or the acceptable pointer type will
|
|
# result in a TypeError when trying to assign it to the `ptr` property.
|
|
# Thus, memory addresses (integers) and pointers of the incorrect type
|
|
# (in `bad_ptrs`) will not be allowed.
|
|
bad_ptrs = (5, ctypes.c_char_p(b'foobar'))
|
|
for bad_ptr in bad_ptrs:
|
|
# Equivalent to `fg.ptr = bad_ptr`
|
|
self.assertRaises(TypeError, fg1._set_ptr, bad_ptr)
|
|
self.assertRaises(TypeError, fg2._set_ptr, bad_ptr)
|
|
|
|
def test_wkt(self):
|
|
"Testing WKT output."
|
|
for g in self.geometries.wkt_out:
|
|
geom = fromstr(g.wkt)
|
|
if geom.hasz:
|
|
self.assertEqual(g.ewkt, geom.wkt)
|
|
|
|
def test_hex(self):
|
|
"Testing HEX output."
|
|
for g in self.geometries.hex_wkt:
|
|
geom = fromstr(g.wkt)
|
|
self.assertEqual(g.hex, geom.hex.decode())
|
|
|
|
def test_hexewkb(self):
|
|
"Testing (HEX)EWKB output."
|
|
# For testing HEX(EWKB).
|
|
ogc_hex = b'01010000000000000000000000000000000000F03F'
|
|
ogc_hex_3d = b'01010000800000000000000000000000000000F03F0000000000000040'
|
|
# `SELECT ST_AsHEXEWKB(ST_GeomFromText('POINT(0 1)', 4326));`
|
|
hexewkb_2d = b'0101000020E61000000000000000000000000000000000F03F'
|
|
# `SELECT ST_AsHEXEWKB(ST_GeomFromEWKT('SRID=4326;POINT(0 1 2)'));`
|
|
hexewkb_3d = b'01010000A0E61000000000000000000000000000000000F03F0000000000000040'
|
|
|
|
pnt_2d = Point(0, 1, srid=4326)
|
|
pnt_3d = Point(0, 1, 2, srid=4326)
|
|
|
|
# OGC-compliant HEX will not have SRID value.
|
|
self.assertEqual(ogc_hex, pnt_2d.hex)
|
|
self.assertEqual(ogc_hex_3d, pnt_3d.hex)
|
|
|
|
# HEXEWKB should be appropriate for its dimension -- have to use an
|
|
# a WKBWriter w/dimension set accordingly, else GEOS will insert
|
|
# garbage into 3D coordinate if there is none.
|
|
self.assertEqual(hexewkb_2d, pnt_2d.hexewkb)
|
|
self.assertEqual(hexewkb_3d, pnt_3d.hexewkb)
|
|
self.assertEqual(True, GEOSGeometry(hexewkb_3d).hasz)
|
|
|
|
# Same for EWKB.
|
|
self.assertEqual(six.memoryview(a2b_hex(hexewkb_2d)), pnt_2d.ewkb)
|
|
self.assertEqual(six.memoryview(a2b_hex(hexewkb_3d)), pnt_3d.ewkb)
|
|
|
|
# Redundant sanity check.
|
|
self.assertEqual(4326, GEOSGeometry(hexewkb_2d).srid)
|
|
|
|
def test_kml(self):
|
|
"Testing KML output."
|
|
for tg in self.geometries.wkt_out:
|
|
geom = fromstr(tg.wkt)
|
|
kml = getattr(tg, 'kml', False)
|
|
if kml:
|
|
self.assertEqual(kml, geom.kml)
|
|
|
|
def test_errors(self):
|
|
"Testing the Error handlers."
|
|
# string-based
|
|
for err in self.geometries.errors:
|
|
with self.assertRaises((GEOSException, ValueError)):
|
|
fromstr(err.wkt)
|
|
|
|
# Bad WKB
|
|
self.assertRaises(GEOSException, GEOSGeometry, six.memoryview(b'0'))
|
|
|
|
class NotAGeometry(object):
|
|
pass
|
|
|
|
# Some other object
|
|
self.assertRaises(TypeError, GEOSGeometry, NotAGeometry())
|
|
# None
|
|
self.assertRaises(TypeError, GEOSGeometry, None)
|
|
|
|
def test_wkb(self):
|
|
"Testing WKB output."
|
|
for g in self.geometries.hex_wkt:
|
|
geom = fromstr(g.wkt)
|
|
wkb = geom.wkb
|
|
self.assertEqual(b2a_hex(wkb).decode().upper(), g.hex)
|
|
|
|
def test_create_hex(self):
|
|
"Testing creation from HEX."
|
|
for g in self.geometries.hex_wkt:
|
|
geom_h = GEOSGeometry(g.hex)
|
|
# we need to do this so decimal places get normalized
|
|
geom_t = fromstr(g.wkt)
|
|
self.assertEqual(geom_t.wkt, geom_h.wkt)
|
|
|
|
def test_create_wkb(self):
|
|
"Testing creation from WKB."
|
|
for g in self.geometries.hex_wkt:
|
|
wkb = six.memoryview(a2b_hex(g.hex.encode()))
|
|
geom_h = GEOSGeometry(wkb)
|
|
# we need to do this so decimal places get normalized
|
|
geom_t = fromstr(g.wkt)
|
|
self.assertEqual(geom_t.wkt, geom_h.wkt)
|
|
|
|
def test_ewkt(self):
|
|
"Testing EWKT."
|
|
srids = (-1, 32140)
|
|
for srid in srids:
|
|
for p in self.geometries.polygons:
|
|
ewkt = 'SRID=%d;%s' % (srid, p.wkt)
|
|
poly = fromstr(ewkt)
|
|
self.assertEqual(srid, poly.srid)
|
|
self.assertEqual(srid, poly.shell.srid)
|
|
self.assertEqual(srid, fromstr(poly.ewkt).srid) # Checking export
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required.")
|
|
def test_json(self):
|
|
"Testing GeoJSON input/output (via GDAL)."
|
|
for g in self.geometries.json_geoms:
|
|
geom = GEOSGeometry(g.wkt)
|
|
if not hasattr(g, 'not_equal'):
|
|
# Loading jsons to prevent decimal differences
|
|
self.assertEqual(json.loads(g.json), json.loads(geom.json))
|
|
self.assertEqual(json.loads(g.json), json.loads(geom.geojson))
|
|
self.assertEqual(GEOSGeometry(g.wkt), GEOSGeometry(geom.json))
|
|
|
|
def test_fromfile(self):
|
|
"Testing the fromfile() factory."
|
|
ref_pnt = GEOSGeometry('POINT(5 23)')
|
|
|
|
wkt_f = BytesIO()
|
|
wkt_f.write(force_bytes(ref_pnt.wkt))
|
|
wkb_f = BytesIO()
|
|
wkb_f.write(bytes(ref_pnt.wkb))
|
|
|
|
# Other tests use `fromfile()` on string filenames so those
|
|
# aren't tested here.
|
|
for fh in (wkt_f, wkb_f):
|
|
fh.seek(0)
|
|
pnt = fromfile(fh)
|
|
self.assertEqual(ref_pnt, pnt)
|
|
|
|
def test_eq(self):
|
|
"Testing equivalence."
|
|
p = fromstr('POINT(5 23)')
|
|
self.assertEqual(p, p.wkt)
|
|
self.assertNotEqual(p, 'foo')
|
|
ls = fromstr('LINESTRING(0 0, 1 1, 5 5)')
|
|
self.assertEqual(ls, ls.wkt)
|
|
self.assertNotEqual(p, 'bar')
|
|
# Error shouldn't be raise on equivalence testing with
|
|
# an invalid type.
|
|
for g in (p, ls):
|
|
self.assertNotEqual(g, None)
|
|
self.assertNotEqual(g, {'foo': 'bar'})
|
|
self.assertNotEqual(g, False)
|
|
|
|
def test_points(self):
|
|
"Testing Point objects."
|
|
prev = fromstr('POINT(0 0)')
|
|
for p in self.geometries.points:
|
|
# Creating the point from the WKT
|
|
pnt = fromstr(p.wkt)
|
|
self.assertEqual(pnt.geom_type, 'Point')
|
|
self.assertEqual(pnt.geom_typeid, 0)
|
|
self.assertEqual(pnt.dims, 0)
|
|
self.assertEqual(p.x, pnt.x)
|
|
self.assertEqual(p.y, pnt.y)
|
|
self.assertEqual(pnt, fromstr(p.wkt))
|
|
self.assertEqual(False, pnt == prev) # Use assertEqual to test __eq__
|
|
|
|
# Making sure that the point's X, Y components are what we expect
|
|
self.assertAlmostEqual(p.x, pnt.tuple[0], 9)
|
|
self.assertAlmostEqual(p.y, pnt.tuple[1], 9)
|
|
|
|
# Testing the third dimension, and getting the tuple arguments
|
|
if hasattr(p, 'z'):
|
|
self.assertEqual(True, pnt.hasz)
|
|
self.assertEqual(p.z, pnt.z)
|
|
self.assertEqual(p.z, pnt.tuple[2], 9)
|
|
tup_args = (p.x, p.y, p.z)
|
|
set_tup1 = (2.71, 3.14, 5.23)
|
|
set_tup2 = (5.23, 2.71, 3.14)
|
|
else:
|
|
self.assertEqual(False, pnt.hasz)
|
|
self.assertIsNone(pnt.z)
|
|
tup_args = (p.x, p.y)
|
|
set_tup1 = (2.71, 3.14)
|
|
set_tup2 = (3.14, 2.71)
|
|
|
|
# Centroid operation on point should be point itself
|
|
self.assertEqual(p.centroid, pnt.centroid.tuple)
|
|
|
|
# Now testing the different constructors
|
|
pnt2 = Point(tup_args) # e.g., Point((1, 2))
|
|
pnt3 = Point(*tup_args) # e.g., Point(1, 2)
|
|
self.assertEqual(pnt, pnt2)
|
|
self.assertEqual(pnt, pnt3)
|
|
|
|
# Now testing setting the x and y
|
|
pnt.y = 3.14
|
|
pnt.x = 2.71
|
|
self.assertEqual(3.14, pnt.y)
|
|
self.assertEqual(2.71, pnt.x)
|
|
|
|
# Setting via the tuple/coords property
|
|
pnt.tuple = set_tup1
|
|
self.assertEqual(set_tup1, pnt.tuple)
|
|
pnt.coords = set_tup2
|
|
self.assertEqual(set_tup2, pnt.coords)
|
|
|
|
prev = pnt # setting the previous geometry
|
|
|
|
def test_multipoints(self):
|
|
"Testing MultiPoint objects."
|
|
for mp in self.geometries.multipoints:
|
|
mpnt = fromstr(mp.wkt)
|
|
self.assertEqual(mpnt.geom_type, 'MultiPoint')
|
|
self.assertEqual(mpnt.geom_typeid, 4)
|
|
self.assertEqual(mpnt.dims, 0)
|
|
|
|
self.assertAlmostEqual(mp.centroid[0], mpnt.centroid.tuple[0], 9)
|
|
self.assertAlmostEqual(mp.centroid[1], mpnt.centroid.tuple[1], 9)
|
|
|
|
self.assertRaises(IndexError, mpnt.__getitem__, len(mpnt))
|
|
self.assertEqual(mp.centroid, mpnt.centroid.tuple)
|
|
self.assertEqual(mp.coords, tuple(m.tuple for m in mpnt))
|
|
for p in mpnt:
|
|
self.assertEqual(p.geom_type, 'Point')
|
|
self.assertEqual(p.geom_typeid, 0)
|
|
self.assertEqual(p.empty, False)
|
|
self.assertEqual(p.valid, True)
|
|
|
|
def test_linestring(self):
|
|
"Testing LineString objects."
|
|
prev = fromstr('POINT(0 0)')
|
|
for l in self.geometries.linestrings:
|
|
ls = fromstr(l.wkt)
|
|
self.assertEqual(ls.geom_type, 'LineString')
|
|
self.assertEqual(ls.geom_typeid, 1)
|
|
self.assertEqual(ls.dims, 1)
|
|
self.assertEqual(ls.empty, False)
|
|
self.assertEqual(ls.ring, False)
|
|
if hasattr(l, 'centroid'):
|
|
self.assertEqual(l.centroid, ls.centroid.tuple)
|
|
if hasattr(l, 'tup'):
|
|
self.assertEqual(l.tup, ls.tuple)
|
|
|
|
self.assertEqual(ls, fromstr(l.wkt))
|
|
self.assertEqual(False, ls == prev) # Use assertEqual to test __eq__
|
|
self.assertRaises(IndexError, ls.__getitem__, len(ls))
|
|
prev = ls
|
|
|
|
# Creating a LineString from a tuple, list, and numpy array
|
|
self.assertEqual(ls, LineString(ls.tuple)) # tuple
|
|
self.assertEqual(ls, LineString(*ls.tuple)) # as individual arguments
|
|
self.assertEqual(ls, LineString([list(tup) for tup in ls.tuple])) # as list
|
|
# Point individual arguments
|
|
self.assertEqual(ls.wkt, LineString(*tuple(Point(tup) for tup in ls.tuple)).wkt)
|
|
if numpy:
|
|
self.assertEqual(ls, LineString(numpy.array(ls.tuple))) # as numpy array
|
|
|
|
def test_multilinestring(self):
|
|
"Testing MultiLineString objects."
|
|
prev = fromstr('POINT(0 0)')
|
|
for l in self.geometries.multilinestrings:
|
|
ml = fromstr(l.wkt)
|
|
self.assertEqual(ml.geom_type, 'MultiLineString')
|
|
self.assertEqual(ml.geom_typeid, 5)
|
|
self.assertEqual(ml.dims, 1)
|
|
|
|
self.assertAlmostEqual(l.centroid[0], ml.centroid.x, 9)
|
|
self.assertAlmostEqual(l.centroid[1], ml.centroid.y, 9)
|
|
|
|
self.assertEqual(ml, fromstr(l.wkt))
|
|
self.assertEqual(False, ml == prev) # Use assertEqual to test __eq__
|
|
prev = ml
|
|
|
|
for ls in ml:
|
|
self.assertEqual(ls.geom_type, 'LineString')
|
|
self.assertEqual(ls.geom_typeid, 1)
|
|
self.assertEqual(ls.empty, False)
|
|
|
|
self.assertRaises(IndexError, ml.__getitem__, len(ml))
|
|
self.assertEqual(ml.wkt, MultiLineString(*tuple(s.clone() for s in ml)).wkt)
|
|
self.assertEqual(ml, MultiLineString(*tuple(LineString(s.tuple) for s in ml)))
|
|
|
|
def test_linearring(self):
|
|
"Testing LinearRing objects."
|
|
for rr in self.geometries.linearrings:
|
|
lr = fromstr(rr.wkt)
|
|
self.assertEqual(lr.geom_type, 'LinearRing')
|
|
self.assertEqual(lr.geom_typeid, 2)
|
|
self.assertEqual(lr.dims, 1)
|
|
self.assertEqual(rr.n_p, len(lr))
|
|
self.assertEqual(True, lr.valid)
|
|
self.assertEqual(False, lr.empty)
|
|
|
|
# Creating a LinearRing from a tuple, list, and numpy array
|
|
self.assertEqual(lr, LinearRing(lr.tuple))
|
|
self.assertEqual(lr, LinearRing(*lr.tuple))
|
|
self.assertEqual(lr, LinearRing([list(tup) for tup in lr.tuple]))
|
|
if numpy:
|
|
self.assertEqual(lr, LinearRing(numpy.array(lr.tuple)))
|
|
|
|
def test_polygons_from_bbox(self):
|
|
"Testing `from_bbox` class method."
|
|
bbox = (-180, -90, 180, 90)
|
|
p = Polygon.from_bbox(bbox)
|
|
self.assertEqual(bbox, p.extent)
|
|
|
|
# Testing numerical precision
|
|
x = 3.14159265358979323
|
|
bbox = (0, 0, 1, x)
|
|
p = Polygon.from_bbox(bbox)
|
|
y = p.extent[-1]
|
|
self.assertEqual(format(x, '.13f'), format(y, '.13f'))
|
|
|
|
def test_polygons(self):
|
|
"Testing Polygon objects."
|
|
|
|
prev = fromstr('POINT(0 0)')
|
|
for p in self.geometries.polygons:
|
|
# Creating the Polygon, testing its properties.
|
|
poly = fromstr(p.wkt)
|
|
self.assertEqual(poly.geom_type, 'Polygon')
|
|
self.assertEqual(poly.geom_typeid, 3)
|
|
self.assertEqual(poly.dims, 2)
|
|
self.assertEqual(poly.empty, False)
|
|
self.assertEqual(poly.ring, False)
|
|
self.assertEqual(p.n_i, poly.num_interior_rings)
|
|
self.assertEqual(p.n_i + 1, len(poly)) # Testing __len__
|
|
self.assertEqual(p.n_p, poly.num_points)
|
|
|
|
# Area & Centroid
|
|
self.assertAlmostEqual(p.area, poly.area, 9)
|
|
self.assertAlmostEqual(p.centroid[0], poly.centroid.tuple[0], 9)
|
|
self.assertAlmostEqual(p.centroid[1], poly.centroid.tuple[1], 9)
|
|
|
|
# Testing the geometry equivalence
|
|
self.assertEqual(poly, fromstr(p.wkt))
|
|
# Should not be equal to previous geometry
|
|
self.assertEqual(False, poly == prev) # Use assertEqual to test __eq__
|
|
self.assertNotEqual(poly, prev) # Use assertNotEqual to test __ne__
|
|
|
|
# Testing the exterior ring
|
|
ring = poly.exterior_ring
|
|
self.assertEqual(ring.geom_type, 'LinearRing')
|
|
self.assertEqual(ring.geom_typeid, 2)
|
|
if p.ext_ring_cs:
|
|
self.assertEqual(p.ext_ring_cs, ring.tuple)
|
|
self.assertEqual(p.ext_ring_cs, poly[0].tuple) # Testing __getitem__
|
|
|
|
# Testing __getitem__ and __setitem__ on invalid indices
|
|
self.assertRaises(IndexError, poly.__getitem__, len(poly))
|
|
self.assertRaises(IndexError, poly.__setitem__, len(poly), False)
|
|
self.assertRaises(IndexError, poly.__getitem__, -1 * len(poly) - 1)
|
|
|
|
# Testing __iter__
|
|
for r in poly:
|
|
self.assertEqual(r.geom_type, 'LinearRing')
|
|
self.assertEqual(r.geom_typeid, 2)
|
|
|
|
# Testing polygon construction.
|
|
self.assertRaises(TypeError, Polygon, 0, [1, 2, 3])
|
|
self.assertRaises(TypeError, Polygon, 'foo')
|
|
|
|
# Polygon(shell, (hole1, ... holeN))
|
|
rings = tuple(r for r in poly)
|
|
self.assertEqual(poly, Polygon(rings[0], rings[1:]))
|
|
|
|
# Polygon(shell_tuple, hole_tuple1, ... , hole_tupleN)
|
|
ring_tuples = tuple(r.tuple for r in poly)
|
|
self.assertEqual(poly, Polygon(*ring_tuples))
|
|
|
|
# Constructing with tuples of LinearRings.
|
|
self.assertEqual(poly.wkt, Polygon(*tuple(r for r in poly)).wkt)
|
|
self.assertEqual(poly.wkt, Polygon(*tuple(LinearRing(r.tuple) for r in poly)).wkt)
|
|
|
|
def test_polygons_templates(self):
|
|
# Accessing Polygon attributes in templates should work.
|
|
engine = Engine()
|
|
template = engine.from_string('{{ polygons.0.wkt }}')
|
|
polygons = [fromstr(p.wkt) for p in self.geometries.multipolygons[:2]]
|
|
content = template.render(Context({'polygons': polygons}))
|
|
self.assertIn('MULTIPOLYGON (((100', content)
|
|
|
|
def test_polygon_comparison(self):
|
|
p1 = Polygon(((0, 0), (0, 1), (1, 1), (1, 0), (0, 0)))
|
|
p2 = Polygon(((0, 0), (0, 1), (1, 0), (0, 0)))
|
|
self.assertGreater(p1, p2)
|
|
self.assertLess(p2, p1)
|
|
|
|
p3 = Polygon(((0, 0), (0, 1), (1, 1), (2, 0), (0, 0)))
|
|
p4 = Polygon(((0, 0), (0, 1), (2, 2), (1, 0), (0, 0)))
|
|
self.assertGreater(p4, p3)
|
|
self.assertLess(p3, p4)
|
|
|
|
def test_multipolygons(self):
|
|
"Testing MultiPolygon objects."
|
|
fromstr('POINT (0 0)')
|
|
for mp in self.geometries.multipolygons:
|
|
mpoly = fromstr(mp.wkt)
|
|
self.assertEqual(mpoly.geom_type, 'MultiPolygon')
|
|
self.assertEqual(mpoly.geom_typeid, 6)
|
|
self.assertEqual(mpoly.dims, 2)
|
|
self.assertEqual(mp.valid, mpoly.valid)
|
|
|
|
if mp.valid:
|
|
self.assertEqual(mp.num_geom, mpoly.num_geom)
|
|
self.assertEqual(mp.n_p, mpoly.num_coords)
|
|
self.assertEqual(mp.num_geom, len(mpoly))
|
|
self.assertRaises(IndexError, mpoly.__getitem__, len(mpoly))
|
|
for p in mpoly:
|
|
self.assertEqual(p.geom_type, 'Polygon')
|
|
self.assertEqual(p.geom_typeid, 3)
|
|
self.assertEqual(p.valid, True)
|
|
self.assertEqual(mpoly.wkt, MultiPolygon(*tuple(poly.clone() for poly in mpoly)).wkt)
|
|
|
|
def test_memory_hijinks(self):
|
|
"Testing Geometry __del__() on rings and polygons."
|
|
# #### Memory issues with rings and poly
|
|
|
|
# These tests are needed to ensure sanity with writable geometries.
|
|
|
|
# Getting a polygon with interior rings, and pulling out the interior rings
|
|
poly = fromstr(self.geometries.polygons[1].wkt)
|
|
ring1 = poly[0]
|
|
ring2 = poly[1]
|
|
|
|
# These deletes should be 'harmless' since they are done on child geometries
|
|
del ring1
|
|
del ring2
|
|
ring1 = poly[0]
|
|
ring2 = poly[1]
|
|
|
|
# Deleting the polygon
|
|
del poly
|
|
|
|
# Access to these rings is OK since they are clones.
|
|
str(ring1)
|
|
str(ring2)
|
|
|
|
def test_coord_seq(self):
|
|
"Testing Coordinate Sequence objects."
|
|
for p in self.geometries.polygons:
|
|
if p.ext_ring_cs:
|
|
# Constructing the polygon and getting the coordinate sequence
|
|
poly = fromstr(p.wkt)
|
|
cs = poly.exterior_ring.coord_seq
|
|
|
|
self.assertEqual(p.ext_ring_cs, cs.tuple) # done in the Polygon test too.
|
|
self.assertEqual(len(p.ext_ring_cs), len(cs)) # Making sure __len__ works
|
|
|
|
# Checks __getitem__ and __setitem__
|
|
for i in range(len(p.ext_ring_cs)):
|
|
c1 = p.ext_ring_cs[i] # Expected value
|
|
c2 = cs[i] # Value from coordseq
|
|
self.assertEqual(c1, c2)
|
|
|
|
# Constructing the test value to set the coordinate sequence with
|
|
if len(c1) == 2:
|
|
tset = (5, 23)
|
|
else:
|
|
tset = (5, 23, 8)
|
|
cs[i] = tset
|
|
|
|
# Making sure every set point matches what we expect
|
|
for j in range(len(tset)):
|
|
cs[i] = tset
|
|
self.assertEqual(tset[j], cs[i][j])
|
|
|
|
def test_relate_pattern(self):
|
|
"Testing relate() and relate_pattern()."
|
|
g = fromstr('POINT (0 0)')
|
|
self.assertRaises(GEOSException, g.relate_pattern, 0, 'invalid pattern, yo')
|
|
for rg in self.geometries.relate_geoms:
|
|
a = fromstr(rg.wkt_a)
|
|
b = fromstr(rg.wkt_b)
|
|
self.assertEqual(rg.result, a.relate_pattern(b, rg.pattern))
|
|
self.assertEqual(rg.pattern, a.relate(b))
|
|
|
|
def test_intersection(self):
|
|
"Testing intersects() and intersection()."
|
|
for i in range(len(self.geometries.topology_geoms)):
|
|
a = fromstr(self.geometries.topology_geoms[i].wkt_a)
|
|
b = fromstr(self.geometries.topology_geoms[i].wkt_b)
|
|
i1 = fromstr(self.geometries.intersect_geoms[i].wkt)
|
|
self.assertEqual(True, a.intersects(b))
|
|
i2 = a.intersection(b)
|
|
self.assertEqual(i1, i2)
|
|
self.assertEqual(i1, a & b) # __and__ is intersection operator
|
|
a &= b # testing __iand__
|
|
self.assertEqual(i1, a)
|
|
|
|
def test_union(self):
|
|
"Testing union()."
|
|
for i in range(len(self.geometries.topology_geoms)):
|
|
a = fromstr(self.geometries.topology_geoms[i].wkt_a)
|
|
b = fromstr(self.geometries.topology_geoms[i].wkt_b)
|
|
u1 = fromstr(self.geometries.union_geoms[i].wkt)
|
|
u2 = a.union(b)
|
|
self.assertEqual(u1, u2)
|
|
self.assertEqual(u1, a | b) # __or__ is union operator
|
|
a |= b # testing __ior__
|
|
self.assertEqual(u1, a)
|
|
|
|
def test_difference(self):
|
|
"Testing difference()."
|
|
for i in range(len(self.geometries.topology_geoms)):
|
|
a = fromstr(self.geometries.topology_geoms[i].wkt_a)
|
|
b = fromstr(self.geometries.topology_geoms[i].wkt_b)
|
|
d1 = fromstr(self.geometries.diff_geoms[i].wkt)
|
|
d2 = a.difference(b)
|
|
self.assertEqual(d1, d2)
|
|
self.assertEqual(d1, a - b) # __sub__ is difference operator
|
|
a -= b # testing __isub__
|
|
self.assertEqual(d1, a)
|
|
|
|
def test_symdifference(self):
|
|
"Testing sym_difference()."
|
|
for i in range(len(self.geometries.topology_geoms)):
|
|
a = fromstr(self.geometries.topology_geoms[i].wkt_a)
|
|
b = fromstr(self.geometries.topology_geoms[i].wkt_b)
|
|
d1 = fromstr(self.geometries.sdiff_geoms[i].wkt)
|
|
d2 = a.sym_difference(b)
|
|
self.assertEqual(d1, d2)
|
|
self.assertEqual(d1, a ^ b) # __xor__ is symmetric difference operator
|
|
a ^= b # testing __ixor__
|
|
self.assertEqual(d1, a)
|
|
|
|
def test_buffer(self):
|
|
"Testing buffer()."
|
|
for bg in self.geometries.buffer_geoms:
|
|
g = fromstr(bg.wkt)
|
|
|
|
# The buffer we expect
|
|
exp_buf = fromstr(bg.buffer_wkt)
|
|
quadsegs = bg.quadsegs
|
|
width = bg.width
|
|
|
|
# Can't use a floating-point for the number of quadsegs.
|
|
self.assertRaises(ctypes.ArgumentError, g.buffer, width, float(quadsegs))
|
|
|
|
# Constructing our buffer
|
|
buf = g.buffer(width, quadsegs)
|
|
self.assertEqual(exp_buf.num_coords, buf.num_coords)
|
|
self.assertEqual(len(exp_buf), len(buf))
|
|
|
|
# Now assuring that each point in the buffer is almost equal
|
|
for j in range(len(exp_buf)):
|
|
exp_ring = exp_buf[j]
|
|
buf_ring = buf[j]
|
|
self.assertEqual(len(exp_ring), len(buf_ring))
|
|
for k in range(len(exp_ring)):
|
|
# Asserting the X, Y of each point are almost equal (due to floating point imprecision)
|
|
self.assertAlmostEqual(exp_ring[k][0], buf_ring[k][0], 9)
|
|
self.assertAlmostEqual(exp_ring[k][1], buf_ring[k][1], 9)
|
|
|
|
def test_srid(self):
|
|
"Testing the SRID property and keyword."
|
|
# Testing SRID keyword on Point
|
|
pnt = Point(5, 23, srid=4326)
|
|
self.assertEqual(4326, pnt.srid)
|
|
pnt.srid = 3084
|
|
self.assertEqual(3084, pnt.srid)
|
|
with self.assertRaises(ctypes.ArgumentError):
|
|
pnt.srid = '4326'
|
|
|
|
# Testing SRID keyword on fromstr(), and on Polygon rings.
|
|
poly = fromstr(self.geometries.polygons[1].wkt, srid=4269)
|
|
self.assertEqual(4269, poly.srid)
|
|
for ring in poly:
|
|
self.assertEqual(4269, ring.srid)
|
|
poly.srid = 4326
|
|
self.assertEqual(4326, poly.shell.srid)
|
|
|
|
# Testing SRID keyword on GeometryCollection
|
|
gc = GeometryCollection(Point(5, 23), LineString((0, 0), (1.5, 1.5), (3, 3)), srid=32021)
|
|
self.assertEqual(32021, gc.srid)
|
|
for i in range(len(gc)):
|
|
self.assertEqual(32021, gc[i].srid)
|
|
|
|
# GEOS may get the SRID from HEXEWKB
|
|
# 'POINT(5 23)' at SRID=4326 in hex form -- obtained from PostGIS
|
|
# using `SELECT GeomFromText('POINT (5 23)', 4326);`.
|
|
hex = '0101000020E610000000000000000014400000000000003740'
|
|
p1 = fromstr(hex)
|
|
self.assertEqual(4326, p1.srid)
|
|
|
|
p2 = fromstr(p1.hex)
|
|
self.assertIsNone(p2.srid)
|
|
p3 = fromstr(p1.hex, srid=-1) # -1 is intended.
|
|
self.assertEqual(-1, p3.srid)
|
|
|
|
# Testing that geometry SRID could be set to its own value
|
|
pnt_wo_srid = Point(1, 1)
|
|
pnt_wo_srid.srid = pnt_wo_srid.srid
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required.")
|
|
def test_custom_srid(self):
|
|
"""Test with a null srid and a srid unknown to GDAL."""
|
|
for srid in [None, 999999]:
|
|
pnt = Point(111200, 220900, srid=srid)
|
|
self.assertTrue(pnt.ewkt.startswith(("SRID=%s;" % srid if srid else '') + "POINT (111200.0"))
|
|
self.assertIsInstance(pnt.ogr, gdal.OGRGeometry)
|
|
self.assertIsNone(pnt.srs)
|
|
|
|
# Test conversion from custom to a known srid
|
|
c2w = gdal.CoordTransform(
|
|
gdal.SpatialReference(
|
|
'+proj=mill +lat_0=0 +lon_0=0 +x_0=0 +y_0=0 +R_A +ellps=WGS84 '
|
|
'+datum=WGS84 +units=m +no_defs'
|
|
),
|
|
gdal.SpatialReference(4326))
|
|
new_pnt = pnt.transform(c2w, clone=True)
|
|
self.assertEqual(new_pnt.srid, 4326)
|
|
self.assertAlmostEqual(new_pnt.x, 1, 3)
|
|
self.assertAlmostEqual(new_pnt.y, 2, 3)
|
|
|
|
def test_mutable_geometries(self):
|
|
"Testing the mutability of Polygons and Geometry Collections."
|
|
# ### Testing the mutability of Polygons ###
|
|
for p in self.geometries.polygons:
|
|
poly = fromstr(p.wkt)
|
|
|
|
# Should only be able to use __setitem__ with LinearRing geometries.
|
|
self.assertRaises(TypeError, poly.__setitem__, 0, LineString((1, 1), (2, 2)))
|
|
|
|
# Constructing the new shell by adding 500 to every point in the old shell.
|
|
shell_tup = poly.shell.tuple
|
|
new_coords = []
|
|
for point in shell_tup:
|
|
new_coords.append((point[0] + 500., point[1] + 500.))
|
|
new_shell = LinearRing(*tuple(new_coords))
|
|
|
|
# Assigning polygon's exterior ring w/the new shell
|
|
poly.exterior_ring = new_shell
|
|
str(new_shell) # new shell is still accessible
|
|
self.assertEqual(poly.exterior_ring, new_shell)
|
|
self.assertEqual(poly[0], new_shell)
|
|
|
|
# ### Testing the mutability of Geometry Collections
|
|
for tg in self.geometries.multipoints:
|
|
mp = fromstr(tg.wkt)
|
|
for i in range(len(mp)):
|
|
# Creating a random point.
|
|
pnt = mp[i]
|
|
new = Point(random.randint(21, 100), random.randint(21, 100))
|
|
# Testing the assignment
|
|
mp[i] = new
|
|
str(new) # what was used for the assignment is still accessible
|
|
self.assertEqual(mp[i], new)
|
|
self.assertEqual(mp[i].wkt, new.wkt)
|
|
self.assertNotEqual(pnt, mp[i])
|
|
|
|
# MultiPolygons involve much more memory management because each
|
|
# Polygon w/in the collection has its own rings.
|
|
for tg in self.geometries.multipolygons:
|
|
mpoly = fromstr(tg.wkt)
|
|
for i in range(len(mpoly)):
|
|
poly = mpoly[i]
|
|
old_poly = mpoly[i]
|
|
# Offsetting the each ring in the polygon by 500.
|
|
for j in range(len(poly)):
|
|
r = poly[j]
|
|
for k in range(len(r)):
|
|
r[k] = (r[k][0] + 500., r[k][1] + 500.)
|
|
poly[j] = r
|
|
|
|
self.assertNotEqual(mpoly[i], poly)
|
|
# Testing the assignment
|
|
mpoly[i] = poly
|
|
str(poly) # Still accessible
|
|
self.assertEqual(mpoly[i], poly)
|
|
self.assertNotEqual(mpoly[i], old_poly)
|
|
|
|
# Extreme (!!) __setitem__ -- no longer works, have to detect
|
|
# in the first object that __setitem__ is called in the subsequent
|
|
# objects -- maybe mpoly[0, 0, 0] = (3.14, 2.71)?
|
|
# mpoly[0][0][0] = (3.14, 2.71)
|
|
# self.assertEqual((3.14, 2.71), mpoly[0][0][0])
|
|
# Doing it more slowly..
|
|
# self.assertEqual((3.14, 2.71), mpoly[0].shell[0])
|
|
# del mpoly
|
|
|
|
def test_point_list_assignment(self):
|
|
p = Point(0, 0)
|
|
|
|
p[:] = (1, 2, 3)
|
|
self.assertEqual(p, Point(1, 2, 3))
|
|
|
|
p[:] = (1, 2)
|
|
self.assertEqual(p.wkt, Point(1, 2))
|
|
|
|
with self.assertRaises(ValueError):
|
|
p[:] = (1,)
|
|
with self.assertRaises(ValueError):
|
|
p[:] = (1, 2, 3, 4, 5)
|
|
|
|
def test_linestring_list_assignment(self):
|
|
ls = LineString((0, 0), (1, 1))
|
|
|
|
ls[:] = ((0, 0), (1, 1), (2, 2))
|
|
self.assertEqual(ls, LineString((0, 0), (1, 1), (2, 2)))
|
|
|
|
with self.assertRaises(ValueError):
|
|
ls[:] = (1,)
|
|
|
|
def test_linearring_list_assignment(self):
|
|
ls = LinearRing((0, 0), (0, 1), (1, 1), (0, 0))
|
|
|
|
ls[:] = ((0, 0), (0, 1), (1, 1), (1, 0), (0, 0))
|
|
self.assertEqual(ls, LinearRing((0, 0), (0, 1), (1, 1), (1, 0), (0, 0)))
|
|
|
|
with self.assertRaises(ValueError):
|
|
ls[:] = ((0, 0), (1, 1), (2, 2))
|
|
|
|
def test_threed(self):
|
|
"Testing three-dimensional geometries."
|
|
# Testing a 3D Point
|
|
pnt = Point(2, 3, 8)
|
|
self.assertEqual((2., 3., 8.), pnt.coords)
|
|
with self.assertRaises(TypeError):
|
|
pnt.tuple = (1., 2.)
|
|
pnt.coords = (1., 2., 3.)
|
|
self.assertEqual((1., 2., 3.), pnt.coords)
|
|
|
|
# Testing a 3D LineString
|
|
ls = LineString((2., 3., 8.), (50., 250., -117.))
|
|
self.assertEqual(((2., 3., 8.), (50., 250., -117.)), ls.tuple)
|
|
self.assertRaises(TypeError, ls.__setitem__, 0, (1., 2.))
|
|
ls[0] = (1., 2., 3.)
|
|
self.assertEqual((1., 2., 3.), ls[0])
|
|
|
|
def test_distance(self):
|
|
"Testing the distance() function."
|
|
# Distance to self should be 0.
|
|
pnt = Point(0, 0)
|
|
self.assertEqual(0.0, pnt.distance(Point(0, 0)))
|
|
|
|
# Distance should be 1
|
|
self.assertEqual(1.0, pnt.distance(Point(0, 1)))
|
|
|
|
# Distance should be ~ sqrt(2)
|
|
self.assertAlmostEqual(1.41421356237, pnt.distance(Point(1, 1)), 11)
|
|
|
|
# Distances are from the closest vertex in each geometry --
|
|
# should be 3 (distance from (2, 2) to (5, 2)).
|
|
ls1 = LineString((0, 0), (1, 1), (2, 2))
|
|
ls2 = LineString((5, 2), (6, 1), (7, 0))
|
|
self.assertEqual(3, ls1.distance(ls2))
|
|
|
|
def test_length(self):
|
|
"Testing the length property."
|
|
# Points have 0 length.
|
|
pnt = Point(0, 0)
|
|
self.assertEqual(0.0, pnt.length)
|
|
|
|
# Should be ~ sqrt(2)
|
|
ls = LineString((0, 0), (1, 1))
|
|
self.assertAlmostEqual(1.41421356237, ls.length, 11)
|
|
|
|
# Should be circumference of Polygon
|
|
poly = Polygon(LinearRing((0, 0), (0, 1), (1, 1), (1, 0), (0, 0)))
|
|
self.assertEqual(4.0, poly.length)
|
|
|
|
# Should be sum of each element's length in collection.
|
|
mpoly = MultiPolygon(poly.clone(), poly)
|
|
self.assertEqual(8.0, mpoly.length)
|
|
|
|
def test_emptyCollections(self):
|
|
"Testing empty geometries and collections."
|
|
gc1 = GeometryCollection([])
|
|
gc2 = fromstr('GEOMETRYCOLLECTION EMPTY')
|
|
pnt = fromstr('POINT EMPTY')
|
|
ls = fromstr('LINESTRING EMPTY')
|
|
poly = fromstr('POLYGON EMPTY')
|
|
mls = fromstr('MULTILINESTRING EMPTY')
|
|
mpoly1 = fromstr('MULTIPOLYGON EMPTY')
|
|
mpoly2 = MultiPolygon(())
|
|
|
|
for g in [gc1, gc2, pnt, ls, poly, mls, mpoly1, mpoly2]:
|
|
self.assertEqual(True, g.empty)
|
|
|
|
# Testing len() and num_geom.
|
|
if isinstance(g, Polygon):
|
|
self.assertEqual(1, len(g)) # Has one empty linear ring
|
|
self.assertEqual(1, g.num_geom)
|
|
self.assertEqual(0, len(g[0]))
|
|
elif isinstance(g, (Point, LineString)):
|
|
self.assertEqual(1, g.num_geom)
|
|
self.assertEqual(0, len(g))
|
|
else:
|
|
self.assertEqual(0, g.num_geom)
|
|
self.assertEqual(0, len(g))
|
|
|
|
# Testing __getitem__ (doesn't work on Point or Polygon)
|
|
if isinstance(g, Point):
|
|
with self.assertRaises(IndexError):
|
|
g.x
|
|
elif isinstance(g, Polygon):
|
|
lr = g.shell
|
|
self.assertEqual('LINEARRING EMPTY', lr.wkt)
|
|
self.assertEqual(0, len(lr))
|
|
self.assertEqual(True, lr.empty)
|
|
self.assertRaises(IndexError, lr.__getitem__, 0)
|
|
else:
|
|
self.assertRaises(IndexError, g.__getitem__, 0)
|
|
|
|
def test_collection_dims(self):
|
|
gc = GeometryCollection([])
|
|
self.assertEqual(gc.dims, -1)
|
|
|
|
gc = GeometryCollection(Point(0, 0))
|
|
self.assertEqual(gc.dims, 0)
|
|
|
|
gc = GeometryCollection(LineString((0, 0), (1, 1)), Point(0, 0))
|
|
self.assertEqual(gc.dims, 1)
|
|
|
|
gc = GeometryCollection(LineString((0, 0), (1, 1)), Polygon(((0, 0), (0, 1), (1, 1), (0, 0))), Point(0, 0))
|
|
self.assertEqual(gc.dims, 2)
|
|
|
|
def test_collections_of_collections(self):
|
|
"Testing GeometryCollection handling of other collections."
|
|
# Creating a GeometryCollection WKT string composed of other
|
|
# collections and polygons.
|
|
coll = [mp.wkt for mp in self.geometries.multipolygons if mp.valid]
|
|
coll.extend(mls.wkt for mls in self.geometries.multilinestrings)
|
|
coll.extend(p.wkt for p in self.geometries.polygons)
|
|
coll.extend(mp.wkt for mp in self.geometries.multipoints)
|
|
gc_wkt = 'GEOMETRYCOLLECTION(%s)' % ','.join(coll)
|
|
|
|
# Should construct ok from WKT
|
|
gc1 = GEOSGeometry(gc_wkt)
|
|
|
|
# Should also construct ok from individual geometry arguments.
|
|
gc2 = GeometryCollection(*tuple(g for g in gc1))
|
|
|
|
# And, they should be equal.
|
|
self.assertEqual(gc1, gc2)
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required.")
|
|
def test_gdal(self):
|
|
"Testing `ogr` and `srs` properties."
|
|
g1 = fromstr('POINT(5 23)')
|
|
self.assertIsInstance(g1.ogr, gdal.OGRGeometry)
|
|
self.assertIsNone(g1.srs)
|
|
|
|
g1_3d = fromstr('POINT(5 23 8)')
|
|
self.assertIsInstance(g1_3d.ogr, gdal.OGRGeometry)
|
|
self.assertEqual(g1_3d.ogr.z, 8)
|
|
|
|
g2 = fromstr('LINESTRING(0 0, 5 5, 23 23)', srid=4326)
|
|
self.assertIsInstance(g2.ogr, gdal.OGRGeometry)
|
|
self.assertIsInstance(g2.srs, gdal.SpatialReference)
|
|
self.assertEqual(g2.hex, g2.ogr.hex)
|
|
self.assertEqual('WGS 84', g2.srs.name)
|
|
|
|
def test_copy(self):
|
|
"Testing use with the Python `copy` module."
|
|
import copy
|
|
poly = GEOSGeometry('POLYGON((0 0, 0 23, 23 23, 23 0, 0 0), (5 5, 5 10, 10 10, 10 5, 5 5))')
|
|
cpy1 = copy.copy(poly)
|
|
cpy2 = copy.deepcopy(poly)
|
|
self.assertNotEqual(poly._ptr, cpy1._ptr)
|
|
self.assertNotEqual(poly._ptr, cpy2._ptr)
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required to transform geometries")
|
|
def test_transform(self):
|
|
"Testing `transform` method."
|
|
orig = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
trans = GEOSGeometry('POINT (992385.4472045 481455.4944650)', 2774)
|
|
|
|
# Using a srid, a SpatialReference object, and a CoordTransform object
|
|
# for transformations.
|
|
t1, t2, t3 = orig.clone(), orig.clone(), orig.clone()
|
|
t1.transform(trans.srid)
|
|
t2.transform(gdal.SpatialReference('EPSG:2774'))
|
|
ct = gdal.CoordTransform(gdal.SpatialReference('WGS84'), gdal.SpatialReference(2774))
|
|
t3.transform(ct)
|
|
|
|
# Testing use of the `clone` keyword.
|
|
k1 = orig.clone()
|
|
k2 = k1.transform(trans.srid, clone=True)
|
|
self.assertEqual(k1, orig)
|
|
self.assertNotEqual(k1, k2)
|
|
|
|
prec = 3
|
|
for p in (t1, t2, t3, k2):
|
|
self.assertAlmostEqual(trans.x, p.x, prec)
|
|
self.assertAlmostEqual(trans.y, p.y, prec)
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required to transform geometries")
|
|
def test_transform_3d(self):
|
|
p3d = GEOSGeometry('POINT (5 23 100)', 4326)
|
|
p3d.transform(2774)
|
|
self.assertEqual(p3d.z, 100)
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required.")
|
|
def test_transform_noop(self):
|
|
""" Testing `transform` method (SRID match) """
|
|
# transform() should no-op if source & dest SRIDs match,
|
|
# regardless of whether GDAL is available.
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
gt = g.tuple
|
|
g.transform(4326)
|
|
self.assertEqual(g.tuple, gt)
|
|
self.assertEqual(g.srid, 4326)
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
g1 = g.transform(4326, clone=True)
|
|
self.assertEqual(g1.tuple, g.tuple)
|
|
self.assertEqual(g1.srid, 4326)
|
|
self.assertIsNot(g1, g, "Clone didn't happen")
|
|
|
|
with mock.patch('django.contrib.gis.gdal.HAS_GDAL', False):
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
gt = g.tuple
|
|
g.transform(4326)
|
|
self.assertEqual(g.tuple, gt)
|
|
self.assertEqual(g.srid, 4326)
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
g1 = g.transform(4326, clone=True)
|
|
self.assertEqual(g1.tuple, g.tuple)
|
|
self.assertEqual(g1.srid, 4326)
|
|
self.assertIsNot(g1, g, "Clone didn't happen")
|
|
|
|
@skipUnless(HAS_GDAL, "GDAL is required.")
|
|
def test_transform_nosrid(self):
|
|
""" Testing `transform` method (no SRID or negative SRID) """
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', srid=None)
|
|
self.assertRaises(GEOSException, g.transform, 2774)
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', srid=None)
|
|
self.assertRaises(GEOSException, g.transform, 2774, clone=True)
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', srid=-1)
|
|
self.assertRaises(GEOSException, g.transform, 2774)
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', srid=-1)
|
|
self.assertRaises(GEOSException, g.transform, 2774, clone=True)
|
|
|
|
@mock.patch('django.contrib.gis.gdal.HAS_GDAL', False)
|
|
def test_transform_nogdal(self):
|
|
""" Testing `transform` method (GDAL not available) """
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
self.assertRaises(GEOSException, g.transform, 2774)
|
|
|
|
g = GEOSGeometry('POINT (-104.609 38.255)', 4326)
|
|
self.assertRaises(GEOSException, g.transform, 2774, clone=True)
|
|
|
|
def test_extent(self):
|
|
"Testing `extent` method."
|
|
# The xmin, ymin, xmax, ymax of the MultiPoint should be returned.
|
|
mp = MultiPoint(Point(5, 23), Point(0, 0), Point(10, 50))
|
|
self.assertEqual((0.0, 0.0, 10.0, 50.0), mp.extent)
|
|
pnt = Point(5.23, 17.8)
|
|
# Extent of points is just the point itself repeated.
|
|
self.assertEqual((5.23, 17.8, 5.23, 17.8), pnt.extent)
|
|
# Testing on the 'real world' Polygon.
|
|
poly = fromstr(self.geometries.polygons[3].wkt)
|
|
ring = poly.shell
|
|
x, y = ring.x, ring.y
|
|
xmin, ymin = min(x), min(y)
|
|
xmax, ymax = max(x), max(y)
|
|
self.assertEqual((xmin, ymin, xmax, ymax), poly.extent)
|
|
|
|
def test_pickle(self):
|
|
"Testing pickling and unpickling support."
|
|
# Using both pickle and cPickle -- just 'cause.
|
|
from django.utils.six.moves import cPickle
|
|
import pickle
|
|
|
|
# Creating a list of test geometries for pickling,
|
|
# and setting the SRID on some of them.
|
|
def get_geoms(lst, srid=None):
|
|
return [GEOSGeometry(tg.wkt, srid) for tg in lst]
|
|
tgeoms = get_geoms(self.geometries.points)
|
|
tgeoms.extend(get_geoms(self.geometries.multilinestrings, 4326))
|
|
tgeoms.extend(get_geoms(self.geometries.polygons, 3084))
|
|
tgeoms.extend(get_geoms(self.geometries.multipolygons, 3857))
|
|
|
|
for geom in tgeoms:
|
|
s1, s2 = cPickle.dumps(geom), pickle.dumps(geom)
|
|
g1, g2 = cPickle.loads(s1), pickle.loads(s2)
|
|
for tmpg in (g1, g2):
|
|
self.assertEqual(geom, tmpg)
|
|
self.assertEqual(geom.srid, tmpg.srid)
|
|
|
|
def test_prepared(self):
|
|
"Testing PreparedGeometry support."
|
|
# Creating a simple multipolygon and getting a prepared version.
|
|
mpoly = GEOSGeometry('MULTIPOLYGON(((0 0,0 5,5 5,5 0,0 0)),((5 5,5 10,10 10,10 5,5 5)))')
|
|
prep = mpoly.prepared
|
|
|
|
# A set of test points.
|
|
pnts = [Point(5, 5), Point(7.5, 7.5), Point(2.5, 7.5)]
|
|
covers = [True, True, False] # No `covers` op for regular GEOS geoms.
|
|
for pnt, c in zip(pnts, covers):
|
|
# Results should be the same (but faster)
|
|
self.assertEqual(mpoly.contains(pnt), prep.contains(pnt))
|
|
self.assertEqual(mpoly.intersects(pnt), prep.intersects(pnt))
|
|
self.assertEqual(c, prep.covers(pnt))
|
|
|
|
self.assertTrue(prep.crosses(fromstr('LINESTRING(1 1, 15 15)')))
|
|
self.assertTrue(prep.disjoint(Point(-5, -5)))
|
|
poly = Polygon(((-1, -1), (1, 1), (1, 0), (-1, -1)))
|
|
self.assertTrue(prep.overlaps(poly))
|
|
poly = Polygon(((-5, 0), (-5, 5), (0, 5), (-5, 0)))
|
|
self.assertTrue(prep.touches(poly))
|
|
poly = Polygon(((-1, -1), (-1, 11), (11, 11), (11, -1), (-1, -1)))
|
|
self.assertTrue(prep.within(poly))
|
|
|
|
# Original geometry deletion should not crash the prepared one (#21662)
|
|
del mpoly
|
|
self.assertTrue(prep.covers(Point(5, 5)))
|
|
|
|
def test_line_merge(self):
|
|
"Testing line merge support"
|
|
ref_geoms = (fromstr('LINESTRING(1 1, 1 1, 3 3)'),
|
|
fromstr('MULTILINESTRING((1 1, 3 3), (3 3, 4 2))'),
|
|
)
|
|
ref_merged = (fromstr('LINESTRING(1 1, 3 3)'),
|
|
fromstr('LINESTRING (1 1, 3 3, 4 2)'),
|
|
)
|
|
for geom, merged in zip(ref_geoms, ref_merged):
|
|
self.assertEqual(merged, geom.merged)
|
|
|
|
def test_valid_reason(self):
|
|
"Testing IsValidReason support"
|
|
|
|
g = GEOSGeometry("POINT(0 0)")
|
|
self.assertTrue(g.valid)
|
|
self.assertIsInstance(g.valid_reason, six.string_types)
|
|
self.assertEqual(g.valid_reason, "Valid Geometry")
|
|
|
|
g = GEOSGeometry("LINESTRING(0 0, 0 0)")
|
|
|
|
self.assertFalse(g.valid)
|
|
self.assertIsInstance(g.valid_reason, six.string_types)
|
|
self.assertTrue(g.valid_reason.startswith("Too few points in geometry component"))
|
|
|
|
@skipUnless(HAS_GEOS, "Geos is required.")
|
|
def test_linearref(self):
|
|
"Testing linear referencing"
|
|
|
|
ls = fromstr('LINESTRING(0 0, 0 10, 10 10, 10 0)')
|
|
mls = fromstr('MULTILINESTRING((0 0, 0 10), (10 0, 10 10))')
|
|
|
|
self.assertEqual(ls.project(Point(0, 20)), 10.0)
|
|
self.assertEqual(ls.project(Point(7, 6)), 24)
|
|
self.assertEqual(ls.project_normalized(Point(0, 20)), 1.0 / 3)
|
|
|
|
self.assertEqual(ls.interpolate(10), Point(0, 10))
|
|
self.assertEqual(ls.interpolate(24), Point(10, 6))
|
|
self.assertEqual(ls.interpolate_normalized(1.0 / 3), Point(0, 10))
|
|
|
|
self.assertEqual(mls.project(Point(0, 20)), 10)
|
|
self.assertEqual(mls.project(Point(7, 6)), 16)
|
|
|
|
self.assertEqual(mls.interpolate(9), Point(0, 9))
|
|
self.assertEqual(mls.interpolate(17), Point(10, 7))
|
|
|
|
def test_geos_version(self):
|
|
"""Testing the GEOS version regular expression."""
|
|
from django.contrib.gis.geos.libgeos import version_regex
|
|
versions = [('3.0.0rc4-CAPI-1.3.3', '3.0.0', '1.3.3'),
|
|
('3.0.0-CAPI-1.4.1', '3.0.0', '1.4.1'),
|
|
('3.4.0dev-CAPI-1.8.0', '3.4.0', '1.8.0'),
|
|
('3.4.0dev-CAPI-1.8.0 r0', '3.4.0', '1.8.0')]
|
|
for v_init, v_geos, v_capi in versions:
|
|
m = version_regex.match(v_init)
|
|
self.assertTrue(m, msg="Unable to parse the version string '%s'" % v_init)
|
|
self.assertEqual(m.group('version'), v_geos)
|
|
self.assertEqual(m.group('capi_version'), v_capi)
|
|
|
|
@ignore_warnings(category=RemovedInDjango20Warning)
|
|
def test_deprecated_srid_getters_setters(self):
|
|
p = Point(1, 2, srid=123)
|
|
self.assertEqual(p.get_srid(), p.srid)
|
|
|
|
p.set_srid(321)
|
|
self.assertEqual(p.srid, 321)
|
|
|
|
@ignore_warnings(category=RemovedInDjango20Warning)
|
|
def test_deprecated_point_coordinate_getters_setters(self):
|
|
p = Point(1, 2, 3)
|
|
self.assertEqual((p.get_x(), p.get_y(), p.get_z()), (p.x, p.y, p.z))
|
|
|
|
p.set_x(3)
|
|
p.set_y(2)
|
|
p.set_z(1)
|
|
self.assertEqual((p.x, p.y, p.z), (3, 2, 1))
|
|
|
|
@ignore_warnings(category=RemovedInDjango20Warning)
|
|
def test_deprecated_point_tuple_getters_setters(self):
|
|
p = Point(1, 2, 3)
|
|
self.assertEqual(p.get_coords(), (p.x, p.y, p.z))
|
|
|
|
p.set_coords((3, 2, 1))
|
|
self.assertEqual(p.get_coords(), (3, 2, 1))
|