[mapserver-users] mapcache - multiple resolutions for the same grid

[thomas bonfort]

<tileset>
  <grid minzoom="0" maxzoom="19">...</grid>
</tileset>

should do the trick...

On 4 March 2013 17:14, Travis Kirstine <traviskirstine at gmail.com> wrote:
> I have set up mapcache with a generic grid for all my caches.  The grid has
> resolutions defined for zoom levels 0-21, however depending on the
> resolution of my source data the tileset may only be seeded to level 19.
> The tileset no longer has the ability to connect to the source.  As a result
> blank images are displayed the when a client using the mapcache WMS zooms in
> beyond the max resolution.  Is there a way to address this without creating
> additional grids?
>
>
>    <!-- Google Grid for >=10cm Levels 0-21 -->
>    <grid name="gmaps">
>       <metadata>
>          <title>GoogleMapsCompatible</title>
>
> <WellKnownScaleSet>urn:ogc:def:wkss:OGC:1.0:GoogleMapsCompatible</WellKnownScaleSet>
>       </metadata>
>       <extent>-20037508.3427892480 -20037508.3427892480 20037508.3427892480
> 20037508.3427892480</extent>
>       <srs>EPSG:3857</srs>
>       <srsalias>EPSG:900913</srsalias>
>       <units>m</units>
>       <size>256 256</size>
>       <resolutions>156543.0339280410 78271.51696402048 39135.75848201023
> 19567.87924100512 9783.939620502561 4891.969810251280 2445.984905125640
> 1222.992452562820 611.4962262814100 305.7481131407048 152.8740565703525
> 76.43702828517624 38.21851414258813 19.10925707129406 9.554628535647032
> 4.777314267823516 2.388657133911758 1.194328566955879 0.5971642834779395
> 0.29858214173896975 0.149291070869484875 0.0746455354347424375</resolutions>
>    </grid>
>
>  <tileset name="0237DURH_cache">
>      <!--source>0237DURH</source-->
>      <cache>disk</cache>
>      <grid restricted_extent="-8831574.381510 5432633.752429 -8731299.465116
> 5547099.028228">gmaps</grid>
>      <format>mixed</format>
>      <metatile>4 4</metatile>
>      <metabuffer>0</metabuffer>
>    </tileset>
>
> Thanks!
>
>
>
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