On 9/19/2013 3:02 PM, Pablo Cecconi wrote:
Hello,
I've been a Mapserver user for many years now but I'm new to Mapcache
and I'm not sure whether it's possible to replicate a particular
TileCache setup using Mapcache.
What we have today is a number of mapfiles (with Mapserver 5.4) set up
as WMS-C layers served with TileCache. We're migrating to Mapserver
6.2.1 and as it's incompatible with TileCache we expect to be able to
replace it using Mapcache.
In our current setup if I have a mapfile where a particular layer has
STATUS OFF then TileCache will honor that status and not render the layer.
I'd like to know whether it's possible to have MapCache work that way,
that is, passing the map name as the LAYERS parameter of the WMS service
and make it honor whatever STATUS a particular layer would have in the
mapfile.
I think the mapcache paradigm for this in mapcache works like this:
tileset
name=foo
source=foo-source
source
name=foo-source
map=/path/to/mapfile
layers=layer1,layer2,layers3,...
So you can configure which layers a tileset returns. I'm not sure how it
deals with the status off, but it will work if you define the list
explicitly. This also allow you to do this in the same mapcache.xml
tileset
name=foo2
source=foo-source2
source
name=foo-source2
map=/path/to/mapfile
layers=streets,...
transparent=true
I do this a lot when I have a subset of data like streets that I want to
render as an overly on a raster image
-Steve W
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