def tile(self, z, x, y):
"""
Render the specified tile with Mapnik
"""
logger.debug(_("Render tile %s") % ((z, x, y), ))
proj = GoogleProjection(self.tilesize, [z])
return self.render(proj.tile_bbox((z, x, y)))
def tile(self, z, x, y):
"""
Render the specified tile with Mapnik
"""
logger.debug(_("Render tile %s") % ((z, x, y),))
proj = GoogleProjection(self.tilesize, [z])
return self.render(proj.tile_bbox((z, x, y)))
def grid(self, z, x, y, fields, layer):
"""
Render the specified grid with Mapnik
"""
logger.debug(_("Render grid %s") % ((z, x, y),))
proj = GoogleProjection(self.tilesize, [z])
return self.render_grid(proj.tile_bbox((z, x, y)), fields, layer)
def grid(self, z, x, y, fields, layer):
"""
Render the specified grid with Mapnik
"""
logger.debug(_("Render grid %s") % ((z, x, y), ))
proj = GoogleProjection(self.tilesize, [z])
return self.render_grid(proj.tile_bbox((z, x, y)), fields, layer)
def tile(self, z, x, y):
logger.debug(_("Request WMS tile %s") % ((z, x, y),))
proj = GoogleProjection(self.tilesize, [z])
bbox = proj.tile_bbox((z, x, y))
bbox = proj.project(bbox[:2]) + proj.project(bbox[2:])
bbox = ','.join(map(str, bbox))
# Build WMS request URL
encodedparams = urllib.urlencode(self.wmsParams)
url = "%s?%s" % (self.url, encodedparams)
url += "&bbox=%s" % bbox # commas are not encoded
r = DOWNLOAD_RETRIES
sleeptime = 1
while r > 0:
try:
logger.debug(_("Download '%s'") % url)
request = urllib2.Request(url)
for header, value in self.headers.items():
request.add_header(header, value)
f = urllib2.urlopen(request)
header = f.info().typeheader
assert header == self.wmsParams['format'], "Invalid WMS response type : %s" % header
return f.read()
except (AssertionError, IOError, httplib.HTTPException), e:
logger.debug(_("Download error, retry (%s left). (%s)") % (r, e))
r -= 1
time.sleep(sleeptime)
# progressivly sleep longer to wait for this tile
if (sleeptime <= 10) and (r % 2 == 0):
sleeptime += 1 # increase wait
def tile(self, z, x, y):
proj = GoogleProjection(self.tilesize, [z])
bbox = proj.tile_bbox((z, x, y))
bbox = proj.project(bbox[:2]) + proj.project(bbox[2:])
bbox = ','.join(map(str, bbox))
# Build WMS request URL
encodedparams = urllib.urlencode(self.wmsParams)
url = "%s?%s" % (self.url, encodedparams)
url += "&bbox=%s" % bbox # commas are not encoded
try:
logger.debug(_("Download '%s'") % url)
f = urllib.urlopen(url)
header = f.info().typeheader
assert header == self.wmsParams['format'], "Invalid WMS response type : %s" % header
return f.read()
except (AssertionError, IOError), e:
raise ExtractionError
def tile(self, z, x, y):
logger.debug(_("Request WMS tile %s") % ((z, x, y), ))
proj = GoogleProjection(self.tilesize, [z])
bbox = proj.tile_bbox((z, x, y))
bbox = proj.project(bbox[:2]) + proj.project(bbox[2:])
bbox = ','.join(map(str, bbox))
# Build WMS request URL
encodedparams = urllib.urlencode(self.wmsParams)
url = "%s?%s" % (self.url, encodedparams)
url += "&bbox=%s" % bbox # commas are not encoded
try:
logger.debug(_("Download '%s'") % url)
f = urllib2.urlopen(url)
header = f.info().typeheader
assert header == self.wmsParams[
'format'], "Invalid WMS response type : %s" % header
return f.read()
except (AssertionError, IOError):
raise ExtractionError
