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The Mapping Engine will return either a URL to the generated image or a binary stream of data containing in the requested image format. The image is then sent to the client directly
from the Weave server. This approach allows the Mapping Engine Software to remain within the bounds of the secure network as the Weave client does not need to know how or where to get the map, it asks Weave and Weave will do all the communications with the Map Engine.
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