def __init__(self, resolutions, max_extent=None, tile_size=None, scale=1, flip_y=False):
TileStructure.__init__(self, max_extent=max_extent, tile_size=tile_size, flip_y=flip_y)
assert list(resolutions) == sorted(resolutions, reverse=True)
assert all(isinstance(r, int) for r in resolutions)
self.resolutions = resolutions
self.scale = 1 if scale is 1 else float(scale)
self.parent_zs = []
self.child_zs = []
for i, resolution in enumerate(self.resolutions):
for parent in xrange(i - 1, -1, -1):
if self.resolutions[parent] % resolution == 0:
self.parent_zs.append(parent)
self.child_zs[parent].append(i)
break
else:
self.parent_zs.append(None)
self.child_zs.append([])
def __init__(self, max_extent=None, tile_size=None, max_zoom=None, flip_y=False):
TileStructure.__init__(self, max_extent=max_extent, tile_size=tile_size, flip_y=flip_y)
self.max_zoom = max_zoom
