781 lines
36 KiB
Python
781 lines
36 KiB
Python
from __future__ import absolute_import
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import re
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import unittest
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from unittest import skipUnless
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from django.db import connection
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from django.contrib.gis import gdal
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from django.contrib.gis.geos import HAS_GEOS
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from django.contrib.gis.tests.utils import (
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HAS_SPATIAL_DB, no_mysql, no_oracle, no_spatialite,
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mysql, oracle, postgis, spatialite)
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from django.test import TestCase
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from django.utils import six
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if HAS_GEOS:
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from django.contrib.gis.geos import (fromstr, GEOSGeometry,
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Point, LineString, LinearRing, Polygon, GeometryCollection)
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from .models import Country, City, PennsylvaniaCity, State, Track
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if HAS_GEOS and not spatialite:
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from .models import Feature, MinusOneSRID
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def postgis_bug_version():
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spatial_version = getattr(connection.ops, "spatial_version", (0,0,0))
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return spatial_version and (2, 0, 0) <= spatial_version <= (2, 0, 1)
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@skipUnless(HAS_GEOS and HAS_SPATIAL_DB, "Geos and spatial db are required.")
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class GeoModelTest(TestCase):
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def test_fixtures(self):
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"Testing geographic model initialization from fixtures."
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# Ensuring that data was loaded from initial data fixtures.
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self.assertEqual(2, Country.objects.count())
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self.assertEqual(8, City.objects.count())
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self.assertEqual(2, State.objects.count())
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def test_proxy(self):
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"Testing Lazy-Geometry support (using the GeometryProxy)."
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## Testing on a Point
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pnt = Point(0, 0)
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nullcity = City(name='NullCity', point=pnt)
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nullcity.save()
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# Making sure TypeError is thrown when trying to set with an
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# incompatible type.
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for bad in [5, 2.0, LineString((0, 0), (1, 1))]:
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try:
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nullcity.point = bad
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except TypeError:
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pass
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else:
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self.fail('Should throw a TypeError')
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# Now setting with a compatible GEOS Geometry, saving, and ensuring
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# the save took, notice no SRID is explicitly set.
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new = Point(5, 23)
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nullcity.point = new
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# Ensuring that the SRID is automatically set to that of the
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# field after assignment, but before saving.
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self.assertEqual(4326, nullcity.point.srid)
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nullcity.save()
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# Ensuring the point was saved correctly after saving
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self.assertEqual(new, City.objects.get(name='NullCity').point)
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# Setting the X and Y of the Point
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nullcity.point.x = 23
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nullcity.point.y = 5
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# Checking assignments pre & post-save.
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self.assertNotEqual(Point(23, 5), City.objects.get(name='NullCity').point)
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nullcity.save()
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self.assertEqual(Point(23, 5), City.objects.get(name='NullCity').point)
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nullcity.delete()
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## Testing on a Polygon
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shell = LinearRing((0, 0), (0, 100), (100, 100), (100, 0), (0, 0))
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inner = LinearRing((40, 40), (40, 60), (60, 60), (60, 40), (40, 40))
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# Creating a State object using a built Polygon
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ply = Polygon(shell, inner)
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nullstate = State(name='NullState', poly=ply)
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self.assertEqual(4326, nullstate.poly.srid) # SRID auto-set from None
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nullstate.save()
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ns = State.objects.get(name='NullState')
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self.assertEqual(ply, ns.poly)
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# Testing the `ogr` and `srs` lazy-geometry properties.
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if gdal.HAS_GDAL:
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self.assertEqual(True, isinstance(ns.poly.ogr, gdal.OGRGeometry))
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self.assertEqual(ns.poly.wkb, ns.poly.ogr.wkb)
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self.assertEqual(True, isinstance(ns.poly.srs, gdal.SpatialReference))
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self.assertEqual('WGS 84', ns.poly.srs.name)
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# Changing the interior ring on the poly attribute.
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new_inner = LinearRing((30, 30), (30, 70), (70, 70), (70, 30), (30, 30))
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ns.poly[1] = new_inner
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ply[1] = new_inner
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self.assertEqual(4326, ns.poly.srid)
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ns.save()
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self.assertEqual(ply, State.objects.get(name='NullState').poly)
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ns.delete()
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@no_mysql
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def test_lookup_insert_transform(self):
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"Testing automatic transform for lookups and inserts."
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# San Antonio in 'WGS84' (SRID 4326)
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sa_4326 = 'POINT (-98.493183 29.424170)'
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wgs_pnt = fromstr(sa_4326, srid=4326) # Our reference point in WGS84
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# Oracle doesn't have SRID 3084, using 41157.
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if oracle:
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# San Antonio in 'Texas 4205, Southern Zone (1983, meters)' (SRID 41157)
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# Used the following Oracle SQL to get this value:
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# SELECT SDO_UTIL.TO_WKTGEOMETRY(SDO_CS.TRANSFORM(SDO_GEOMETRY('POINT (-98.493183 29.424170)', 4326), 41157)) FROM DUAL;
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nad_wkt = 'POINT (300662.034646583 5416427.45974934)'
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nad_srid = 41157
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else:
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# San Antonio in 'NAD83(HARN) / Texas Centric Lambert Conformal' (SRID 3084)
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nad_wkt = 'POINT (1645978.362408288754523 6276356.025927528738976)' # Used ogr.py in gdal 1.4.1 for this transform
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nad_srid = 3084
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# Constructing & querying with a point from a different SRID. Oracle
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# `SDO_OVERLAPBDYINTERSECT` operates differently from
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# `ST_Intersects`, so contains is used instead.
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nad_pnt = fromstr(nad_wkt, srid=nad_srid)
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if oracle:
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tx = Country.objects.get(mpoly__contains=nad_pnt)
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else:
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tx = Country.objects.get(mpoly__intersects=nad_pnt)
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self.assertEqual('Texas', tx.name)
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# Creating San Antonio. Remember the Alamo.
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sa = City.objects.create(name='San Antonio', point=nad_pnt)
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# Now verifying that San Antonio was transformed correctly
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sa = City.objects.get(name='San Antonio')
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self.assertAlmostEqual(wgs_pnt.x, sa.point.x, 6)
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self.assertAlmostEqual(wgs_pnt.y, sa.point.y, 6)
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# If the GeometryField SRID is -1, then we shouldn't perform any
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# transformation if the SRID of the input geometry is different.
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# SpatiaLite does not support missing SRID values.
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if not spatialite:
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m1 = MinusOneSRID(geom=Point(17, 23, srid=4326))
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m1.save()
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self.assertEqual(-1, m1.geom.srid)
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def test_createnull(self):
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"Testing creating a model instance and the geometry being None"
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c = City()
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self.assertEqual(c.point, None)
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@no_spatialite # SpatiaLite does not support abstract geometry columns
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def test_geometryfield(self):
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"Testing the general GeometryField."
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Feature(name='Point', geom=Point(1, 1)).save()
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Feature(name='LineString', geom=LineString((0, 0), (1, 1), (5, 5))).save()
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Feature(name='Polygon', geom=Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0)))).save()
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Feature(name='GeometryCollection',
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geom=GeometryCollection(Point(2, 2), LineString((0, 0), (2, 2)),
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Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0))))).save()
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f_1 = Feature.objects.get(name='Point')
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self.assertEqual(True, isinstance(f_1.geom, Point))
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self.assertEqual((1.0, 1.0), f_1.geom.tuple)
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f_2 = Feature.objects.get(name='LineString')
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self.assertEqual(True, isinstance(f_2.geom, LineString))
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self.assertEqual(((0.0, 0.0), (1.0, 1.0), (5.0, 5.0)), f_2.geom.tuple)
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f_3 = Feature.objects.get(name='Polygon')
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self.assertEqual(True, isinstance(f_3.geom, Polygon))
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f_4 = Feature.objects.get(name='GeometryCollection')
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self.assertEqual(True, isinstance(f_4.geom, GeometryCollection))
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self.assertEqual(f_3.geom, f_4.geom[2])
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@no_mysql
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def test_inherited_geofields(self):
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"Test GeoQuerySet methods on inherited Geometry fields."
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# Creating a Pennsylvanian city.
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mansfield = PennsylvaniaCity.objects.create(name='Mansfield', county='Tioga', point='POINT(-77.071445 41.823881)')
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# All transformation SQL will need to be performed on the
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# _parent_ table.
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qs = PennsylvaniaCity.objects.transform(32128)
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self.assertEqual(1, qs.count())
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for pc in qs: self.assertEqual(32128, pc.point.srid)
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def test_raw_sql_query(self):
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"Testing raw SQL query."
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cities1 = City.objects.all()
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# Only PostGIS would support a 'select *' query because of its recognized
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# HEXEWKB format for geometry fields
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as_text = 'ST_AsText' if postgis else 'asText'
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cities2 = City.objects.raw('select id, name, %s(point) from geoapp_city' % as_text)
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self.assertEqual(len(cities1), len(list(cities2)))
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self.assertTrue(isinstance(cities2[0].point, Point))
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@skipUnless(HAS_GEOS and HAS_SPATIAL_DB, "Geos and spatial db are required.")
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class GeoLookupTest(TestCase):
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@no_mysql
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def test_disjoint_lookup(self):
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"Testing the `disjoint` lookup type."
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ptown = City.objects.get(name='Pueblo')
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qs1 = City.objects.filter(point__disjoint=ptown.point)
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self.assertEqual(7, qs1.count())
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qs2 = State.objects.filter(poly__disjoint=ptown.point)
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self.assertEqual(1, qs2.count())
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self.assertEqual('Kansas', qs2[0].name)
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def test_contains_contained_lookups(self):
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"Testing the 'contained', 'contains', and 'bbcontains' lookup types."
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# Getting Texas, yes we were a country -- once ;)
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texas = Country.objects.get(name='Texas')
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# Seeing what cities are in Texas, should get Houston and Dallas,
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# and Oklahoma City because 'contained' only checks on the
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# _bounding box_ of the Geometries.
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if not oracle:
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qs = City.objects.filter(point__contained=texas.mpoly)
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self.assertEqual(3, qs.count())
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cities = ['Houston', 'Dallas', 'Oklahoma City']
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for c in qs: self.assertEqual(True, c.name in cities)
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# Pulling out some cities.
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houston = City.objects.get(name='Houston')
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wellington = City.objects.get(name='Wellington')
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pueblo = City.objects.get(name='Pueblo')
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okcity = City.objects.get(name='Oklahoma City')
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lawrence = City.objects.get(name='Lawrence')
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# Now testing contains on the countries using the points for
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# Houston and Wellington.
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tx = Country.objects.get(mpoly__contains=houston.point) # Query w/GEOSGeometry
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nz = Country.objects.get(mpoly__contains=wellington.point.hex) # Query w/EWKBHEX
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self.assertEqual('Texas', tx.name)
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self.assertEqual('New Zealand', nz.name)
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# Spatialite 2.3 thinks that Lawrence is in Puerto Rico (a NULL geometry).
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if not spatialite:
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ks = State.objects.get(poly__contains=lawrence.point)
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self.assertEqual('Kansas', ks.name)
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# Pueblo and Oklahoma City (even though OK City is within the bounding box of Texas)
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# are not contained in Texas or New Zealand.
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self.assertEqual(0, len(Country.objects.filter(mpoly__contains=pueblo.point))) # Query w/GEOSGeometry object
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self.assertEqual((mysql and 1) or 0,
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len(Country.objects.filter(mpoly__contains=okcity.point.wkt))) # Qeury w/WKT
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# OK City is contained w/in bounding box of Texas.
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if not oracle:
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qs = Country.objects.filter(mpoly__bbcontains=okcity.point)
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self.assertEqual(1, len(qs))
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self.assertEqual('Texas', qs[0].name)
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# Only PostGIS has `left` and `right` lookup types.
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@no_mysql
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@no_oracle
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@no_spatialite
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def test_left_right_lookups(self):
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"Testing the 'left' and 'right' lookup types."
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# Left: A << B => true if xmax(A) < xmin(B)
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# Right: A >> B => true if xmin(A) > xmax(B)
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# See: BOX2D_left() and BOX2D_right() in lwgeom_box2dfloat4.c in PostGIS source.
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# Getting the borders for Colorado & Kansas
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co_border = State.objects.get(name='Colorado').poly
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ks_border = State.objects.get(name='Kansas').poly
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# Note: Wellington has an 'X' value of 174, so it will not be considered
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# to the left of CO.
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# These cities should be strictly to the right of the CO border.
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cities = ['Houston', 'Dallas', 'Oklahoma City',
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'Lawrence', 'Chicago', 'Wellington']
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qs = City.objects.filter(point__right=co_border)
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self.assertEqual(6, len(qs))
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for c in qs: self.assertEqual(True, c.name in cities)
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# These cities should be strictly to the right of the KS border.
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cities = ['Chicago', 'Wellington']
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qs = City.objects.filter(point__right=ks_border)
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self.assertEqual(2, len(qs))
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for c in qs: self.assertEqual(True, c.name in cities)
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# Note: Wellington has an 'X' value of 174, so it will not be considered
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# to the left of CO.
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vic = City.objects.get(point__left=co_border)
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self.assertEqual('Victoria', vic.name)
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cities = ['Pueblo', 'Victoria']
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qs = City.objects.filter(point__left=ks_border)
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self.assertEqual(2, len(qs))
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for c in qs: self.assertEqual(True, c.name in cities)
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# The left/right lookup tests are known failures on PostGIS 2.0/2.0.1
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# http://trac.osgeo.org/postgis/ticket/2035
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if postgis_bug_version():
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test_left_right_lookups = unittest.expectedFailure(test_left_right_lookups)
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def test_equals_lookups(self):
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"Testing the 'same_as' and 'equals' lookup types."
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pnt = fromstr('POINT (-95.363151 29.763374)', srid=4326)
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c1 = City.objects.get(point=pnt)
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c2 = City.objects.get(point__same_as=pnt)
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c3 = City.objects.get(point__equals=pnt)
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for c in [c1, c2, c3]: self.assertEqual('Houston', c.name)
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@no_mysql
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def test_null_geometries(self):
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"Testing NULL geometry support, and the `isnull` lookup type."
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# Creating a state with a NULL boundary.
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State.objects.create(name='Puerto Rico')
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# Querying for both NULL and Non-NULL values.
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nullqs = State.objects.filter(poly__isnull=True)
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validqs = State.objects.filter(poly__isnull=False)
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# Puerto Rico should be NULL (it's a commonwealth unincorporated territory)
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self.assertEqual(1, len(nullqs))
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self.assertEqual('Puerto Rico', nullqs[0].name)
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# The valid states should be Colorado & Kansas
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self.assertEqual(2, len(validqs))
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state_names = [s.name for s in validqs]
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self.assertEqual(True, 'Colorado' in state_names)
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self.assertEqual(True, 'Kansas' in state_names)
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# Saving another commonwealth w/a NULL geometry.
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nmi = State.objects.create(name='Northern Mariana Islands', poly=None)
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self.assertEqual(nmi.poly, None)
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# Assigning a geomery and saving -- then UPDATE back to NULL.
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nmi.poly = 'POLYGON((0 0,1 0,1 1,1 0,0 0))'
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nmi.save()
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State.objects.filter(name='Northern Mariana Islands').update(poly=None)
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self.assertEqual(None, State.objects.get(name='Northern Mariana Islands').poly)
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@no_mysql
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def test_relate_lookup(self):
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"Testing the 'relate' lookup type."
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# To make things more interesting, we will have our Texas reference point in
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# different SRIDs.
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pnt1 = fromstr('POINT (649287.0363174 4177429.4494686)', srid=2847)
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pnt2 = fromstr('POINT(-98.4919715741052 29.4333344025053)', srid=4326)
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# Not passing in a geometry as first param shoud
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# raise a type error when initializing the GeoQuerySet
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self.assertRaises(ValueError, Country.objects.filter, mpoly__relate=(23, 'foo'))
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# Making sure the right exception is raised for the given
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# bad arguments.
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for bad_args, e in [((pnt1, 0), ValueError), ((pnt2, 'T*T***FF*', 0), ValueError)]:
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qs = Country.objects.filter(mpoly__relate=bad_args)
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self.assertRaises(e, qs.count)
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# Relate works differently for the different backends.
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if postgis or spatialite:
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contains_mask = 'T*T***FF*'
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within_mask = 'T*F**F***'
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intersects_mask = 'T********'
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elif oracle:
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contains_mask = 'contains'
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within_mask = 'inside'
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# TODO: This is not quite the same as the PostGIS mask above
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intersects_mask = 'overlapbdyintersect'
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# Testing contains relation mask.
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self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, contains_mask)).name)
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self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, contains_mask)).name)
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# Testing within relation mask.
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ks = State.objects.get(name='Kansas')
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self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, within_mask)).name)
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# Testing intersection relation mask.
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if not oracle:
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self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, intersects_mask)).name)
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self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, intersects_mask)).name)
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self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, intersects_mask)).name)
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@skipUnless(HAS_GEOS and HAS_SPATIAL_DB, "Geos and spatial db are required.")
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class GeoQuerySetTest(TestCase):
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# Please keep the tests in GeoQuerySet method's alphabetic order
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@no_mysql
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def test_centroid(self):
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"Testing the `centroid` GeoQuerySet method."
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qs = State.objects.exclude(poly__isnull=True).centroid()
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if oracle:
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tol = 0.1
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elif spatialite:
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tol = 0.000001
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else:
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tol = 0.000000001
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for s in qs:
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self.assertEqual(True, s.poly.centroid.equals_exact(s.centroid, tol))
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@no_mysql
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def test_diff_intersection_union(self):
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"Testing the `difference`, `intersection`, `sym_difference`, and `union` GeoQuerySet methods."
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geom = Point(5, 23)
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tol = 1
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qs = Country.objects.all().difference(geom).sym_difference(geom).union(geom)
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# XXX For some reason SpatiaLite does something screwey with the Texas geometry here. Also,
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# XXX it doesn't like the null intersection.
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if spatialite:
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qs = qs.exclude(name='Texas')
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else:
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qs = qs.intersection(geom)
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for c in qs:
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if oracle:
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# Should be able to execute the queries; however, they won't be the same
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# as GEOS (because Oracle doesn't use GEOS internally like PostGIS or
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# SpatiaLite).
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pass
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else:
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self.assertEqual(c.mpoly.difference(geom), c.difference)
|
|
if not spatialite:
|
|
self.assertEqual(c.mpoly.intersection(geom), c.intersection)
|
|
self.assertEqual(c.mpoly.sym_difference(geom), c.sym_difference)
|
|
self.assertEqual(c.mpoly.union(geom), c.union)
|
|
|
|
@no_mysql
|
|
@no_spatialite # SpatiaLite does not have an Extent function
|
|
def test_extent(self):
|
|
"Testing the `extent` GeoQuerySet method."
|
|
# Reference query:
|
|
# `SELECT ST_extent(point) FROM geoapp_city WHERE (name='Houston' or name='Dallas');`
|
|
# => BOX(-96.8016128540039 29.7633724212646,-95.3631439208984 32.7820587158203)
|
|
expected = (-96.8016128540039, 29.7633724212646, -95.3631439208984, 32.782058715820)
|
|
|
|
qs = City.objects.filter(name__in=('Houston', 'Dallas'))
|
|
extent = qs.extent()
|
|
|
|
for val, exp in zip(extent, expected):
|
|
self.assertAlmostEqual(exp, val, 4)
|
|
|
|
@no_mysql
|
|
@no_oracle
|
|
@no_spatialite
|
|
def test_force_rhr(self):
|
|
"Testing GeoQuerySet.force_rhr()."
|
|
rings = ( ( (0, 0), (5, 0), (0, 5), (0, 0) ),
|
|
( (1, 1), (1, 3), (3, 1), (1, 1) ),
|
|
)
|
|
rhr_rings = ( ( (0, 0), (0, 5), (5, 0), (0, 0) ),
|
|
( (1, 1), (3, 1), (1, 3), (1, 1) ),
|
|
)
|
|
State.objects.create(name='Foo', poly=Polygon(*rings))
|
|
s = State.objects.force_rhr().get(name='Foo')
|
|
self.assertEqual(rhr_rings, s.force_rhr.coords)
|
|
|
|
@no_mysql
|
|
@no_oracle
|
|
@no_spatialite
|
|
def test_geohash(self):
|
|
"Testing GeoQuerySet.geohash()."
|
|
if not connection.ops.geohash: return
|
|
# Reference query:
|
|
# SELECT ST_GeoHash(point) FROM geoapp_city WHERE name='Houston';
|
|
# SELECT ST_GeoHash(point, 5) FROM geoapp_city WHERE name='Houston';
|
|
ref_hash = '9vk1mfq8jx0c8e0386z6'
|
|
h1 = City.objects.geohash().get(name='Houston')
|
|
h2 = City.objects.geohash(precision=5).get(name='Houston')
|
|
self.assertEqual(ref_hash, h1.geohash)
|
|
self.assertEqual(ref_hash[:5], h2.geohash)
|
|
|
|
def test_geojson(self):
|
|
"Testing GeoJSON output from the database using GeoQuerySet.geojson()."
|
|
# Only PostGIS 1.3.4+ and SpatiaLite 3.0+ support GeoJSON.
|
|
if not connection.ops.geojson:
|
|
self.assertRaises(NotImplementedError, Country.objects.all().geojson, field_name='mpoly')
|
|
return
|
|
|
|
pueblo_json = '{"type":"Point","coordinates":[-104.609252,38.255001]}'
|
|
houston_json = '{"type":"Point","crs":{"type":"name","properties":{"name":"EPSG:4326"}},"coordinates":[-95.363151,29.763374]}'
|
|
victoria_json = '{"type":"Point","bbox":[-123.30519600,48.46261100,-123.30519600,48.46261100],"coordinates":[-123.305196,48.462611]}'
|
|
chicago_json = '{"type":"Point","crs":{"type":"name","properties":{"name":"EPSG:4326"}},"bbox":[-87.65018,41.85039,-87.65018,41.85039],"coordinates":[-87.65018,41.85039]}'
|
|
if postgis and connection.ops.spatial_version < (1, 4, 0):
|
|
pueblo_json = '{"type":"Point","coordinates":[-104.60925200,38.25500100]}'
|
|
houston_json = '{"type":"Point","crs":{"type":"EPSG","properties":{"EPSG":4326}},"coordinates":[-95.36315100,29.76337400]}'
|
|
victoria_json = '{"type":"Point","bbox":[-123.30519600,48.46261100,-123.30519600,48.46261100],"coordinates":[-123.30519600,48.46261100]}'
|
|
elif spatialite:
|
|
victoria_json = '{"type":"Point","bbox":[-123.305196,48.462611,-123.305196,48.462611],"coordinates":[-123.305196,48.462611]}'
|
|
|
|
# Precision argument should only be an integer
|
|
self.assertRaises(TypeError, City.objects.geojson, precision='foo')
|
|
|
|
# Reference queries and values.
|
|
# SELECT ST_AsGeoJson("geoapp_city"."point", 8, 0) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Pueblo';
|
|
self.assertEqual(pueblo_json, City.objects.geojson().get(name='Pueblo').geojson)
|
|
|
|
# 1.3.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 1) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Houston';
|
|
# 1.4.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 2) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Houston';
|
|
# This time we want to include the CRS by using the `crs` keyword.
|
|
self.assertEqual(houston_json, City.objects.geojson(crs=True, model_att='json').get(name='Houston').json)
|
|
|
|
# 1.3.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 2) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Victoria';
|
|
# 1.4.x: SELECT ST_AsGeoJson("geoapp_city"."point", 8, 1) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Houston';
|
|
# This time we include the bounding box by using the `bbox` keyword.
|
|
self.assertEqual(victoria_json, City.objects.geojson(bbox=True).get(name='Victoria').geojson)
|
|
|
|
# 1.(3|4).x: SELECT ST_AsGeoJson("geoapp_city"."point", 5, 3) FROM "geoapp_city" WHERE "geoapp_city"."name" = 'Chicago';
|
|
# Finally, we set every available keyword.
|
|
self.assertEqual(chicago_json, City.objects.geojson(bbox=True, crs=True, precision=5).get(name='Chicago').geojson)
|
|
|
|
def test_gml(self):
|
|
"Testing GML output from the database using GeoQuerySet.gml()."
|
|
if mysql or (spatialite and not connection.ops.gml) :
|
|
self.assertRaises(NotImplementedError, Country.objects.all().gml, field_name='mpoly')
|
|
return
|
|
|
|
# Should throw a TypeError when tyring to obtain GML from a
|
|
# non-geometry field.
|
|
qs = City.objects.all()
|
|
self.assertRaises(TypeError, qs.gml, field_name='name')
|
|
ptown1 = City.objects.gml(field_name='point', precision=9).get(name='Pueblo')
|
|
ptown2 = City.objects.gml(precision=9).get(name='Pueblo')
|
|
|
|
if oracle:
|
|
# No precision parameter for Oracle :-/
|
|
gml_regex = re.compile(r'^<gml:Point srsName="SDO:4326" xmlns:gml="http://www.opengis.net/gml"><gml:coordinates decimal="\." cs="," ts=" ">-104.60925\d+,38.25500\d+ </gml:coordinates></gml:Point>')
|
|
elif spatialite and connection.ops.spatial_version < (3, 0, 0):
|
|
# Spatialite before 3.0 has extra colon in SrsName
|
|
gml_regex = re.compile(r'^<gml:Point SrsName="EPSG::4326"><gml:coordinates decimal="\." cs="," ts=" ">-104.609251\d+,38.255001</gml:coordinates></gml:Point>')
|
|
else:
|
|
gml_regex = re.compile(r'^<gml:Point srsName="EPSG:4326"><gml:coordinates>-104\.60925\d+,38\.255001</gml:coordinates></gml:Point>')
|
|
|
|
for ptown in [ptown1, ptown2]:
|
|
self.assertTrue(gml_regex.match(ptown.gml))
|
|
|
|
# PostGIS < 1.5 doesn't include dimension im GMLv3 output.
|
|
if postgis and connection.ops.spatial_version >= (1, 5, 0):
|
|
self.assertIn('<gml:pos srsDimension="2">',
|
|
City.objects.gml(version=3).get(name='Pueblo').gml)
|
|
|
|
def test_kml(self):
|
|
"Testing KML output from the database using GeoQuerySet.kml()."
|
|
# Only PostGIS and Spatialite (>=2.4.0-RC4) support KML serialization
|
|
if not (postgis or (spatialite and connection.ops.kml)):
|
|
self.assertRaises(NotImplementedError, State.objects.all().kml, field_name='poly')
|
|
return
|
|
|
|
# Should throw a TypeError when trying to obtain KML from a
|
|
# non-geometry field.
|
|
qs = City.objects.all()
|
|
self.assertRaises(TypeError, qs.kml, 'name')
|
|
|
|
# The reference KML depends on the version of PostGIS used
|
|
# (the output stopped including altitude in 1.3.3).
|
|
if connection.ops.spatial_version >= (1, 3, 3):
|
|
ref_kml = '<Point><coordinates>-104.609252,38.255001</coordinates></Point>'
|
|
else:
|
|
ref_kml = '<Point><coordinates>-104.609252,38.255001,0</coordinates></Point>'
|
|
|
|
# Ensuring the KML is as expected.
|
|
ptown1 = City.objects.kml(field_name='point', precision=9).get(name='Pueblo')
|
|
ptown2 = City.objects.kml(precision=9).get(name='Pueblo')
|
|
for ptown in [ptown1, ptown2]:
|
|
self.assertEqual(ref_kml, ptown.kml)
|
|
|
|
# Only PostGIS has support for the MakeLine aggregate.
|
|
@no_mysql
|
|
@no_oracle
|
|
@no_spatialite
|
|
def test_make_line(self):
|
|
"Testing the `make_line` GeoQuerySet method."
|
|
# Ensuring that a `TypeError` is raised on models without PointFields.
|
|
self.assertRaises(TypeError, State.objects.make_line)
|
|
self.assertRaises(TypeError, Country.objects.make_line)
|
|
# Reference query:
|
|
# SELECT AsText(ST_MakeLine(geoapp_city.point)) FROM geoapp_city;
|
|
ref_line = GEOSGeometry('LINESTRING(-95.363151 29.763374,-96.801611 32.782057,-97.521157 34.464642,174.783117 -41.315268,-104.609252 38.255001,-95.23506 38.971823,-87.650175 41.850385,-123.305196 48.462611)', srid=4326)
|
|
self.assertEqual(ref_line, City.objects.make_line())
|
|
|
|
@no_mysql
|
|
def test_num_geom(self):
|
|
"Testing the `num_geom` GeoQuerySet method."
|
|
# Both 'countries' only have two geometries.
|
|
for c in Country.objects.num_geom():
|
|
self.assertEqual(2, c.num_geom)
|
|
|
|
for c in City.objects.filter(point__isnull=False).num_geom():
|
|
# Oracle and PostGIS 2.0+ will return 1 for the number of
|
|
# geometries on non-collections, whereas PostGIS < 2.0.0
|
|
# will return None.
|
|
if postgis and connection.ops.spatial_version < (2, 0, 0):
|
|
self.assertIsNone(c.num_geom)
|
|
else:
|
|
self.assertEqual(1, c.num_geom)
|
|
|
|
@no_mysql
|
|
@no_spatialite # SpatiaLite can only count vertices in LineStrings
|
|
def test_num_points(self):
|
|
"Testing the `num_points` GeoQuerySet method."
|
|
for c in Country.objects.num_points():
|
|
self.assertEqual(c.mpoly.num_points, c.num_points)
|
|
|
|
if not oracle:
|
|
# Oracle cannot count vertices in Point geometries.
|
|
for c in City.objects.num_points(): self.assertEqual(1, c.num_points)
|
|
|
|
@no_mysql
|
|
def test_point_on_surface(self):
|
|
"Testing the `point_on_surface` GeoQuerySet method."
|
|
# Reference values.
|
|
if oracle:
|
|
# SELECT SDO_UTIL.TO_WKTGEOMETRY(SDO_GEOM.SDO_POINTONSURFACE(GEOAPP_COUNTRY.MPOLY, 0.05)) FROM GEOAPP_COUNTRY;
|
|
ref = {'New Zealand' : fromstr('POINT (174.616364 -36.100861)', srid=4326),
|
|
'Texas' : fromstr('POINT (-103.002434 36.500397)', srid=4326),
|
|
}
|
|
|
|
elif postgis or spatialite:
|
|
# Using GEOSGeometry to compute the reference point on surface values
|
|
# -- since PostGIS also uses GEOS these should be the same.
|
|
ref = {'New Zealand' : Country.objects.get(name='New Zealand').mpoly.point_on_surface,
|
|
'Texas' : Country.objects.get(name='Texas').mpoly.point_on_surface
|
|
}
|
|
|
|
for c in Country.objects.point_on_surface():
|
|
if spatialite:
|
|
# XXX This seems to be a WKT-translation-related precision issue?
|
|
tol = 0.00001
|
|
else:
|
|
tol = 0.000000001
|
|
self.assertEqual(True, ref[c.name].equals_exact(c.point_on_surface, tol))
|
|
|
|
@no_mysql
|
|
@no_spatialite
|
|
def test_reverse_geom(self):
|
|
"Testing GeoQuerySet.reverse_geom()."
|
|
coords = [ (-95.363151, 29.763374), (-95.448601, 29.713803) ]
|
|
Track.objects.create(name='Foo', line=LineString(coords))
|
|
t = Track.objects.reverse_geom().get(name='Foo')
|
|
coords.reverse()
|
|
self.assertEqual(tuple(coords), t.reverse_geom.coords)
|
|
if oracle:
|
|
self.assertRaises(TypeError, State.objects.reverse_geom)
|
|
|
|
@no_mysql
|
|
@no_oracle
|
|
def test_scale(self):
|
|
"Testing the `scale` GeoQuerySet method."
|
|
xfac, yfac = 2, 3
|
|
tol = 5 # XXX The low precision tolerance is for SpatiaLite
|
|
qs = Country.objects.scale(xfac, yfac, model_att='scaled')
|
|
for c in qs:
|
|
for p1, p2 in zip(c.mpoly, c.scaled):
|
|
for r1, r2 in zip(p1, p2):
|
|
for c1, c2 in zip(r1.coords, r2.coords):
|
|
self.assertAlmostEqual(c1[0] * xfac, c2[0], tol)
|
|
self.assertAlmostEqual(c1[1] * yfac, c2[1], tol)
|
|
|
|
@no_mysql
|
|
@no_oracle
|
|
@no_spatialite
|
|
def test_snap_to_grid(self):
|
|
"Testing GeoQuerySet.snap_to_grid()."
|
|
# Let's try and break snap_to_grid() with bad combinations of arguments.
|
|
for bad_args in ((), range(3), range(5)):
|
|
self.assertRaises(ValueError, Country.objects.snap_to_grid, *bad_args)
|
|
for bad_args in (('1.0',), (1.0, None), tuple(map(six.text_type, range(4)))):
|
|
self.assertRaises(TypeError, Country.objects.snap_to_grid, *bad_args)
|
|
|
|
# Boundary for San Marino, courtesy of Bjorn Sandvik of thematicmapping.org
|
|
# from the world borders dataset he provides.
|
|
wkt = ('MULTIPOLYGON(((12.41580 43.95795,12.45055 43.97972,12.45389 43.98167,'
|
|
'12.46250 43.98472,12.47167 43.98694,12.49278 43.98917,'
|
|
'12.50555 43.98861,12.51000 43.98694,12.51028 43.98277,'
|
|
'12.51167 43.94333,12.51056 43.93916,12.49639 43.92333,'
|
|
'12.49500 43.91472,12.48778 43.90583,12.47444 43.89722,'
|
|
'12.46472 43.89555,12.45917 43.89611,12.41639 43.90472,'
|
|
'12.41222 43.90610,12.40782 43.91366,12.40389 43.92667,'
|
|
'12.40500 43.94833,12.40889 43.95499,12.41580 43.95795)))')
|
|
sm = Country.objects.create(name='San Marino', mpoly=fromstr(wkt))
|
|
|
|
# Because floating-point arithmetic isn't exact, we set a tolerance
|
|
# to pass into GEOS `equals_exact`.
|
|
tol = 0.000000001
|
|
|
|
# SELECT AsText(ST_SnapToGrid("geoapp_country"."mpoly", 0.1)) FROM "geoapp_country" WHERE "geoapp_country"."name" = 'San Marino';
|
|
ref = fromstr('MULTIPOLYGON(((12.4 44,12.5 44,12.5 43.9,12.4 43.9,12.4 44)))')
|
|
self.assertTrue(ref.equals_exact(Country.objects.snap_to_grid(0.1).get(name='San Marino').snap_to_grid, tol))
|
|
|
|
# SELECT AsText(ST_SnapToGrid("geoapp_country"."mpoly", 0.05, 0.23)) FROM "geoapp_country" WHERE "geoapp_country"."name" = 'San Marino';
|
|
ref = fromstr('MULTIPOLYGON(((12.4 43.93,12.45 43.93,12.5 43.93,12.45 43.93,12.4 43.93)))')
|
|
self.assertTrue(ref.equals_exact(Country.objects.snap_to_grid(0.05, 0.23).get(name='San Marino').snap_to_grid, tol))
|
|
|
|
# SELECT AsText(ST_SnapToGrid("geoapp_country"."mpoly", 0.5, 0.17, 0.05, 0.23)) FROM "geoapp_country" WHERE "geoapp_country"."name" = 'San Marino';
|
|
ref = fromstr('MULTIPOLYGON(((12.4 43.87,12.45 43.87,12.45 44.1,12.5 44.1,12.5 43.87,12.45 43.87,12.4 43.87)))')
|
|
self.assertTrue(ref.equals_exact(Country.objects.snap_to_grid(0.05, 0.23, 0.5, 0.17).get(name='San Marino').snap_to_grid, tol))
|
|
|
|
def test_svg(self):
|
|
"Testing SVG output using GeoQuerySet.svg()."
|
|
if mysql or oracle:
|
|
self.assertRaises(NotImplementedError, City.objects.svg)
|
|
return
|
|
|
|
self.assertRaises(TypeError, City.objects.svg, precision='foo')
|
|
# SELECT AsSVG(geoapp_city.point, 0, 8) FROM geoapp_city WHERE name = 'Pueblo';
|
|
svg1 = 'cx="-104.609252" cy="-38.255001"'
|
|
# Even though relative, only one point so it's practically the same except for
|
|
# the 'c' letter prefix on the x,y values.
|
|
svg2 = svg1.replace('c', '')
|
|
self.assertEqual(svg1, City.objects.svg().get(name='Pueblo').svg)
|
|
self.assertEqual(svg2, City.objects.svg(relative=5).get(name='Pueblo').svg)
|
|
|
|
@no_mysql
|
|
def test_transform(self):
|
|
"Testing the transform() GeoQuerySet method."
|
|
# Pre-transformed points for Houston and Pueblo.
|
|
htown = fromstr('POINT(1947516.83115183 6322297.06040572)', srid=3084)
|
|
ptown = fromstr('POINT(992363.390841912 481455.395105533)', srid=2774)
|
|
prec = 3 # Precision is low due to version variations in PROJ and GDAL.
|
|
|
|
# Asserting the result of the transform operation with the values in
|
|
# the pre-transformed points. Oracle does not have the 3084 SRID.
|
|
if not oracle:
|
|
h = City.objects.transform(htown.srid).get(name='Houston')
|
|
self.assertEqual(3084, h.point.srid)
|
|
self.assertAlmostEqual(htown.x, h.point.x, prec)
|
|
self.assertAlmostEqual(htown.y, h.point.y, prec)
|
|
|
|
p1 = City.objects.transform(ptown.srid, field_name='point').get(name='Pueblo')
|
|
p2 = City.objects.transform(srid=ptown.srid).get(name='Pueblo')
|
|
for p in [p1, p2]:
|
|
self.assertEqual(2774, p.point.srid)
|
|
self.assertAlmostEqual(ptown.x, p.point.x, prec)
|
|
self.assertAlmostEqual(ptown.y, p.point.y, prec)
|
|
|
|
@no_mysql
|
|
@no_oracle
|
|
def test_translate(self):
|
|
"Testing the `translate` GeoQuerySet method."
|
|
xfac, yfac = 5, -23
|
|
qs = Country.objects.translate(xfac, yfac, model_att='translated')
|
|
for c in qs:
|
|
for p1, p2 in zip(c.mpoly, c.translated):
|
|
for r1, r2 in zip(p1, p2):
|
|
for c1, c2 in zip(r1.coords, r2.coords):
|
|
# XXX The low precision is for SpatiaLite
|
|
self.assertAlmostEqual(c1[0] + xfac, c2[0], 5)
|
|
self.assertAlmostEqual(c1[1] + yfac, c2[1], 5)
|
|
|
|
@no_mysql
|
|
def test_unionagg(self):
|
|
"Testing the `unionagg` (aggregate union) GeoQuerySet method."
|
|
tx = Country.objects.get(name='Texas').mpoly
|
|
# Houston, Dallas -- Oracle has different order.
|
|
union1 = fromstr('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374)')
|
|
union2 = fromstr('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374)')
|
|
qs = City.objects.filter(point__within=tx)
|
|
self.assertRaises(TypeError, qs.unionagg, 'name')
|
|
# Using `field_name` keyword argument in one query and specifying an
|
|
# order in the other (which should not be used because this is
|
|
# an aggregate method on a spatial column)
|
|
u1 = qs.unionagg(field_name='point')
|
|
u2 = qs.order_by('name').unionagg()
|
|
tol = 0.00001
|
|
if oracle:
|
|
union = union2
|
|
else:
|
|
union = union1
|
|
self.assertEqual(True, union.equals_exact(u1, tol))
|
|
self.assertEqual(True, union.equals_exact(u2, tol))
|
|
qs = City.objects.filter(name='NotACity')
|
|
self.assertEqual(None, qs.unionagg(field_name='point'))
|