def render_locator_map(city_slug, size=(75, 75), extension='png'):
map_srs = SpatialReference(settings.SPATIAL_REF_SYS)
bbox = city_extent_in_map_srs(city_slug)
mapserver = get_mapserver('locator')(map_srs.proj4,
width=size[0],
height=size[1])
mapserver.zoom_to_bbox(*bbox)
return mapserver(extension)
def renderTile(self, tile):
"""
Overrides MetaLayer's renderTile method
Returns the raw bytes of the rendered tile.
"""
# The bbox will be in map projection units, not (necessarily) lat/lng
tile_bbox = tile.bounds()
width, height = tile.size()
mapserver = get_mapserver(self.name)(self.dest_srs, width=width, height=height)
mapserver.zoom_to_bbox(*tile_bbox)
mimetype = 'image/%s' % self.extension
# Calling the mapserver instance gives the raw bytestream
# of the tile image
tile.data = mapserver(mimetype)
return tile.data
def renderTile(self, tile):
"""
Overrides MetaLayer's renderTile method
Returns the raw bytes of the rendered tile.
"""
# The bbox will be in map projection units, not (necessarily) lat/lng
tile_bbox = tile.bounds()
width, height = tile.size()
mapserver = get_mapserver(self.name)(self.dest_srs, width=width, height=height)
mapserver.zoom_to_bbox(*tile_bbox)
mimetype = 'image/%s' % self.extension
# Calling the mapserver instance gives the raw bytestream
# of the tile image
tile.data = mapserver(mimetype)
return tile.data
def render_locator_map(city_slug, size=(75,75), extension='png'):
map_srs = SpatialReference(settings.SPATIAL_REF_SYS)
bbox = city_extent_in_map_srs(city_slug)
mapserver = get_mapserver('locator')(map_srs.proj4, width=size[0], height=size[1])
mapserver.zoom_to_bbox(*bbox)
return mapserver(extension)
def get_citywide_mapserver(maptype, size=(75,75), extension=None):
map_srs = SpatialReference(settings.SPATIAL_REF_SYS)
mapserver = get_mapserver(maptype)(map_srs.proj4, width=size[0], height=size[1])
return mapserver
