[mapserver-users] Mapcache with mapfile as layer

[Pablo Cecconi]

The problem with that approach is that is the mapfile changes (a layer is
added or the default status of a layer changes) then I also have to update
mapcache config file. What i wonder is if there is a way to just modify the
map and have Mapcache reflecting that change.

Pablo


On Thu, Sep 19, 2013 at 4:40 PM, Stephen Woodbridge <woodbri at swoodbridge.com
> wrote:

> 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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