Пример #1
0
	def getMetadata(self):
		response = util.fetchJson("%s?key=%s" % (self.metadataPath, self.bingMapsKey))
		if "errorDetails" not in response:
			data = response["resourceSets"][0]["resources"][0]
			self.tileWidth = data["imageWidth"]
			self.tileHeight = data["imageHeight"]
			self.imageUrl = data["imageUrl"]
			self.imageUrlSubdomains = data["imageUrlSubdomains"]
			self.zoomMax = data["zoomMax"]
			self.numSubdomains = len(self.imageUrlSubdomains)
		else:
			logging.error("Unknown response from the server")
			sys.exit(-1)
Пример #2
0
	def getMaxZoom(self, bbox):
		(bottom, left) = util.toSphMercator(bbox[1], bbox[0])
		(top, right) = util.toSphMercator(bbox[3], bbox[2])
		(centerY, centerX) = util.toGeographic((top+bottom)/2, (left+right)/2)
		zoom = self.zoomMax
		while True:
			response = util.fetchJson("%s/%s,%s?zl=%s&key=%s" % (self.metadataPath, centerY, centerX, zoom, self.bingMapsKey))
			if "errorDetails" not in response:
				data = response["resourceSets"][0]["resources"][0]
				if data["vintageEnd"]: break
			else:
				logging.error("Unknown response from the server")
				sys.exit(-1)
			zoom = zoom-1
		return zoom