Hey you guys,
I used a large gray image as a store, and then used tile caching to make
it display faster. Do the tile caches apply only to the gray image? I'm
guessing yes since the cached tiles are stored as PNG/GIF/JPG and not
GeoTiffs themselves, but wasn't sure. For example, it's theoretically
possible that GeoServer reads the gray tile and changes the colormap
before sending it to the client.
Are cached tiles only used if the client requests tiled mode? I'm again
guessing yes, but it's possible that tile caches make it easier to
assemble images at lower zoom levels. However, it's possible GeoServer
uses the data directly when tiled mode is not requested.
Suppose I create a tile cache using the PNG8 format. Can GeoServer tell or
force the client to only requests maps in this format? I assume that, if
the client requests JPG format, the tiles are of no use to me (unless
GeoServer does PNG8 to JPG conversion on the fly), so I'd like the client
to use the most efficient method.
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