def __init__(self,
server="dds.cr.usgs.gov",
directory="/srtm/version2_1/SRTM3/",
cachedir=None,
offline=0):
if cachedir is None:
try:
cachedir = os.path.join(os.environ['HOME'], '.tilecache/SRTM')
except Exception:
cachedir = os.path.join(tempfile.gettempdir(), 'MAVProxySRTM')
self.offline = offline
self.first_failure = False
self.server = server
self.directory = directory
self.cachedir = cachedir
'''print "SRTMDownloader - server= %s, directory=%s." % \
(self.server, self.directory)'''
if not os.path.exists(cachedir):
mp_util.mkdir_p(cachedir)
self.filelist = {}
self.filename_regex = re.compile(
r"([NS])(\d{2})([EW])(\d{3})\.hgt\.zip")
self.filelist_file = os.path.join(self.cachedir, "filelist_python")
self.childFileListDownload = None
self.childTileDownload = None
def __init__(self, server="dds.cr.usgs.gov",
directory="/srtm/version2_1/SRTM3/",
cachedir=None,
offline=0):
if cachedir is None:
try:
cachedir = os.path.join(os.environ['HOME'], '.tilecache/SRTM')
except Exception:
cachedir = os.path.join(tempfile.gettempdir(), 'MAVProxySRTM')
self.offline = offline
self.first_failure = False
self.server = server
self.directory = directory
self.cachedir = cachedir
'''print "SRTMDownloader - server= %s, directory=%s." % \
(self.server, self.directory)'''
if not os.path.exists(cachedir):
mp_util.mkdir_p(cachedir)
self.filelist = {}
self.filename_regex = re.compile(
r"([NS])(\d{2})([EW])(\d{3})\.hgt\.zip")
self.filelist_file = os.path.join(self.cachedir, "filelist_python")
self.childFileListDownload = None
self.childTileDownload = None
def __init__(self, cache_path=None, download=True, cache_size=500,
service="MicrosoftSat", tile_delay=0.3, debug=False,
max_zoom=19):
if cache_path is None:
try:
cache_path = os.path.join(os.environ['HOME'], '.tilecache')
except Exception:
cache_path = os.path.join(tempfile.gettempdir(), 'MAVtilecache')
if not os.path.exists(cache_path):
mp_util.mkdir_p(cache_path)
self.cache_path = cache_path
self.max_zoom = max_zoom
self.min_zoom = 1
self.download = download
self.cache_size = cache_size
self.tile_delay = tile_delay
self.service = service
self.debug = debug
if service not in TILE_SERVICES:
raise TileException('unknown tile service %s' % service)
# _download_pending is a dictionary of TileInfo objects
self._download_pending = {}
self._download_thread = None
self._loading = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..', 'data', 'loading.jpg')
self._unavailable = os.path.join(os.path.dirname(os.path.realpath(__file__)), '..', 'data', 'unavailable.jpg')
self._tile_cache = collections.OrderedDict()
def downloader(self):
'''the download thread'''
http = httplib2.Http()
while self.tiles_pending() > 0:
time.sleep(self.tile_delay)
keys = self._download_pending.keys()[:]
# work out which one to download next, choosing by request_time
tile_info = self._download_pending[keys[0]]
for key in keys:
if self._download_pending[
key].request_time > tile_info.request_time:
tile_info = self._download_pending[key]
url = tile_info.url(self.service)
path = self.tile_to_path(tile_info)
key = tile_info.key()
try:
if self.debug:
print("Downloading %s [%u left]" % (url, len(keys)))
resp, img = http.request(url)
except httplib2.HttpLib2Error as e:
#print('Error loading %s' % url)
self._tile_cache[key] = self._unavailable
self._download_pending.pop(key)
if self.debug:
print("Failed %s: %s" % (url, str(e)))
continue
if 'content-type' not in resp or resp['content-type'].find(
'image') == -1:
self._tile_cache[key] = self._unavailable
self._download_pending.pop(key)
if self.debug:
print("non-image response %s" % url)
continue
# see if its a blank/unavailable tile
md5 = hashlib.md5(img).hexdigest()
if md5 in BLANK_TILES:
if self.debug:
print("blank tile %s" % url)
self._tile_cache[key] = self._unavailable
self._download_pending.pop(key)
continue
mp_util.mkdir_p(os.path.dirname(path))
h = open(path + '.tmp', 'w')
h.write(img)
h.close()
os.rename(path + '.tmp', path)
self._download_pending.pop(key)
self._download_thread = None
def downloader(self):
'''the download thread'''
http = httplib2.Http()
while self.tiles_pending() > 0:
time.sleep(self.tile_delay)
keys = self._download_pending.keys()[:]
# work out which one to download next, choosing by request_time
tile_info = self._download_pending[keys[0]]
for key in keys:
if self._download_pending[key].request_time > tile_info.request_time:
tile_info = self._download_pending[key]
url = tile_info.url(self.service)
path = self.tile_to_path(tile_info)
key = tile_info.key()
try:
if self.debug:
print("Downloading %s [%u left]" % (url, len(keys)))
resp,img = http.request(url)
except httplib2.HttpLib2Error as e:
#print('Error loading %s' % url)
self._tile_cache[key] = self._unavailable
self._download_pending.pop(key)
if self.debug:
print("Failed %s: %s" % (url, str(e)))
continue
if 'content-type' not in resp or resp['content-type'].find('image') == -1:
self._tile_cache[key] = self._unavailable
self._download_pending.pop(key)
if self.debug:
print("non-image response %s" % url)
continue
# see if its a blank/unavailable tile
md5 = hashlib.md5(img).hexdigest()
if md5 in BLANK_TILES:
if self.debug:
print("blank tile %s" % url)
self._tile_cache[key] = self._unavailable
self._download_pending.pop(key)
continue
mp_util.mkdir_p(os.path.dirname(path))
h = open(path+'.tmp','w')
h.write(img)
h.close()
os.rename(path+'.tmp', path)
self._download_pending.pop(key)
self._download_thread = None
def __init__(self, server="dds.cr.usgs.gov",
directory="/srtm/version2_1/SRTM3/",
cachedir=os.path.join(os.environ['HOME'], '.tilecache/SRTM'),
offline=0):
self.offline = offline
self.server = server
self.directory = directory
self.cachedir = cachedir
'''print "SRTMDownloader - server= %s, directory=%s." % \
(self.server, self.directory)'''
if not os.path.exists(cachedir):
mp_util.mkdir_p(cachedir)
self.filelist = {}
self.filename_regex = re.compile(
r"([NS])(\d{2})([EW])(\d{3})\.hgt\.zip")
self.filelist_file = self.cachedir + "/filelist_python"
self.childFileListDownload = None
self.childTileDownload = None
def __init__(self,
cache_path=None,
download=True,
cache_size=500,
service="MicrosoftSat",
tile_delay=0.3,
debug=False,
max_zoom=19):
if cache_path is None:
try:
cache_path = os.path.join(os.environ['HOME'], '.tilecache')
except Exception:
cache_path = os.path.join(tempfile.gettempdir(),
'MAVtilecache')
if not os.path.exists(cache_path):
mp_util.mkdir_p(cache_path)
self.cache_path = cache_path
self.max_zoom = max_zoom
self.min_zoom = 1
self.download = download
self.cache_size = cache_size
self.tile_delay = tile_delay
self.service = service
self.debug = debug
if service not in TILE_SERVICES:
raise TileException('unknown tile service %s' % service)
# _download_pending is a dictionary of TileInfo objects
self._download_pending = {}
self._download_thread = None
self._loading = os.path.join(
os.path.dirname(os.path.realpath(__file__)), '..', 'data',
'loading.jpg')
self._unavailable = os.path.join(
os.path.dirname(os.path.realpath(__file__)), '..', 'data',
'unavailable.jpg')
self._tile_cache = collections.OrderedDict()
