class TestWGS83TileGridUL(object):
def setup(self):
self.grid = TileGrid(4326, bbox=(-180, -90, 180, 90), origin='ul')
def test_resolution(self):
assert_almost_equal(self.grid.resolution(0), 1.40625)
assert_almost_equal(self.grid.resolution(1), 1.40625 / 2)
def test_bbox(self):
eq_(self.grid.bbox, (-180.0, -90.0, 180.0, 90.0))
def test_tile_bbox(self):
eq_(self.grid.tile_bbox((0, 0, 0)), (-180.0, -270.0, 180.0, 90.0))
eq_(self.grid.tile_bbox((0, 0, 0), limit=True),
(-180.0, -90.0, 180.0, 90.0))
eq_(self.grid.tile_bbox((0, 0, 1)), (-180.0, -90.0, 0.0, 90.0))
def test_tile(self):
eq_(self.grid.tile(-170, -80, 0), (0, 0, 0))
eq_(self.grid.tile(-170, -80, 1), (0, 0, 1))
eq_(self.grid.tile(-170, -80, 2), (0, 1, 2))
def test_grid_size(self):
eq_(self.grid.grid_sizes[0], (1, 1))
eq_(self.grid.grid_sizes[1], (2, 1))
eq_(self.grid.grid_sizes[2], (4, 2))
def test_affected_tiles(self):
bbox, grid, tiles = self.grid.get_affected_tiles((-180, -90, 180, 90),
(512, 256))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(grid, (2, 1))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
bbox, grid, tiles = self.grid.get_affected_tiles((-180, -90, 0, 90),
(512, 512))
eq_(bbox, (-180.0, -90.0, 0.0, 90.0))
eq_(grid, (2, 2))
eq_(list(tiles), [(0, 0, 2), (1, 0, 2), (0, 1, 2), (1, 1, 2)])
def test_affected_level_tiles(self):
bbox, grid, tiles = self.grid.get_affected_level_tiles(
(-180, -90, 180, 90), 1)
eq_(grid, (2, 1))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
bbox, grid, tiles = self.grid.get_affected_level_tiles((0, 0, 180, 90),
2)
eq_(grid, (2, 1))
eq_(list(tiles), [(2, 0, 2), (3, 0, 2)])
eq_(bbox, (0.0, 0.0, 180.0, 90.0))
bbox, grid, tiles = self.grid.get_affected_level_tiles(
(0, -90, 180, 90), 2)
eq_(grid, (2, 2))
eq_(list(tiles), [(2, 0, 2), (3, 0, 2), (2, 1, 2), (3, 1, 2)])
eq_(bbox, (0.0, -90.0, 180.0, 90.0))
def test_broken_bbox(self):
grid = TileGrid()
# broken request from "ArcGIS Client Using WinInet"
req_bbox = (-10000855.0573254,2847125.18913603,-9329367.42767611,4239924.78564583)
try:
grid.get_affected_tiles(req_bbox, (256, 256), req_srs=SRS(31467))
except TransformationError:
pass
else:
assert False, 'Expected TransformationError'
def test_broken_bbox(self):
grid = TileGrid()
# broken request from "ArcGIS Client Using WinInet"
req_bbox = (-10000855.0573254,2847125.18913603,-9329367.42767611,4239924.78564583)
try:
grid.get_affected_tiles(req_bbox, (256, 256), req_srs=SRS(31467))
except TransformationError:
pass
else:
assert False, 'Expected TransformationError'
class TestFixedResolutionsTileGrid(TileGridTest):
def setup(self):
self.res = [1000.0, 500.0, 200.0, 100.0, 50.0, 20.0, 5.0]
bbox = (3250000, 5230000, 3930000, 6110000)
self.grid = TileGrid(SRS(31467), bbox=bbox, res=self.res)
def test_resolution(self):
for level, res in enumerate(self.res):
assert res == self.grid.resolution(level)
def test_closest_level(self):
assert self.grid.closest_level(2000) == 0
assert self.grid.closest_level(1000) == 0
assert self.grid.closest_level(950) == 0
assert self.grid.closest_level(210) == 2
def test_affected_tiles(self):
req_bbox = (3250000, 5230000, 3930000, 6110000)
self.grid.max_shrink_factor = 10
bbox, grid_size, tiles = \
self.grid.get_affected_tiles(req_bbox, (256, 256))
assert bbox == (req_bbox[0], req_bbox[1],
req_bbox[0]+1000*256*3, req_bbox[1]+1000*256*4)
assert grid_size == (3, 4)
tiles = list(tiles)
assert tiles == [(0, 3, 0), (1, 3, 0), (2, 3, 0),
(0, 2, 0), (1, 2, 0), (2, 2, 0),
(0, 1, 0), (1, 1, 0), (2, 1, 0),
(0, 0, 0), (1, 0, 0), (2, 0, 0),
]
def test_affected_tiles_2(self):
req_bbox = (3250000, 5230000, 3930000, 6110000)
self.grid.max_shrink_factor = 2.0
try:
bbox, grid_size, tiles = \
self.grid.get_affected_tiles(req_bbox, (256, 256))
except NoTiles:
pass
else:
assert False, 'got no exception'
def test_grid(self):
for level, grid_size in [(0, (3, 4)), (1, (6, 7)), (2, (14, 18))]:
yield self.check_grid, level, grid_size
def test_tile_bbox(self):
tile_bbox = self.grid.tile_bbox((0, 0, 0)) # w: 1000x256
assert tile_bbox == (3250000.0, 5230000.0, 3506000.0, 5486000.0)
tile_bbox = self.grid.tile_bbox((0, 0, 1)) # w: 500x256
assert tile_bbox == (3250000.0, 5230000.0, 3378000.0, 5358000.0)
tile_bbox = self.grid.tile_bbox((0, 0, 2)) # w: 200x256
assert tile_bbox == (3250000.0, 5230000.0, 3301200.0, 5281200.0)
class TestFixedResolutionsTileGrid(TileGridTest):
def setup(self):
self.res = [1000.0, 500.0, 200.0, 100.0, 50.0, 20.0, 5.0]
bbox = (3250000, 5230000, 3930000, 6110000)
self.grid = TileGrid(SRS(31467), bbox=bbox, res=self.res)
def test_resolution(self):
for level, res in enumerate(self.res):
assert res == self.grid.resolution(level)
def test_closest_level(self):
assert self.grid.closest_level(2000) == 0
assert self.grid.closest_level(1000) == 0
assert self.grid.closest_level(950) == 0
assert self.grid.closest_level(210) == 2
def test_affected_tiles(self):
req_bbox = (3250000, 5230000, 3930000, 6110000)
self.grid.max_shrink_factor = 10
bbox, grid_size, tiles = \
self.grid.get_affected_tiles(req_bbox, (256, 256))
assert bbox == (req_bbox[0], req_bbox[1],
req_bbox[0]+1000*256*3, req_bbox[1]+1000*256*4)
assert grid_size == (3, 4)
tiles = list(tiles)
assert tiles == [(0, 3, 0), (1, 3, 0), (2, 3, 0),
(0, 2, 0), (1, 2, 0), (2, 2, 0),
(0, 1, 0), (1, 1, 0), (2, 1, 0),
(0, 0, 0), (1, 0, 0), (2, 0, 0),
]
def test_affected_tiles_2(self):
req_bbox = (3250000, 5230000, 3930000, 6110000)
self.grid.max_shrink_factor = 2.0
try:
bbox, grid_size, tiles = \
self.grid.get_affected_tiles(req_bbox, (256, 256))
except NoTiles:
pass
else:
assert False, 'got no exception'
def test_grid(self):
for level, grid_size in [(0, (3, 4)), (1, (6, 7)), (2, (14, 18))]:
yield self.check_grid, level, grid_size
def test_tile_bbox(self):
tile_bbox = self.grid.tile_bbox((0, 0, 0)) # w: 1000x256
assert tile_bbox == (3250000.0, 5230000.0, 3506000.0, 5486000.0)
tile_bbox = self.grid.tile_bbox((0, 0, 1)) # w: 500x256
assert tile_bbox == (3250000.0, 5230000.0, 3378000.0, 5358000.0)
tile_bbox = self.grid.tile_bbox((0, 0, 2)) # w: 200x256
assert tile_bbox == (3250000.0, 5230000.0, 3301200.0, 5281200.0)
class TestWGS83TileGridUL(object):
def setup(self):
self.grid = TileGrid(4326, bbox=(-180, -90, 180, 90), origin='ul')
def test_resolution(self):
assert_almost_equal(self.grid.resolution(0), 1.40625)
assert_almost_equal(self.grid.resolution(1), 1.40625/2)
def test_bbox(self):
eq_(self.grid.bbox, (-180.0, -90.0, 180.0, 90.0))
def test_tile_bbox(self):
eq_(self.grid.tile_bbox((0, 0, 0)), (-180.0, -270.0, 180.0, 90.0))
eq_(self.grid.tile_bbox((0, 0, 0), limit=True), (-180.0, -90.0, 180.0, 90.0))
eq_(self.grid.tile_bbox((0, 0, 1)), (-180.0, -90.0, 0.0, 90.0))
def test_tile(self):
eq_(self.grid.tile(-170, -80, 0), (0, 0, 0))
eq_(self.grid.tile(-170, -80, 1), (0, 0, 1))
eq_(self.grid.tile(-170, -80, 2), (0, 1, 2))
def test_grid_size(self):
eq_(self.grid.grid_sizes[0], (1, 1))
eq_(self.grid.grid_sizes[1], (2, 1))
eq_(self.grid.grid_sizes[2], (4, 2))
def test_affected_tiles(self):
bbox, grid, tiles = self.grid.get_affected_tiles((-180,-90,180,90), (512,256))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(grid, (2, 1))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
bbox, grid, tiles = self.grid.get_affected_tiles((-180,-90,0,90), (512, 512))
eq_(bbox, (-180.0, -90.0, 0.0, 90.0))
eq_(grid, (2, 2))
eq_(list(tiles), [(0, 0, 2), (1, 0, 2), (0, 1, 2), (1, 1, 2)])
def test_affected_level_tiles(self):
bbox, grid, tiles = self.grid.get_affected_level_tiles((-180,-90,180,90), 1)
eq_(grid, (2, 1))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
bbox, grid, tiles = self.grid.get_affected_level_tiles((0,0,180,90), 2)
eq_(grid, (2, 1))
eq_(list(tiles), [(2, 0, 2), (3, 0, 2)])
eq_(bbox, (0.0, 0.0, 180.0, 90.0))
bbox, grid, tiles = self.grid.get_affected_level_tiles((0,-90,180,90), 2)
eq_(grid, (2, 2))
eq_(list(tiles), [(2, 0, 2), (3, 0, 2), (2, 1, 2), (3, 1, 2)])
eq_(bbox, (0.0, -90.0, 180.0, 90.0))
class TestWGS84TileGrid(object):
def setup(self):
self.grid = TileGrid(is_geodetic=True)
def test_resolution(self):
assert_almost_equal(self.grid.resolution(0), 1.40625)
assert_almost_equal(self.grid.resolution(1), 1.40625/2)
def test_bbox(self):
eq_(self.grid.bbox, (-180.0, -90.0, 180.0, 90.0))
def test_grid_size(self):
eq_(self.grid.grid_sizes[0], (1, 1))
eq_(self.grid.grid_sizes[1], (2, 1))
eq_(self.grid.grid_sizes[2], (4, 2))
def test_affected_tiles(self):
bbox, grid, tiles = self.grid.get_affected_tiles((-180,-90,180,90), (512,256))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(grid, (2, 1))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
def test_affected_level_tiles(self):
bbox, grid, tiles = self.grid.get_affected_level_tiles((-180,-90,180,90), 1)
eq_(grid, (2, 1))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
bbox, grid, tiles = self.grid.get_affected_level_tiles((0,0,180,90), 2)
eq_(grid, (2, 1))
eq_(bbox, (0.0, 0.0, 180.0, 90.0))
eq_(list(tiles), [(2, 1, 2), (3, 1, 2)])
class TestWGS84TileGrid(object):
def setup(self):
self.grid = TileGrid(is_geodetic=True)
def test_resolution(self):
assert_almost_equal(self.grid.resolution(0), 1.40625)
assert_almost_equal(self.grid.resolution(1), 1.40625 / 2)
def test_bbox(self):
eq_(self.grid.bbox, (-180.0, -90.0, 180.0, 90.0))
def test_grid_size(self):
eq_(self.grid.grid_sizes[0], (1, 1))
eq_(self.grid.grid_sizes[1], (2, 1))
eq_(self.grid.grid_sizes[2], (4, 2))
def test_affected_tiles(self):
bbox, grid, tiles = self.grid.get_affected_tiles((-180, -90, 180, 90),
(512, 256))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(grid, (2, 1))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
def test_affected_level_tiles(self):
bbox, grid, tiles = self.grid.get_affected_level_tiles(
(-180, -90, 180, 90), 1)
eq_(grid, (2, 1))
eq_(bbox, (-180.0, -90.0, 180.0, 90.0))
eq_(list(tiles), [(0, 0, 1), (1, 0, 1)])
bbox, grid, tiles = self.grid.get_affected_level_tiles((0, 0, 180, 90),
2)
eq_(grid, (2, 1))
eq_(bbox, (0.0, 0.0, 180.0, 90.0))
eq_(list(tiles), [(2, 1, 2), (3, 1, 2)])
def test_affected_tiles_out_of_grid_bounds(self):
grid = TileGrid()
#bbox from open layers
req_bbox = (-30056262.509599999, -10018754.170400001, -20037508.339999996, -0.00080000050365924835)
bbox, grid_size, tiles = \
grid.get_affected_tiles(req_bbox, (256, 256))
assert_almost_equal_bbox(bbox, req_bbox)
eq_(grid_size, (1, 1))
tiles = list(tiles)
eq_(tiles, [None])
def test_affected_tiles_out_of_grid_bounds(self):
grid = TileGrid()
#bbox from open layers
req_bbox = (-30056262.509599999, -10018754.170400001, -20037508.339999996, -0.00080000050365924835)
bbox, grid_size, tiles = \
grid.get_affected_tiles(req_bbox, (256, 256))
assert_almost_equal_bbox(bbox, req_bbox)
eq_(grid_size, (1, 1))
tiles = list(tiles)
eq_(tiles, [None])
class TestGeodeticTileGrid(TileGridTest):
def setup(self):
self.grid = TileGrid(is_geodetic=True, )
def test_auto_resolution(self):
grid = TileGrid(is_geodetic=True,
bbox=(-10, 30, 10, 40),
tile_size=(20, 20))
tile_bbox = grid.tile_bbox((0, 0, 0))
assert tile_bbox == (-10, 30, 10, 50)
assert grid.resolution(0) == 1.0
def test_grid(self):
for level, grid_size in [(0, (1, 1)), (1, (2, 1)), (2, (4, 2))]:
yield self.check_grid, level, grid_size
def test_adjacent_tile_bbox(self):
grid = TileGrid(is_geodetic=True,
bbox=(-10, 30, 10, 40),
tile_size=(20, 20))
t1 = grid.tile_bbox((0, 0, 2))
t2 = grid.tile_bbox((1, 0, 2))
t3 = grid.tile_bbox((0, 1, 2))
assert t1[1] == t2[1]
assert t1[3] == t2[3]
assert t1[2] == t2[0]
assert t1[0] == t3[0]
assert t1[2] == t3[2]
assert t1[3] == t3[1]
def test_w_resolution(self):
res = [1, 0.5, 0.2]
grid = TileGrid(is_geodetic=True,
bbox=(-10, 30, 10, 40),
tile_size=(20, 20),
res=res)
assert grid.grid_sizes[0] == (1, 1)
assert grid.grid_sizes[1] == (2, 1)
assert grid.grid_sizes[2] == (5, 3)
def test_tile(self):
assert self.grid.tile(-180, -90, 0) == (0, 0, 0)
assert self.grid.tile(-180, -90, 1) == (0, 0, 1)
assert self.grid.tile(-180, -90, 2) == (0, 0, 2)
assert self.grid.tile(180 - 0.001, 90 - 0.001, 0) == (0, 0, 0)
assert self.grid.tile(10, 50, 1) == (1, 0, 1)
def test_affected_tiles(self):
bbox, grid_size, tiles = \
self.grid.get_affected_tiles((-45,-45,45,45), (512,512))
assert self.grid.grid_sizes[3] == (8, 4)
assert bbox == (-45.0, -45.0, 45.0, 45.0)
assert grid_size == (2, 2)
tiles = list(tiles)
assert tiles == [(3, 2, 3), (4, 2, 3), (3, 1, 3), (4, 1, 3)]
class TestGeodeticTileGrid(TileGridTest):
def setup(self):
self.grid = TileGrid(is_geodetic=True, )
def test_auto_resolution(self):
grid = TileGrid(is_geodetic=True, bbox=(-10, 30, 10, 40), tile_size=(20, 20))
tile_bbox = grid.tile_bbox((0, 0, 0))
assert tile_bbox == (-10, 30, 10, 50)
assert grid.resolution(0) == 1.0
def test_grid(self):
for level, grid_size in [(0, (1, 1)), (1, (2, 1)), (2, (4, 2))]:
yield self.check_grid, level, grid_size
def test_adjacent_tile_bbox(self):
grid = TileGrid(is_geodetic=True, bbox=(-10, 30, 10, 40), tile_size=(20, 20))
t1 = grid.tile_bbox((0, 0, 2))
t2 = grid.tile_bbox((1, 0, 2))
t3 = grid.tile_bbox((0, 1, 2))
assert t1[1] == t2[1]
assert t1[3] == t2[3]
assert t1[2] == t2[0]
assert t1[0] == t3[0]
assert t1[2] == t3[2]
assert t1[3] == t3[1]
def test_w_resolution(self):
res = [1, 0.5, 0.2]
grid = TileGrid(is_geodetic=True, bbox=(-10, 30, 10, 40), tile_size=(20, 20), res=res)
assert grid.grid_sizes[0] == (1, 1)
assert grid.grid_sizes[1] == (2, 1)
assert grid.grid_sizes[2] == (5, 3)
def test_tile(self):
assert self.grid.tile(-180, -90, 0) == (0, 0, 0)
assert self.grid.tile(-180, -90, 1) == (0, 0, 1)
assert self.grid.tile(-180, -90, 2) == (0, 0, 2)
assert self.grid.tile(180-0.001, 90-0.001, 0) == (0, 0, 0)
assert self.grid.tile(10, 50, 1) == (1, 0, 1)
def test_affected_tiles(self):
bbox, grid_size, tiles = \
self.grid.get_affected_tiles((-45,-45,45,45), (512,512))
assert self.grid.grid_sizes[3] == (8, 4)
assert bbox == (-45.0, -45.0, 45.0, 45.0)
assert grid_size == (2, 2)
tiles = list(tiles)
assert tiles == [(3, 2, 3), (4, 2, 3), (3, 1, 3), (4, 1, 3)]
