--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/contrib/gis/tests/geoapp/tests.py Tue Oct 14 16:00:59 2008 +0000
@@ -0,0 +1,568 @@
+import os, unittest
+from models import Country, City, State, Feature, MinusOneSRID
+from django.contrib.gis import gdal
+from django.contrib.gis.db.backend import SpatialBackend
+from django.contrib.gis.geos import *
+from django.contrib.gis.measure import Distance
+from django.contrib.gis.tests.utils import no_oracle, no_postgis, oracle, postgis
+
+# TODO: Some tests depend on the success/failure of previous tests, these should
+# be decoupled. This flag is an artifact of this problem, and makes debugging easier;
+# specifically, the DISABLE flag will disables all tests, allowing problem tests to
+# be examined individually.
+DISABLE = False
+
+class GeoModelTest(unittest.TestCase):
+
+ def test01_initial_sql(self):
+ "Testing geographic initial SQL."
+ if DISABLE: return
+ if oracle:
+ # Oracle doesn't allow strings longer than 4000 characters
+ # in SQL files, and I'm stumped on how to use Oracle BFILE's
+ # in PLSQL, so we set up the larger geometries manually, rather
+ # than relying on the initial SQL.
+
+ # Routine for returning the path to the data files.
+ data_dir = os.path.join(os.path.dirname(__file__), 'sql')
+ def get_file(wkt_file):
+ return os.path.join(data_dir, wkt_file)
+
+ State(name='Colorado', poly=fromfile(get_file('co.wkt'))).save()
+ State(name='Kansas', poly=fromfile(get_file('ks.wkt'))).save()
+ Country(name='Texas', mpoly=fromfile(get_file('tx.wkt'))).save()
+ Country(name='New Zealand', mpoly=fromfile(get_file('nz.wkt'))).save()
+
+ # Ensuring that data was loaded from initial SQL.
+ self.assertEqual(2, Country.objects.count())
+ self.assertEqual(8, City.objects.count())
+
+ # Oracle cannot handle NULL geometry values w/certain queries.
+ if oracle: n_state = 2
+ else: n_state = 3
+ self.assertEqual(n_state, State.objects.count())
+
+ def test02_proxy(self):
+ "Testing Lazy-Geometry support (using the GeometryProxy)."
+ if DISABLE: return
+ ## Testing on a Point
+ pnt = Point(0, 0)
+ nullcity = City(name='NullCity', point=pnt)
+ nullcity.save()
+
+ # Making sure TypeError is thrown when trying to set with an
+ # incompatible type.
+ for bad in [5, 2.0, LineString((0, 0), (1, 1))]:
+ try:
+ nullcity.point = bad
+ except TypeError:
+ pass
+ else:
+ self.fail('Should throw a TypeError')
+
+ # Now setting with a compatible GEOS Geometry, saving, and ensuring
+ # the save took, notice no SRID is explicitly set.
+ new = Point(5, 23)
+ nullcity.point = new
+
+ # Ensuring that the SRID is automatically set to that of the
+ # field after assignment, but before saving.
+ self.assertEqual(4326, nullcity.point.srid)
+ nullcity.save()
+
+ # Ensuring the point was saved correctly after saving
+ self.assertEqual(new, City.objects.get(name='NullCity').point)
+
+ # Setting the X and Y of the Point
+ nullcity.point.x = 23
+ nullcity.point.y = 5
+ # Checking assignments pre & post-save.
+ self.assertNotEqual(Point(23, 5), City.objects.get(name='NullCity').point)
+ nullcity.save()
+ self.assertEqual(Point(23, 5), City.objects.get(name='NullCity').point)
+ nullcity.delete()
+
+ ## Testing on a Polygon
+ shell = LinearRing((0, 0), (0, 100), (100, 100), (100, 0), (0, 0))
+ inner = LinearRing((40, 40), (40, 60), (60, 60), (60, 40), (40, 40))
+
+ # Creating a State object using a built Polygon
+ ply = Polygon(shell, inner)
+ nullstate = State(name='NullState', poly=ply)
+ self.assertEqual(4326, nullstate.poly.srid) # SRID auto-set from None
+ nullstate.save()
+
+ ns = State.objects.get(name='NullState')
+ self.assertEqual(ply, ns.poly)
+
+ # Testing the `ogr` and `srs` lazy-geometry properties.
+ if gdal.HAS_GDAL:
+ self.assertEqual(True, isinstance(ns.poly.ogr, gdal.OGRGeometry))
+ self.assertEqual(ns.poly.wkb, ns.poly.ogr.wkb)
+ self.assertEqual(True, isinstance(ns.poly.srs, gdal.SpatialReference))
+ self.assertEqual('WGS 84', ns.poly.srs.name)
+
+ # Changing the interior ring on the poly attribute.
+ new_inner = LinearRing((30, 30), (30, 70), (70, 70), (70, 30), (30, 30))
+ ns.poly[1] = new_inner
+ ply[1] = new_inner
+ self.assertEqual(4326, ns.poly.srid)
+ ns.save()
+ self.assertEqual(ply, State.objects.get(name='NullState').poly)
+ ns.delete()
+
+ @no_oracle # Oracle does not support KML.
+ def test03a_kml(self):
+ "Testing KML output from the database using GeoManager.kml()."
+ if DISABLE: 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).
+ major, minor1, minor2 = SpatialBackend.version
+ ref_kml1 = '<Point><coordinates>-104.609252,38.255001,0</coordinates></Point>'
+ ref_kml2 = '<Point><coordinates>-104.609252,38.255001</coordinates></Point>'
+ if major == 1:
+ if minor1 > 3 or (minor1 == 3 and minor2 >= 3): ref_kml = ref_kml2
+ else: ref_kml = ref_kml1
+ else:
+ ref_kml = ref_kml2
+
+ # 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)
+
+ def test03b_gml(self):
+ "Testing GML output from the database using GeoManager.gml()."
+ if DISABLE: 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 :-/
+ import re
+ gml_regex = re.compile(r'<gml:Point srsName="SDO:4326" xmlns:gml="http://www.opengis.net/gml"><gml:coordinates decimal="\." cs="," ts=" ">-104.60925199\d+,38.25500\d+ </gml:coordinates></gml:Point>')
+ for ptown in [ptown1, ptown2]:
+ self.assertEqual(True, bool(gml_regex.match(ptown.gml)))
+ else:
+ for ptown in [ptown1, ptown2]:
+ self.assertEqual('<gml:Point srsName="EPSG:4326"><gml:coordinates>-104.609252,38.255001</gml:coordinates></gml:Point>', ptown.gml)
+
+ def test04_transform(self):
+ "Testing the transform() GeoManager method."
+ if DISABLE: return
+ # 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_oracle # Most likely can do this in Oracle, however, it is not yet implemented (patches welcome!)
+ def test05_extent(self):
+ "Testing the `extent` GeoQuerySet method."
+ if DISABLE: return
+ # 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, 8)
+
+ @no_oracle
+ def test06_make_line(self):
+ "Testing the `make_line` GeoQuerySet method."
+ if DISABLE: return
+ # 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;
+ self.assertEqual(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),
+ City.objects.make_line())
+
+ def test09_disjoint(self):
+ "Testing the `disjoint` lookup type."
+ if DISABLE: return
+ ptown = City.objects.get(name='Pueblo')
+ qs1 = City.objects.filter(point__disjoint=ptown.point)
+ self.assertEqual(7, qs1.count())
+
+ if not postgis:
+ # TODO: Do NULL columns bork queries on PostGIS? The following
+ # error is encountered:
+ # psycopg2.ProgrammingError: invalid memory alloc request size 4294957297
+ qs2 = State.objects.filter(poly__disjoint=ptown.point)
+ self.assertEqual(1, qs2.count())
+ self.assertEqual('Kansas', qs2[0].name)
+
+ def test10_contains_contained(self):
+ "Testing the 'contained', 'contains', and 'bbcontains' lookup types."
+ if DISABLE: return
+ # Getting Texas, yes we were a country -- once ;)
+ texas = Country.objects.get(name='Texas')
+
+ # Seeing what cities are in Texas, should get Houston and Dallas,
+ # and Oklahoma City because 'contained' only checks on the
+ # _bounding box_ of the Geometries.
+ if not oracle:
+ qs = City.objects.filter(point__contained=texas.mpoly)
+ self.assertEqual(3, qs.count())
+ cities = ['Houston', 'Dallas', 'Oklahoma City']
+ for c in qs: self.assertEqual(True, c.name in cities)
+
+ # Pulling out some cities.
+ houston = City.objects.get(name='Houston')
+ wellington = City.objects.get(name='Wellington')
+ pueblo = City.objects.get(name='Pueblo')
+ okcity = City.objects.get(name='Oklahoma City')
+ lawrence = City.objects.get(name='Lawrence')
+
+ # Now testing contains on the countries using the points for
+ # Houston and Wellington.
+ tx = Country.objects.get(mpoly__contains=houston.point) # Query w/GEOSGeometry
+ nz = Country.objects.get(mpoly__contains=wellington.point.hex) # Query w/EWKBHEX
+ ks = State.objects.get(poly__contains=lawrence.point)
+ self.assertEqual('Texas', tx.name)
+ self.assertEqual('New Zealand', nz.name)
+ self.assertEqual('Kansas', ks.name)
+
+ # Pueblo and Oklahoma City (even though OK City is within the bounding box of Texas)
+ # are not contained in Texas or New Zealand.
+ self.assertEqual(0, len(Country.objects.filter(mpoly__contains=pueblo.point))) # Query w/GEOSGeometry object
+ self.assertEqual(0, len(Country.objects.filter(mpoly__contains=okcity.point.wkt))) # Qeury w/WKT
+
+ # OK City is contained w/in bounding box of Texas.
+ if not oracle:
+ qs = Country.objects.filter(mpoly__bbcontains=okcity.point)
+ self.assertEqual(1, len(qs))
+ self.assertEqual('Texas', qs[0].name)
+
+ def test11_lookup_insert_transform(self):
+ "Testing automatic transform for lookups and inserts."
+ if DISABLE: return
+ # San Antonio in 'WGS84' (SRID 4326)
+ sa_4326 = 'POINT (-98.493183 29.424170)'
+ wgs_pnt = fromstr(sa_4326, srid=4326) # Our reference point in WGS84
+
+ # Oracle doesn't have SRID 3084, using 41157.
+ if oracle:
+ # San Antonio in 'Texas 4205, Southern Zone (1983, meters)' (SRID 41157)
+ # Used the following Oracle SQL to get this value:
+ # SELECT SDO_UTIL.TO_WKTGEOMETRY(SDO_CS.TRANSFORM(SDO_GEOMETRY('POINT (-98.493183 29.424170)', 4326), 41157)) FROM DUAL;
+ nad_wkt = 'POINT (300662.034646583 5416427.45974934)'
+ nad_srid = 41157
+ else:
+ # San Antonio in 'NAD83(HARN) / Texas Centric Lambert Conformal' (SRID 3084)
+ nad_wkt = 'POINT (1645978.362408288754523 6276356.025927528738976)' # Used ogr.py in gdal 1.4.1 for this transform
+ nad_srid = 3084
+
+ # Constructing & querying with a point from a different SRID. Oracle
+ # `SDO_OVERLAPBDYINTERSECT` operates differently from
+ # `ST_Intersects`, so contains is used instead.
+ nad_pnt = fromstr(nad_wkt, srid=nad_srid)
+ if oracle:
+ tx = Country.objects.get(mpoly__contains=nad_pnt)
+ else:
+ tx = Country.objects.get(mpoly__intersects=nad_pnt)
+ self.assertEqual('Texas', tx.name)
+
+ # Creating San Antonio. Remember the Alamo.
+ sa = City(name='San Antonio', point=nad_pnt)
+ sa.save()
+
+ # Now verifying that San Antonio was transformed correctly
+ sa = City.objects.get(name='San Antonio')
+ self.assertAlmostEqual(wgs_pnt.x, sa.point.x, 6)
+ self.assertAlmostEqual(wgs_pnt.y, sa.point.y, 6)
+
+ # If the GeometryField SRID is -1, then we shouldn't perform any
+ # transformation if the SRID of the input geometry is different.
+ m1 = MinusOneSRID(geom=Point(17, 23, srid=4326))
+ m1.save()
+ self.assertEqual(-1, m1.geom.srid)
+
+ # Oracle does not support NULL geometries in its spatial index for
+ # some routines (e.g., SDO_GEOM.RELATE).
+ @no_oracle
+ def test12_null_geometries(self):
+ "Testing NULL geometry support, and the `isnull` lookup type."
+ if DISABLE: return
+ # Querying for both NULL and Non-NULL values.
+ nullqs = State.objects.filter(poly__isnull=True)
+ validqs = State.objects.filter(poly__isnull=False)
+
+ # Puerto Rico should be NULL (it's a commonwealth unincorporated territory)
+ self.assertEqual(1, len(nullqs))
+ self.assertEqual('Puerto Rico', nullqs[0].name)
+
+ # The valid states should be Colorado & Kansas
+ self.assertEqual(2, len(validqs))
+ state_names = [s.name for s in validqs]
+ self.assertEqual(True, 'Colorado' in state_names)
+ self.assertEqual(True, 'Kansas' in state_names)
+
+ # Saving another commonwealth w/a NULL geometry.
+ if not oracle:
+ # TODO: Fix saving w/NULL geometry on Oracle.
+ State(name='Northern Mariana Islands', poly=None).save()
+
+ @no_oracle # No specific `left` or `right` operators in Oracle.
+ def test13_left_right(self):
+ "Testing the 'left' and 'right' lookup types."
+ if DISABLE: return
+ # Left: A << B => true if xmax(A) < xmin(B)
+ # Right: A >> B => true if xmin(A) > xmax(B)
+ # See: BOX2D_left() and BOX2D_right() in lwgeom_box2dfloat4.c in PostGIS source.
+
+ # Getting the borders for Colorado & Kansas
+ co_border = State.objects.get(name='Colorado').poly
+ ks_border = State.objects.get(name='Kansas').poly
+
+ # Note: Wellington has an 'X' value of 174, so it will not be considered
+ # to the left of CO.
+
+ # These cities should be strictly to the right of the CO border.
+ cities = ['Houston', 'Dallas', 'San Antonio', 'Oklahoma City',
+ 'Lawrence', 'Chicago', 'Wellington']
+ qs = City.objects.filter(point__right=co_border)
+ self.assertEqual(7, len(qs))
+ for c in qs: self.assertEqual(True, c.name in cities)
+
+ # These cities should be strictly to the right of the KS border.
+ cities = ['Chicago', 'Wellington']
+ qs = City.objects.filter(point__right=ks_border)
+ self.assertEqual(2, len(qs))
+ for c in qs: self.assertEqual(True, c.name in cities)
+
+ # Note: Wellington has an 'X' value of 174, so it will not be considered
+ # to the left of CO.
+ vic = City.objects.get(point__left=co_border)
+ self.assertEqual('Victoria', vic.name)
+
+ cities = ['Pueblo', 'Victoria']
+ qs = City.objects.filter(point__left=ks_border)
+ self.assertEqual(2, len(qs))
+ for c in qs: self.assertEqual(True, c.name in cities)
+
+ def test14_equals(self):
+ "Testing the 'same_as' and 'equals' lookup types."
+ if DISABLE: return
+ pnt = fromstr('POINT (-95.363151 29.763374)', srid=4326)
+ c1 = City.objects.get(point=pnt)
+ c2 = City.objects.get(point__same_as=pnt)
+ c3 = City.objects.get(point__equals=pnt)
+ for c in [c1, c2, c3]: self.assertEqual('Houston', c.name)
+
+ def test15_relate(self):
+ "Testing the 'relate' lookup type."
+ if DISABLE: return
+ # To make things more interesting, we will have our Texas reference point in
+ # different SRIDs.
+ pnt1 = fromstr('POINT (649287.0363174 4177429.4494686)', srid=2847)
+ pnt2 = fromstr('POINT(-98.4919715741052 29.4333344025053)', srid=4326)
+
+ # Not passing in a geometry as first param shoud
+ # raise a type error when initializing the GeoQuerySet
+ self.assertRaises(TypeError, Country.objects.filter, mpoly__relate=(23, 'foo'))
+ # Making sure the right exception is raised for the given
+ # bad arguments.
+ for bad_args, e in [((pnt1, 0), TypeError), ((pnt2, 'T*T***FF*', 0), ValueError)]:
+ qs = Country.objects.filter(mpoly__relate=bad_args)
+ self.assertRaises(e, qs.count)
+
+ # Relate works differently for the different backends.
+ if postgis:
+ contains_mask = 'T*T***FF*'
+ within_mask = 'T*F**F***'
+ intersects_mask = 'T********'
+ elif oracle:
+ contains_mask = 'contains'
+ within_mask = 'inside'
+ # TODO: This is not quite the same as the PostGIS mask above
+ intersects_mask = 'overlapbdyintersect'
+
+ # Testing contains relation mask.
+ self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, contains_mask)).name)
+ self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, contains_mask)).name)
+
+ # Testing within relation mask.
+ ks = State.objects.get(name='Kansas')
+ self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, within_mask)).name)
+
+ # Testing intersection relation mask.
+ if not oracle:
+ self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt1, intersects_mask)).name)
+ self.assertEqual('Texas', Country.objects.get(mpoly__relate=(pnt2, intersects_mask)).name)
+ self.assertEqual('Lawrence', City.objects.get(point__relate=(ks.poly, intersects_mask)).name)
+
+ def test16_createnull(self):
+ "Testing creating a model instance and the geometry being None"
+ if DISABLE: return
+ c = City()
+ self.assertEqual(c.point, None)
+
+ def test17_unionagg(self):
+ "Testing the `unionagg` (aggregate union) GeoManager method."
+ if DISABLE: return
+ tx = Country.objects.get(name='Texas').mpoly
+ # Houston, Dallas, San Antonio -- Oracle has different order.
+ union1 = fromstr('MULTIPOINT(-98.493183 29.424170,-96.801611 32.782057,-95.363151 29.763374)')
+ union2 = fromstr('MULTIPOINT(-96.801611 32.782057,-95.363151 29.763374,-98.493183 29.424170)')
+ 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 SpatialBackend.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'))
+
+ def test18_geometryfield(self):
+ "Testing GeometryField."
+ if DISABLE: return
+ Feature(name='Point', geom=Point(1, 1)).save()
+ Feature(name='LineString', geom=LineString((0, 0), (1, 1), (5, 5))).save()
+ Feature(name='Polygon', geom=Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0)))).save()
+ Feature(name='GeometryCollection',
+ geom=GeometryCollection(Point(2, 2), LineString((0, 0), (2, 2)),
+ Polygon(LinearRing((0, 0), (0, 5), (5, 5), (5, 0), (0, 0))))).save()
+
+ f_1 = Feature.objects.get(name='Point')
+ self.assertEqual(True, isinstance(f_1.geom, Point))
+ self.assertEqual((1.0, 1.0), f_1.geom.tuple)
+ f_2 = Feature.objects.get(name='LineString')
+ self.assertEqual(True, isinstance(f_2.geom, LineString))
+ self.assertEqual(((0.0, 0.0), (1.0, 1.0), (5.0, 5.0)), f_2.geom.tuple)
+
+ f_3 = Feature.objects.get(name='Polygon')
+ self.assertEqual(True, isinstance(f_3.geom, Polygon))
+ f_4 = Feature.objects.get(name='GeometryCollection')
+ self.assertEqual(True, isinstance(f_4.geom, GeometryCollection))
+ self.assertEqual(f_3.geom, f_4.geom[2])
+
+ def test19_centroid(self):
+ "Testing the `centroid` GeoQuerySet method."
+ if DISABLE: return
+ qs = State.objects.exclude(poly__isnull=True).centroid()
+ if oracle: tol = 0.1
+ else: tol = 0.000000001
+ for s in qs:
+ self.assertEqual(True, s.poly.centroid.equals_exact(s.centroid, tol))
+
+ def test20_pointonsurface(self):
+ "Testing the `point_on_surface` GeoQuerySet method."
+ if DISABLE: return
+ # Reference values.
+ if SpatialBackend.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 SpatialBackend.postgis:
+ # 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 cntry in Country.objects.point_on_surface():
+ self.assertEqual(ref[cntry.name], cntry.point_on_surface)
+
+ @no_oracle
+ def test21_scale(self):
+ "Testing the `scale` GeoQuerySet method."
+ if DISABLE: return
+ xfac, yfac = 2, 3
+ 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.assertEqual(c1[0] * xfac, c2[0])
+ self.assertEqual(c1[1] * yfac, c2[1])
+
+ @no_oracle
+ def test22_translate(self):
+ "Testing the `translate` GeoQuerySet method."
+ if DISABLE: return
+ 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):
+ self.assertEqual(c1[0] + xfac, c2[0])
+ self.assertEqual(c1[1] + yfac, c2[1])
+
+ def test23_numgeom(self):
+ "Testing the `num_geom` GeoQuerySet method."
+ if DISABLE: return
+ # 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 will return 1 for the number of geometries on non-collections,
+ # whereas PostGIS will return None.
+ if postgis: self.assertEqual(None, c.num_geom)
+ else: self.assertEqual(1, c.num_geom)
+
+ def test24_numpoints(self):
+ "Testing the `num_points` GeoQuerySet method."
+ if DISABLE: return
+ for c in Country.objects.num_points(): self.assertEqual(c.mpoly.num_points, c.num_points)
+ if postgis:
+ # Oracle cannot count vertices in Point geometries.
+ for c in City.objects.num_points(): self.assertEqual(1, c.num_points)
+
+ @no_oracle
+ def test25_geoset(self):
+ "Testing the `difference`, `intersection`, `sym_difference`, and `union` GeoQuerySet methods."
+ if DISABLE: return
+ geom = Point(5, 23)
+ for c in Country.objects.all().intersection(geom).difference(geom).sym_difference(geom).union(geom):
+ self.assertEqual(c.mpoly.difference(geom), c.difference)
+ 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)
+
+from test_feeds import GeoFeedTest
+from test_sitemaps import GeoSitemapTest
+def suite():
+ s = unittest.TestSuite()
+ s.addTest(unittest.makeSuite(GeoModelTest))
+ s.addTest(unittest.makeSuite(GeoFeedTest))
+ s.addTest(unittest.makeSuite(GeoSitemapTest))
+ return s