--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/contrib/gis/tests/test_spatialrefsys.py Wed Jan 20 00:34:04 2010 +0100
@@ -0,0 +1,111 @@
+import unittest
+from django.contrib.gis.db.backend import SpatialBackend
+from django.contrib.gis.tests.utils import mysql, no_mysql, oracle, postgis, spatialite
+if not mysql:
+ from django.contrib.gis.models import SpatialRefSys
+
+test_srs = ({'srid' : 4326,
+ 'auth_name' : ('EPSG', True),
+ 'auth_srid' : 4326,
+ 'srtext' : 'GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],TOWGS84[0,0,0,0,0,0,0],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]',
+ 'srtext14' : 'GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]]',
+ 'proj4' : '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs ',
+ 'spheroid' : 'WGS 84', 'name' : 'WGS 84',
+ 'geographic' : True, 'projected' : False, 'spatialite' : True,
+ 'ellipsoid' : (6378137.0, 6356752.3, 298.257223563), # From proj's "cs2cs -le" and Wikipedia (semi-minor only)
+ 'eprec' : (1, 1, 9),
+ },
+ {'srid' : 32140,
+ 'auth_name' : ('EPSG', False),
+ 'auth_srid' : 32140,
+ 'srtext' : 'PROJCS["NAD83 / Texas South Central",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["standard_parallel_1",30.28333333333333],PARAMETER["standard_parallel_2",28.38333333333333],PARAMETER["latitude_of_origin",27.83333333333333],PARAMETER["central_meridian",-99],PARAMETER["false_easting",600000],PARAMETER["false_northing",4000000],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","32140"]]',
+ 'srtext14': 'PROJCS["NAD83 / Texas South Central",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.257222101,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.01745329251994328,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4269"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],PROJECTION["Lambert_Conformal_Conic_2SP"],PARAMETER["standard_parallel_1",30.28333333333333],PARAMETER["standard_parallel_2",28.38333333333333],PARAMETER["latitude_of_origin",27.83333333333333],PARAMETER["central_meridian",-99],PARAMETER["false_easting",600000],PARAMETER["false_northing",4000000],AUTHORITY["EPSG","32140"],AXIS["X",EAST],AXIS["Y",NORTH]]',
+ 'proj4' : '+proj=lcc +lat_1=30.28333333333333 +lat_2=28.38333333333333 +lat_0=27.83333333333333 +lon_0=-99 +x_0=600000 +y_0=4000000 +ellps=GRS80 +datum=NAD83 +units=m +no_defs ',
+ 'spheroid' : 'GRS 1980', 'name' : 'NAD83 / Texas South Central',
+ 'geographic' : False, 'projected' : True, 'spatialite' : False,
+ 'ellipsoid' : (6378137.0, 6356752.31414, 298.257222101), # From proj's "cs2cs -le" and Wikipedia (semi-minor only)
+ 'eprec' : (1, 5, 10),
+ },
+ )
+
+if SpatialBackend.postgis:
+ major, minor1, minor2 = SpatialBackend.version
+ POSTGIS_14 = major >=1 and minor1 >= 4
+
+class SpatialRefSysTest(unittest.TestCase):
+
+ @no_mysql
+ def test01_retrieve(self):
+ "Testing retrieval of SpatialRefSys model objects."
+ for sd in test_srs:
+ srs = SpatialRefSys.objects.get(srid=sd['srid'])
+ self.assertEqual(sd['srid'], srs.srid)
+
+ # Some of the authority names are borked on Oracle, e.g., SRID=32140.
+ # also, Oracle Spatial seems to add extraneous info to fields, hence the
+ # the testing with the 'startswith' flag.
+ auth_name, oracle_flag = sd['auth_name']
+ if postgis or (oracle and oracle_flag):
+ self.assertEqual(True, srs.auth_name.startswith(auth_name))
+
+ self.assertEqual(sd['auth_srid'], srs.auth_srid)
+
+ # No proj.4 and different srtext on oracle backends :(
+ if postgis:
+ if POSTGIS_14:
+ srtext = sd['srtext14']
+ else:
+ srtext = sd['srtext']
+ self.assertEqual(srtext, srs.wkt)
+ self.assertEqual(sd['proj4'], srs.proj4text)
+
+ @no_mysql
+ def test02_osr(self):
+ "Testing getting OSR objects from SpatialRefSys model objects."
+ for sd in test_srs:
+ sr = SpatialRefSys.objects.get(srid=sd['srid'])
+ self.assertEqual(True, sr.spheroid.startswith(sd['spheroid']))
+ self.assertEqual(sd['geographic'], sr.geographic)
+ self.assertEqual(sd['projected'], sr.projected)
+
+ if not (spatialite and not sd['spatialite']):
+ # Can't get 'NAD83 / Texas South Central' from PROJ.4 string
+ # on SpatiaLite
+ self.assertEqual(True, sr.name.startswith(sd['name']))
+
+ # Testing the SpatialReference object directly.
+ if postgis or spatialite:
+ srs = sr.srs
+ self.assertEqual(sd['proj4'], srs.proj4)
+ # No `srtext` field in the `spatial_ref_sys` table in SpatiaLite
+ if not spatialite:
+ if POSTGIS_14:
+ srtext = sd['srtext14']
+ else:
+ srtext = sd['srtext']
+ self.assertEqual(srtext, srs.wkt)
+
+ @no_mysql
+ def test03_ellipsoid(self):
+ "Testing the ellipsoid property."
+ for sd in test_srs:
+ # Getting the ellipsoid and precision parameters.
+ ellps1 = sd['ellipsoid']
+ prec = sd['eprec']
+
+ # Getting our spatial reference and its ellipsoid
+ srs = SpatialRefSys.objects.get(srid=sd['srid'])
+ ellps2 = srs.ellipsoid
+
+ for i in range(3):
+ param1 = ellps1[i]
+ param2 = ellps2[i]
+ self.assertAlmostEqual(ellps1[i], ellps2[i], prec[i])
+
+def suite():
+ s = unittest.TestSuite()
+ s.addTest(unittest.makeSuite(SpatialRefSysTest))
+ return s
+
+def run(verbosity=2):
+ unittest.TextTestRunner(verbosity=verbosity).run(suite())