author | Lennard de Rijk <ljvderijk@gmail.com> |
Fri, 16 Jan 2009 17:52:42 +0000 | |
changeset 815 | 7b8c65531fbd |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
323
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Load ../vendor/django into trunk/app/django.
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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import unittest |
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Load ../vendor/django into trunk/app/django.
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parents:
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from django.contrib.gis.tests.utils import mysql, no_mysql, oracle, postgis |
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parents:
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if not mysql: |
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from django.contrib.gis.models import SpatialRefSys |
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|
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test_srs = ({'srid' : 4326, |
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'auth_name' : ('EPSG', True), |
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'auth_srid' : 4326, |
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'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"]]', |
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'proj4' : '+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs ', |
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'spheroid' : 'WGS 84', 'name' : 'WGS 84', |
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'geographic' : True, 'projected' : False, |
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'ellipsoid' : (6378137.0, 6356752.3, 298.257223563), # From proj's "cs2cs -le" and Wikipedia (semi-minor only) |
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'eprec' : (1, 1, 9), |
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}, |
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16 |
{'srid' : 32140, |
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'auth_name' : ('EPSG', False), |
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'auth_srid' : 32140, |
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'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"]]', |
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'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 ', |
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'spheroid' : 'GRS 1980', 'name' : 'NAD83 / Texas South Central', |
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'geographic' : False, 'projected' : True, |
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'ellipsoid' : (6378137.0, 6356752.31414, 298.257222101), # From proj's "cs2cs -le" and Wikipedia (semi-minor only) |
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'eprec' : (1, 5, 10), |
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}, |
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) |
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class SpatialRefSysTest(unittest.TestCase): |
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@no_mysql |
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def test01_retrieve(self): |
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"Testing retrieval of SpatialRefSys model objects." |
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for sd in test_srs: |
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srs = SpatialRefSys.objects.get(srid=sd['srid']) |
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self.assertEqual(sd['srid'], srs.srid) |
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# Some of the authority names are borked on Oracle, e.g., SRID=32140. |
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# also, Oracle Spatial seems to add extraneous info to fields, hence the |
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# the testing with the 'startswith' flag. |
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auth_name, oracle_flag = sd['auth_name'] |
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if postgis or (oracle and oracle_flag): |
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self.assertEqual(True, srs.auth_name.startswith(auth_name)) |
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self.assertEqual(sd['auth_srid'], srs.auth_srid) |
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# No proj.4 and different srtext on oracle backends :( |
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if postgis: |
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self.assertEqual(sd['srtext'], srs.wkt) |
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self.assertEqual(sd['proj4'], srs.proj4text) |
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@no_mysql |
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def test02_osr(self): |
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"Testing getting OSR objects from SpatialRefSys model objects." |
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for sd in test_srs: |
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sr = SpatialRefSys.objects.get(srid=sd['srid']) |
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self.assertEqual(True, sr.spheroid.startswith(sd['spheroid'])) |
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self.assertEqual(sd['geographic'], sr.geographic) |
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self.assertEqual(sd['projected'], sr.projected) |
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self.assertEqual(True, sr.name.startswith(sd['name'])) |
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# Testing the SpatialReference object directly. |
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if postgis: |
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srs = sr.srs |
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self.assertEqual(sd['proj4'], srs.proj4) |
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self.assertEqual(sd['srtext'], srs.wkt) |
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|
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@no_mysql |
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def test03_ellipsoid(self): |
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"Testing the ellipsoid property." |
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for sd in test_srs: |
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# Getting the ellipsoid and precision parameters. |
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ellps1 = sd['ellipsoid'] |
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prec = sd['eprec'] |
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# Getting our spatial reference and its ellipsoid |
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srs = SpatialRefSys.objects.get(srid=sd['srid']) |
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ellps2 = srs.ellipsoid |
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|
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for i in range(3): |
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param1 = ellps1[i] |
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param2 = ellps2[i] |
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self.assertAlmostEqual(ellps1[i], ellps2[i], prec[i]) |
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|
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def suite(): |
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s = unittest.TestSuite() |
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s.addTest(unittest.makeSuite(SpatialRefSysTest)) |
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return s |
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|
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def run(verbosity=2): |
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unittest.TextTestRunner(verbosity=verbosity).run(suite()) |