Oops! Correction: My map services typically look like: (forgot the cgi-bin path)
http://servername/fcgi-bin/myservice?LAYERS=layer1,layer2,...&REQUEST=GetMap&SERVICE=WMS&;.. .. - John On Tue, Feb 7, 2012 at 4:41 PM, John Callahan <[email protected]>wrote: > Thanks for the help but I think I'm misunderstanding mapcache at a more > basic level. > > What is the mapcachealias? In the apache httpd.conf file (using the > latest MS4W), there is > > MapCacheAlias /mapcache "C:/ms4w/apps/mapcache/mapcache.xml" > > How does that relate to my own mapservices? What changes do I need to > make to have them cached? My mapservices typically look like > > > http://servername/myservice?LAYERS=layer1,layer2,...&REQUEST=GetMap&SERVICE=WMS&;.. > .. > > > Something else that seems strange is when looking at the demo ( > http://servername/mapcache/dem/wms), it makes available additional layers > based on entries in the current mapcache.xml file. When I try to select my > own service through the demo interface, I see that it makes a GetMap > request with LAYERS = tileset name. Does the name I define for the tileset > in mapcache.xml have to be specific to my map service? or any special > requirements? > > Thanks for your help. > > - John > > > > > > On Wed, Feb 1, 2012 at 6:56 AM, thomas bonfort > <[email protected]>wrote: > >> On Thu, Jan 26, 2012 at 19:30, John Callahan <[email protected]> >> wrote: >> > I'm giving mapcache a try but with no luck. Well, some luck. The >> module >> > loads fine and the demo (vmap0, http://127.0.0.1/mapcache/demo/wms) >> also >> > works fine. I see the tiles being generated on disk. Great. However, >> the >> > problem comes in with my own data/services. A few questions may help me >> > determine the problem. >> > >> > - in the source element, how do you define multiple layers? Comma >> separated >> > or separate <layers> entries? >> >> <layers>layer1,layer2</layers> >> >> > >> > - in the tileset element, can you have multiple grid entries? It >> doesn't >> > seem like it from reading the documentation but the sample tileset shows >> > both the "g" and "WGS84" grids. >> which doc part does not show this? >> http://www.mapserver.org/trunk/mapcache/config.html#tileset >> >> > >> > - for cache type attributes, what are the possible values? The docs >> show >> > several possibilities (disk, sqllite, memcache) but the sample shows >> > type="tiff" which is not listed on the doc page. Can other file >> extensions >> > be used here? >> http://www.mapserver.org/trunk/mapcache/caches.html >> >> > >> > - when I define a FORMAT with name and type, how does that get used? I >> see >> > that is called in the tileset but how does that relate to the image type >> > under getmap/params/format? >> >> The format is used when recompressing individual tiles after having >> cut a larger metatile. It is also used when combining multiple tiles >> into a single image for a getmap request. If you want to force a >> specific format to be sent to the source wms server when creating a >> tile, you can add a <format>foobar</format> to your source definition >> (at the same level as the <layers> parameter). Both formats don't have >> to be equivalent, it is actually a good idea to request the images in >> png from the source wms server even when using a jpeg format for the >> the tileset, as this will avoid a double jpeg compression (once on the >> wms server, once on the mapcache server) when storing an individual >> tile to the caches. >> >> regards, >> thomas >> >> > >> > >> > The doc page I am referring to is >> > at http://www.mapserver.org/trunk/mapcache/config.html. I'm sure I'll >> have >> > other questions as I work my way through. Thanks for this awesome >> addition >> > to Mapserver! >> > >> > - John >> > >> > *********************************************** >> > John Callahan, Research Scientist >> > Delaware Geological Survey, University of Delaware >> > URL: http://www.dgs.udel.edu >> > ************************************************* >> > >> > >> > _______________________________________________ >> > mapserver-users mailing list >> > [email protected] >> > http://lists.osgeo.org/mailman/listinfo/mapserver-users >> > >> > >
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