def get(self, request, admin_level_id, version=None): if not AdminLevel.objects.filter(id=admin_level_id).exists(): raise exceptions.NotFound() admin_level = AdminLevel.objects.get(id=admin_level_id) if not admin_level.can_get(request.user): raise exceptions.PermissionDenied() areas = admin_level.geoarea_set.filter(polygons__isnull=False) if areas.count() > 0: try: envelope = Envelope(*areas[0].polygons.extent) for area in areas[1:]: envelope.expand_to_include(*area.polygons.extent) return response.Response({ 'bounds': { 'min_x': envelope.min_x, 'min_y': envelope.min_y, 'max_x': envelope.max_x, 'max_y': envelope.max_y, } }) except ValueError as e: return response.Response({ 'bounds': None, }) return response.Response({ 'bounds': None, })
def calc_cache(self, save=True): # GeoJSON geojson = json.loads(serialize( 'geojson', self.geoarea_set.all(), geometry_field='polygons', fields=('pk', 'title', 'code', 'parent'), )) # Titles titles = {} for geo_area in self.geoarea_set.all(): titles[str(geo_area.id)] = { 'title': geo_area.title, 'parent_id': str(geo_area.parent.pk) if geo_area.parent else None, 'code': geo_area.code, } self.geo_area_titles = titles # Bounds bounds = {} areas = self.geoarea_set.filter(polygons__isnull=False) if areas.count() > 0: try: envelope = Envelope(*areas[0].polygons.extent) for area in areas[1:]: envelope.expand_to_include(*area.polygons.extent) bounds = { 'minX': envelope.min_x, 'minY': envelope.min_y, 'maxX': envelope.max_x, 'maxY': envelope.max_y, } except ValueError: pass self.geojson_file.save( f'admin-level-{self.pk}.json', ContentFile( json.dumps(geojson, cls=DjangoJSONEncoder).encode('utf-8'), ), ) self.bounds_file.save( f'admin-level-{self.pk}.json', ContentFile( json.dumps({'bounds': bounds}, cls=DjangoJSONEncoder).encode('utf-8'), ), ) if save: self.save()
def index_map(index, obj): time_start = None time_end = None extent = Envelope(0, 0, 0, 0) for l in obj.local_layers: start = end = None try: start, end = l.get_time_extent() except: _logger.warn('could not get time info for %s', l.typename) if start: start = util.iso_str_to_jdate(start) if time_start is None: time_start = start else: time_start = min(time_start, start) if end: end = util.iso_str_to_jdate(end) if time_end is None: time_end = start else: time_end = max(time_end, end) try: wms_metadata = l.metadata() extent.expand_to_include(wms_metadata.boundingBoxWGS84) except: _logger.warn('could not get WMS info for %s', l.typename) if time_start: index.time_start = time_start if time_end: index.time_end = time_end index.extent = extent.wkt index.save()
def index_map(index, obj): time_start = None time_end = None extent = Envelope(0,0,0,0) for l in obj.local_layers: start = end = None try: start, end = l.get_time_extent() except: _logger.warn('could not get time info for %s', l.typename) if start: start = util.iso_str_to_jdate(start) if time_start is None: time_start = start else: time_start = min(time_start, start) if end: end = util.iso_str_to_jdate(end) if time_end is None: time_end = start else: time_end = max(time_end, end) try: wms_metadata = l.metadata() extent.expand_to_include(wms_metadata.boundingBoxWGS84) except: _logger.warn('could not get WMS info for %s', l.typename ) if time_start: index.time_start = time_start if time_end: index.time_end = time_end index.extent = extent.wkt index.save()
class EnvelopeTest(unittest.TestCase): def setUp(self): self.e = Envelope(0, 0, 5, 5) def test01_init(self): "Testing Envelope initialization." e1 = Envelope((0, 0, 5, 5)) Envelope(0, 0, 5, 5) Envelope(0, '0', '5', 5) # Thanks to ww for this Envelope(e1._envelope) self.assertRaises(GDALException, Envelope, (5, 5, 0, 0)) self.assertRaises(GDALException, Envelope, 5, 5, 0, 0) self.assertRaises(GDALException, Envelope, (0, 0, 5, 5, 3)) self.assertRaises(GDALException, Envelope, ()) self.assertRaises(ValueError, Envelope, 0, 'a', 5, 5) self.assertRaises(TypeError, Envelope, 'foo') self.assertRaises(GDALException, Envelope, (1, 1, 0, 0)) try: Envelope(0, 0, 0, 0) except GDALException: self.fail("shouldn't raise an exception for min_x == max_x or min_y == max_y") def test02_properties(self): "Testing Envelope properties." e = Envelope(0, 0, 2, 3) self.assertEqual(0, e.min_x) self.assertEqual(0, e.min_y) self.assertEqual(2, e.max_x) self.assertEqual(3, e.max_y) self.assertEqual((0, 0), e.ll) self.assertEqual((2, 3), e.ur) self.assertEqual((0, 0, 2, 3), e.tuple) self.assertEqual('POLYGON((0.0 0.0,0.0 3.0,2.0 3.0,2.0 0.0,0.0 0.0))', e.wkt) self.assertEqual('(0.0, 0.0, 2.0, 3.0)', str(e)) def test03_equivalence(self): "Testing Envelope equivalence." e1 = Envelope(0.523, 0.217, 253.23, 523.69) e2 = Envelope((0.523, 0.217, 253.23, 523.69)) self.assertEqual(e1, e2) self.assertEqual((0.523, 0.217, 253.23, 523.69), e1) def test04_expand_to_include_pt_2_params(self): "Testing Envelope expand_to_include -- point as two parameters." self.e.expand_to_include(2, 6) self.assertEqual((0, 0, 5, 6), self.e) self.e.expand_to_include(-1, -1) self.assertEqual((-1, -1, 5, 6), self.e) def test05_expand_to_include_pt_2_tuple(self): "Testing Envelope expand_to_include -- point as a single 2-tuple parameter." self.e.expand_to_include((10, 10)) self.assertEqual((0, 0, 10, 10), self.e) self.e.expand_to_include((-10, -10)) self.assertEqual((-10, -10, 10, 10), self.e) def test06_expand_to_include_extent_4_params(self): "Testing Envelope expand_to_include -- extent as 4 parameters." self.e.expand_to_include(-1, 1, 3, 7) self.assertEqual((-1, 0, 5, 7), self.e) def test06_expand_to_include_extent_4_tuple(self): "Testing Envelope expand_to_include -- extent as a single 4-tuple parameter." self.e.expand_to_include((-1, 1, 3, 7)) self.assertEqual((-1, 0, 5, 7), self.e) def test07_expand_to_include_envelope(self): "Testing Envelope expand_to_include with Envelope as parameter." self.e.expand_to_include(Envelope(-1, 1, 3, 7)) self.assertEqual((-1, 0, 5, 7), self.e) def test08_expand_to_include_point(self): "Testing Envelope expand_to_include with Point as parameter." self.e.expand_to_include(TestPoint(-1, 1)) self.assertEqual((-1, 0, 5, 5), self.e) self.e.expand_to_include(TestPoint(10, 10)) self.assertEqual((-1, 0, 10, 10), self.e)
class EnvelopeTest(unittest.TestCase): def setUp(self): self.e = Envelope(0, 0, 5, 5) def test01_init(self): "Testing Envelope initilization." e1 = Envelope((0, 0, 5, 5)) Envelope(0, 0, 5, 5) Envelope(0, '0', '5', 5) # Thanks to ww for this Envelope(e1._envelope) self.assertRaises(OGRException, Envelope, (5, 5, 0, 0)) self.assertRaises(OGRException, Envelope, 5, 5, 0, 0) self.assertRaises(OGRException, Envelope, (0, 0, 5, 5, 3)) self.assertRaises(OGRException, Envelope, ()) self.assertRaises(ValueError, Envelope, 0, 'a', 5, 5) self.assertRaises(TypeError, Envelope, 'foo') self.assertRaises(OGRException, Envelope, (1, 1, 0, 0)) try: Envelope(0, 0, 0, 0) except OGRException: self.fail("shouldn't raise an exception for min_x == max_x or min_y == max_y") def test02_properties(self): "Testing Envelope properties." e = Envelope(0, 0, 2, 3) self.assertEqual(0, e.min_x) self.assertEqual(0, e.min_y) self.assertEqual(2, e.max_x) self.assertEqual(3, e.max_y) self.assertEqual((0, 0), e.ll) self.assertEqual((2, 3), e.ur) self.assertEqual((0, 0, 2, 3), e.tuple) self.assertEqual('POLYGON((0.0 0.0,0.0 3.0,2.0 3.0,2.0 0.0,0.0 0.0))', e.wkt) self.assertEqual('(0.0, 0.0, 2.0, 3.0)', str(e)) def test03_equivalence(self): "Testing Envelope equivalence." e1 = Envelope(0.523, 0.217, 253.23, 523.69) e2 = Envelope((0.523, 0.217, 253.23, 523.69)) self.assertEqual(e1, e2) self.assertEqual((0.523, 0.217, 253.23, 523.69), e1) def test04_expand_to_include_pt_2_params(self): "Testing Envelope expand_to_include -- point as two parameters." self.e.expand_to_include(2, 6) self.assertEqual((0, 0, 5, 6), self.e) self.e.expand_to_include(-1, -1) self.assertEqual((-1, -1, 5, 6), self.e) def test05_expand_to_include_pt_2_tuple(self): "Testing Envelope expand_to_include -- point as a single 2-tuple parameter." self.e.expand_to_include((10, 10)) self.assertEqual((0, 0, 10, 10), self.e) self.e.expand_to_include((-10, -10)) self.assertEqual((-10, -10, 10, 10), self.e) def test06_expand_to_include_extent_4_params(self): "Testing Envelope expand_to_include -- extent as 4 parameters." self.e.expand_to_include(-1, 1, 3, 7) self.assertEqual((-1, 0, 5, 7), self.e) def test06_expand_to_include_extent_4_tuple(self): "Testing Envelope expand_to_include -- extent as a single 4-tuple parameter." self.e.expand_to_include((-1, 1, 3, 7)) self.assertEqual((-1, 0, 5, 7), self.e) def test07_expand_to_include_envelope(self): "Testing Envelope expand_to_include with Envelope as parameter." self.e.expand_to_include(Envelope(-1, 1, 3, 7)) self.assertEqual((-1, 0, 5, 7), self.e) def test08_expand_to_include_point(self): "Testing Envelope expand_to_include with Point as parameter." self.e.expand_to_include(TestPoint(-1, 1)) self.assertEqual((-1, 0, 5, 5), self.e) self.e.expand_to_include(TestPoint(10, 10)) self.assertEqual((-1, 0, 10, 10), self.e)