def __init__(self, lat, lon, radius):
super(LLTileFilter, self).__init__()
self.lat = lat
self.lon = lon
self.radius = radius
# ll bounds
self.bounds = calculateBoundingBox(lat, lon, radius)
log_info('LLTileFilter', 'Filter Bounds: %s' % repr(self.bounds))
# zoom bounds
self.zoom_boundaries = {}
def __init__(self, lat, lon, radius):
super(LLTileFilter, self).__init__()
self.lat = lat
self.lon = lon
self.radius = radius
# ll bounds
self.bounds = calculateBoundingBox(lat, lon, radius)
log_info("LLTileFilter", "Filter Bounds: %s" % repr(self.bounds))
# zoom bounds
self.zoom_boundaries = {}
def apply(self, message):
"""Filters tiles based on a central lat/lon and radius"""
zoom = message.data.get('z', None)
if zoom is None:
return False
if not zoom in self.zoom_boundaries:
top_left_tile = deg2tile(self.bounds.top_left.lat,
self.bounds.top_left.lon, zoom)
bottom_right_tile = deg2tile(self.bounds.bottom_right.lat,
self.bounds.bottom_right.lon, zoom)
# cache zoom boundaries
self.zoom_boundaries[zoom] = TileBounds(top_left_tile.x,
bottom_right_tile.x,
top_left_tile.y,
bottom_right_tile.y)
log_info(
'LLTileFilter', 'Level %s Zoom Bounds: %s' %
(zoom, repr(self.zoom_boundaries[zoom])))
# get tile bounds and current tile location
tile_bounds = self.zoom_boundaries[zoom]
xtile = message.data.get('x', None)
ytile = message.data.get('y', None)
# valid message
if ytile is not None and xtile is not None:
log_debug('LLTileFilter',
'Filtering Tile: %s' % repr(Tile(xtile, ytile)))
log_debug('LLTileFilter', 'Tile Bounds: %s' % repr(tile_bounds))
# check bounds
if xtile >= tile_bounds.left and xtile <= tile_bounds.right \
and ytile >= tile_bounds.top and ytile <= tile_bounds.bottom:
return True
# tile is either not in bounds or message is invalid
return False
def apply(self, message):
"""Filters tiles based on a central lat/lon and radius"""
zoom = message.data.get("z", None)
if zoom is None:
return False
if not zoom in self.zoom_boundaries:
top_left_tile = deg2tile(self.bounds.top_left.lat, self.bounds.top_left.lon, zoom)
bottom_right_tile = deg2tile(self.bounds.bottom_right.lat, self.bounds.bottom_right.lon, zoom)
# cache zoom boundaries
self.zoom_boundaries[zoom] = TileBounds(
top_left_tile.x, bottom_right_tile.x, top_left_tile.y, bottom_right_tile.y
)
log_info("LLTileFilter", "Level %s Zoom Bounds: %s" % (zoom, repr(self.zoom_boundaries[zoom])))
# get tile bounds and current tile location
tile_bounds = self.zoom_boundaries[zoom]
xtile = message.data.get("x", None)
ytile = message.data.get("y", None)
# valid message
if ytile is not None and xtile is not None:
log_debug("LLTileFilter", "Filtering Tile: %s" % repr(Tile(xtile, ytile)))
log_debug("LLTileFilter", "Tile Bounds: %s" % repr(tile_bounds))
# check bounds
if (
xtile >= tile_bounds.left
and xtile <= tile_bounds.right
and ytile >= tile_bounds.top
and ytile <= tile_bounds.bottom
):
return True
# tile is either not in bounds or message is invalid
return False
def downloadTile(root, message):
data = message.data
dirpath = os.path.join(root, str(data.z), str(data.x))
if not os.path.exists(dirpath):
os.makedirs(dirpath)
# filepath
filepath = os.path.join(dirpath, '%s.png' % data.y)
if not os.path.exists(filepath):
with open(filepath, 'wb') as handle:
response = requests.get(data.url, stream=True, verify=False)
if not response.ok:
log_error(response)
else:
log_info('DOWNLOADER', data.url)
for block in response.iter_content(1024 * 16):
if not block:
break
handle.write(block)
def downloadTile(root, message):
data = message.data
dirpath = os.path.join(root, str(data.z), str(data.x))
if not os.path.exists(dirpath):
os.makedirs(dirpath)
# filepath
filepath = os.path.join(dirpath, "%s.png" % data.y)
if not os.path.exists(filepath):
with open(filepath, "wb") as handle:
response = requests.get(data.url, stream=True, verify=False)
if not response.ok:
log_error(response)
else:
log_info("DOWNLOADER", data.url)
for block in response.iter_content(1024 * 16):
if not block:
break
handle.write(block)
