565 lines
26 KiB
Python
565 lines
26 KiB
Python
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import os, unittest
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from models import Country, City, State, Feature, MinusOneSRID
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from django.contrib.gis import gdal
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from django.contrib.gis.db.backend import SpatialBackend
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from django.contrib.gis.geos import *
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from django.contrib.gis.measure import Distance
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from django.contrib.gis.tests.utils import no_oracle, no_postgis, oracle, postgis
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# TODO: Some tests depend on the success/failure of previous tests, these should
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# be decoupled. This flag is an artifact of this problem, and makes debugging easier;
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# specifically, the DISABLE flag will disables all tests, allowing problem tests to
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# be examined individually.
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DISABLE = False
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class GeoModelTest(unittest.TestCase):
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def test01_initial_sql(self):
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"Testing geographic initial SQL."
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if DISABLE: return
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if oracle:
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# Oracle doesn't allow strings longer than 4000 characters
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# in SQL files, and I'm stumped on how to use Oracle BFILE's
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# in PLSQL, so we set up the larger geometries manually, rather
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# than relying on the initial SQL.
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# Routine for returning the path to the data files.
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data_dir = os.path.join(os.path.dirname(__file__), 'sql')
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def get_file(wkt_file):
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return os.path.join(data_dir, wkt_file)
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State(name='Colorado', poly=fromfile(get_file('co.wkt'))).save()
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State(name='Kansas', poly=fromfile(get_file('ks.wkt'))).save()
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Country(name='Texas', mpoly=fromfile(get_file('tx.wkt'))).save()
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Country(name='New Zealand', mpoly=fromfile(get_file('nz.wkt'))).save()
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# Ensuring that data was loaded from initial SQL.
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self.assertEqual(2, Country.objects.count())
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self.assertEqual(8, City.objects.count())
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# Oracle cannot handle NULL geometry values w/certain queries.
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if oracle: n_state = 2
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else: n_state = 3
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self.assertEqual(n_state, State.objects.count())
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def test02_proxy(self):
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"Testing Lazy-Geometry support (using the GeometryProxy)."
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if DISABLE: return
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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_oracle # Oracle does not support KML.
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def test03a_kml(self):
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"Testing KML output from the database using GeoManager.kml()."
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if DISABLE: return
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# Should throw a TypeError when trying to obtain KML from a
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# non-geometry field.
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qs = City.objects.all()
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self.assertRaises(TypeError, qs.kml, 'name')
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# The reference KML depends on the version of PostGIS used
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# (the output stopped including altitude in 1.3.3).
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major, minor1, minor2 = SpatialBackend.version
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ref_kml1 = '<Point><coordinates>-104.609252,38.255001,0</coordinates></Point>'
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ref_kml2 = '<Point><coordinates>-104.609252,38.255001</coordinates></Point>'
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if major == 1:
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if minor1 > 3 or (minor1 == 3 and minor2 >= 3): ref_kml = ref_kml2
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else: ref_kml = ref_kml1
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else:
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ref_kml = ref_kml2
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# Ensuring the KML is as expected.
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ptown1 = City.objects.kml(field_name='point', precision=9).get(name='Pueblo')
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ptown2 = City.objects.kml(precision=9).get(name='Pueblo')
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for ptown in [ptown1, ptown2]:
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self.assertEqual(ref_kml, ptown.kml)
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def test03b_gml(self):
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"Testing GML output from the database using GeoManager.gml()."
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if DISABLE: return
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# Should throw a TypeError when tyring to obtain GML from a
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# non-geometry field.
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qs = City.objects.all()
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self.assertRaises(TypeError, qs.gml, field_name='name')
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ptown1 = City.objects.gml(field_name='point', precision=9).get(name='Pueblo')
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ptown2 = City.objects.gml(precision=9).get(name='Pueblo')
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if oracle:
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# No precision parameter for Oracle :-/
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import re
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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>')
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for ptown in [ptown1, ptown2]:
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self.assertEqual(True, bool(gml_regex.match(ptown.gml)))
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else:
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for ptown in [ptown1, ptown2]:
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self.assertEqual('<gml:Point srsName="EPSG:4326"><gml:coordinates>-104.609252,38.255001</gml:coordinates></gml:Point>', ptown.gml)
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def test04_transform(self):
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"Testing the transform() GeoManager method."
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if DISABLE: return
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# Pre-transformed points for Houston and Pueblo.
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htown = fromstr('POINT(1947516.83115183 6322297.06040572)', srid=3084)
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ptown = fromstr('POINT(992363.390841912 481455.395105533)', srid=2774)
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prec = 3 # Precision is low due to version variations in PROJ and GDAL.
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# Asserting the result of the transform operation with the values in
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# the pre-transformed points. Oracle does not have the 3084 SRID.
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if not oracle:
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h = City.objects.transform(htown.srid).get(name='Houston')
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self.assertEqual(3084, h.point.srid)
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self.assertAlmostEqual(htown.x, h.point.x, prec)
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self.assertAlmostEqual(htown.y, h.point.y, prec)
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p1 = City.objects.transform(ptown.srid, field_name='point').get(name='Pueblo')
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p2 = City.objects.transform(srid=ptown.srid).get(name='Pueblo')
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for p in [p1, p2]:
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self.assertEqual(2774, p.point.srid)
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self.assertAlmostEqual(ptown.x, p.point.x, prec)
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self.assertAlmostEqual(ptown.y, p.point.y, prec)
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@no_oracle # Most likely can do this in Oracle, however, it is not yet implemented (patches welcome!)
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def test05_extent(self):
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"Testing the `extent` GeoQuerySet method."
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if DISABLE: return
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# Reference query:
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# `SELECT ST_extent(point) FROM geoapp_city WHERE (name='Houston' or name='Dallas');`
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# => BOX(-96.8016128540039 29.7633724212646,-95.3631439208984 32.7820587158203)
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expected = (-96.8016128540039, 29.7633724212646, -95.3631439208984, 32.782058715820)
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qs = City.objects.filter(name__in=('Houston', 'Dallas'))
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extent = qs.extent()
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for val, exp in zip(extent, expected):
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self.assertAlmostEqual(exp, val, 8)
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@no_oracle
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def test06_make_line(self):
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"Testing the `make_line` GeoQuerySet method."
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if DISABLE: return
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# Ensuring that a `TypeError` is raised on models without PointFields.
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self.assertRaises(TypeError, State.objects.make_line)
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self.assertRaises(TypeError, Country.objects.make_line)
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# Reference query:
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# SELECT AsText(ST_MakeLine(geoapp_city.point)) FROM geoapp_city;
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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),
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City.objects.make_line())
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def test09_disjoint(self):
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"Testing the `disjoint` lookup type."
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if DISABLE: return
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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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if not postgis:
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# TODO: Do NULL columns bork queries on PostGIS? The following
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# error is encountered:
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# psycopg2.ProgrammingError: invalid memory alloc request size 4294957297
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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 test10_contains_contained(self):
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"Testing the 'contained', 'contains', and 'bbcontains' lookup types."
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if DISABLE: return
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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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ks = State.objects.get(poly__contains=lawrence.point)
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self.assertEqual('Texas', tx.name)
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self.assertEqual('New Zealand', nz.name)
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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(0, 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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def test11_lookup_insert_transform(self):
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"Testing automatic transform for lookups and inserts."
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if DISABLE: return
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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(name='San Antonio', point=nad_pnt)
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sa.save()
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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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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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# Oracle does not support NULL geometries in its spatial index for
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# some routines (e.g., SDO_GEOM.RELATE).
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@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):
|
||
|
|
if DISABLE: return
|
||
|
|
"Testing the 'same_as' and 'equals' lookup types."
|
||
|
|
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)
|
||
|
|
|
||
|
|
def suite():
|
||
|
|
s = unittest.TestSuite()
|
||
|
|
s.addTest(unittest.makeSuite(GeoModelTest))
|
||
|
|
return s
|