def __init__(self, layer, osmFile, watermark, cacheDir):
import TileCache.Service
from TileCache.Caches.Disk import Disk
from TileCache.Layers.Mapnik import Mapnik
self.layer = Mapnik(layer,
mapfile=osmFile,
watermarkimage=watermark,
watermarkopacity=1.0)
self.tileService = TileCache.Service(Disk(cacheDir),
{"layer": self.layer})
def get_eb_layer(name):
# svc = Service.load(settings.TILECACHE_CONFIG)
mapfile = r"/data/oceancolor/terra/L3m/2017/001/T2017001_L3m_DAY_NSST_sst_4km.map"
svc = Service(
Disk('/tmp/somecache'), # See "Cache Invalidation", below
{
"raster":
MS.MapServer("basic",
mapfile,
layers="raster",
srs='EPSG:4326',
debug=False),
})
'''
svc = Service(
Disk('/tmp/somecache'), # See "Cache Invalidation", below
{
"raster": WMS.WMS("basic", r"http://localhost/cgi-bin/mapserv.cgi?map=/data/oceancolor/aqua/L3m/2017/001/A2017001.L3m_DAY_SST_sst_4km.map&mode=map&layer=raster", srs='EPSG:4326', width='256', height='256'),
}
)
'''
return svc.layers[name]
# hackish way to grab style obj and avoid parsing XML each request...
m = mapnik.Map(1, 1)
mapnik.load_map(m, settings.MAPNIK_STYLESHEET)
style = m.find_style('style')
del m
srv = None
if settings.CACHE_SEARCH_METHOD == 'mem':
srv = Service(
Memcached(),
{}, # layers are dynamic
)
else:
srv = Service(
Disk(settings.CACHE_SEARCH_DISK_PATH),
{}, # layers are dynamic
)
query_hash = {}
class TileResponse(object):
def __init__(self, tile_bytes):
self.tile_bytes = tile_bytes
def __call__(self, extension='png'):
if self.tile_bytes:
# mod_python handler in django borkes unless mimetype is string
return HttpResponse(self.tile_bytes,
mimetype=str('image/%s' % extension))
def set(self, tile, data):
data = optimize_png(data)
Disk.set(self, tile, data)
def set(self, tile, data):
data = optimize_png(data)
Disk.set(self, tile, data)
def __init__ (self, **kwargs):
Disk.__init__(self, **kwargs)
warnings.warn("GoogleDisk type is deprecated. use a Disk cache and set the structure to google", DeprecationWarning)