def test_map_tiles(self):
"""
Test map tiles calculation
"""
center = 11.788137, 46.481832
zoom = 17
size = 300, 300
map = Map(center=center, zoom=zoom, size=size)
coord, corner = _find_top_left_tile(map)
tiles = _find_tiles(map, coord, corner)
self.assertEqual(4, len(tiles))
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
t1, t2, t3, t4 = tiles
# first row
self.assertEqual((69827, 46376), t1[0], t1[0])
self.assertEqual((-88, -44), t1[1])
self.assertEqual((69828, 46376), t2[0], t2[0])
self.assertEqual((-88 + 256, -44), t2[1])
# second row
self.assertEqual((69827, 46377), t3[0], t3[0])
self.assertEqual((-88, -44 + 256), t3[1])
self.assertEqual((69828, 46377), t4[0], t4[0])
self.assertEqual((-88 + 256, -44 + 256), t4[1])
def test_map_tiles(self):
"""
Test map tiles calculation
"""
center = 11.788137, 46.481832
zoom = 17
size = 300, 300
map = Map(center=center, zoom=zoom, size=size)
coord, corner = _find_top_left_tile(map)
tiles = _find_tiles(map, coord, corner)
self.assertEqual(4, len(tiles))
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
t1, t2, t3, t4 = tiles
# first row
self.assertEqual((69827, 46376), t1[0], t1[0])
self.assertEqual((-88, -44), t1[1])
self.assertEqual((69828, 46376), t2[0], t2[0])
self.assertEqual((-88 + 256, -44), t2[1])
# second row
self.assertEqual((69827, 46377), t3[0], t3[0])
self.assertEqual((-88, -44 + 256), t3[1])
self.assertEqual((69828, 46377), t4[0], t4[0])
self.assertEqual((-88 + 256, -44 + 256), t4[1])
def test_map_top_left_offset_calculation_12(self):
"""
Test calculation of offset of top-left map tile (zoom 12)
"""
center = 11.788137, 46.481832
zoom = 12
size = 2000, 2000
map = Map(center=center, zoom=zoom, size=size)
assert map.size == (2000, 2000), map.size
assert map.zoom == 12, map.zoom
assert map.origin == (2182, 1449), map.origin
assert map.offset == (-31, -70), map.offset
coord, offset = _find_top_left_tile(map)
self.assertEqual(2178, coord[0], coord)
self.assertEqual(1445, coord[1], coord)
self.assertEqual((-55, -94), offset)
def test_map_top_left_offset_calculation(self):
"""
Test calculation of offset of top-left map tile
"""
center = 11.788137, 46.481832
zoom = 17
size = 3000, 3000
map = Map(center=center, zoom=zoom, size=size)
assert map.size == (3000, 3000), map.size
assert map.zoom == 17, map.zoom
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
coord, offset = _find_top_left_tile(map)
self.assertEqual(69822.000, coord[0])
self.assertEqual(46370.000, coord[1])
self.assertEqual((-18, -230), offset)
def test_map_corner_calculation_12(self):
"""
Test calculation of map corner (zoom 12)
"""
center = 11.788137, 46.481832
zoom = 12
size = 2000, 2000
map = Map(center=center, zoom=zoom, size=size)
assert map.size == (2000, 2000), map.size
assert map.zoom == 12, map.zoom
assert map.origin == (2182, 1449), map.origin
assert map.offset == (-31, -70), map.offset
coord, corner = _find_top_left_tile(map)
self.assertEqual(2178, coord[0], coord)
self.assertEqual(1445, coord[1], coord)
self.assertEqual((-55, -94), corner)
def test_map_corner_calculation(self):
"""
Test calculation of map corner
"""
center = 11.788137, 46.481832
zoom = 17
size = 3000, 3000
map = Map(center=center, zoom=zoom, size=size)
assert map.size == (3000, 3000), map.size
assert map.zoom == 17, map.zoom
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
coord, corner = _find_top_left_tile(map)
self.assertEqual(69822.000, coord[0])
self.assertEqual(46370.000, coord[1])
self.assertEqual((-18, -230), corner)
def test_map_tile_offsets(self):
"""
Test calculation of image offsets of map tiles
"""
center = 11.788137, 46.481832
zoom = 17
size = 300, 300
map = Map(center=center, zoom=zoom, size=size)
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
coord, offset = _find_top_left_tile(map)
offsets = tuple(_tile_offsets(map, offset))
o1, o2, o3, o4 = offsets
# first col
self.assertEqual((-88, -44), o1, offsets)
self.assertEqual((-88, -44 + 256), o2, offsets)
# second col
self.assertEqual((-88 + 256, -44), o3, offsets)
self.assertEqual((-88 + 256, -44 + 256), o4, offsets)
def test_map_tile_coords(self):
"""
Test calculation of coordinates of map tiles
"""
center = 11.788137, 46.481832
zoom = 17
size = 300, 300
map = Map(center=center, zoom=zoom, size=size)
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
coord, offset = _find_top_left_tile(map)
coords = tuple(_tile_coords(map, coord, offset))
c1, c2, c3, c4 = coords
# first col
self.assertEqual((69827, 46376), c1, coords)
self.assertEqual((69827, 46377), c2, coords)
# second col
self.assertEqual((69828, 46376), c3, coords)
self.assertEqual((69828, 46377), c4, coords)
def test_map_tile_offsets(self):
"""
Test calculation of image offsets of map tiles
"""
center = 11.788137, 46.481832
zoom = 17
size = 300, 300
map = Map(center=center, zoom=zoom, size=size)
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
coord, offset = _find_top_left_tile(map)
offsets = tuple(_tile_offsets(map, offset))
o1, o2, o3, o4 = offsets
# first col
self.assertEqual((-88, -44), o1, offsets)
self.assertEqual((-88, -44 + 256), o2, offsets)
# second col
self.assertEqual((-88 + 256, -44), o3, offsets)
self.assertEqual((-88 + 256, -44 + 256), o4, offsets)
def test_map_tile_coords(self):
"""
Test calculation of coordinates of map tiles
"""
center = 11.788137, 46.481832
zoom = 17
size = 300, 300
map = Map(center=center, zoom=zoom, size=size)
assert map.origin == (69827, 46376), map.origin
assert map.offset == (-238, -194), map.offset
coord, offset = _find_top_left_tile(map)
coords = tuple(_tile_coords(map, coord, offset))
c1, c2, c3, c4 = coords
# first col
self.assertEqual((69827, 46376), c1, coords)
self.assertEqual((69827, 46377), c2, coords)
# second col
self.assertEqual((69828, 46376), c3, coords)
self.assertEqual((69828, 46377), c4, coords)
