There's no on the fly reprojection of an exisiting cache, so to be able to serve the same tileset/layer under multiple SRSs you'll need to have one cache per srs/grid.
-- thomas On 25 August 2016 at 15:33, Travis Kirstine <tkirst...@firstbasesolutions.com> wrote: > Unrelated question: Can mapcache handle multiple srs in a WMS service (out)? > > -----Original Message----- > From: thomas bonfort [mailto:thomas.bonf...@gmail.com] > Sent: August-25-16 8:56 AM > To: Travis Kirstine <tkirst...@firstbasesolutions.com> > Cc: Lime, Steve D (MNIT) <steve.l...@state.mn.us>; Jukka Sirviö > <jukka.sir...@mipro.fi>; mapserver-users@lists.osgeo.org > Subject: Re: [mapserver-users] mapcache question > > The reprojection is done inside MapCache, i.e. as a client of the original > tiles. You don't need an additional WMS :) > > -- > thomas > > On 25 August 2016 at 14:50, Travis Kirstine > <tkirst...@firstbasesolutions.com> wrote: >> I believe that there still would be an issue as the reprojection from X to >> Y, the reprojection would need to be done on the source WMTS side. I guess >> you could proxy the source WMTS using mapserver with the gdal mini driver >> and reproject to create a WMS to feed mapcache? >> >> -----Original Message----- >> From: thomas bonfort [mailto:thomas.bonf...@gmail.com] >> Sent: August-25-16 3:55 AM >> To: Lime, Steve D (MNIT) <steve.l...@state.mn.us> >> Cc: Travis Kirstine <tkirst...@firstbasesolutions.com>; Jukka Sirviö >> <jukka.sir...@mipro.fi>; mapserver-users@lists.osgeo.org >> Subject: Re: [mapserver-users] mapcache question >> >> Jukka, >> in master, there is also support for any GDAL dataset as a mapcache source >> (i.e. in addition to wms). If you use that in addition to a GDAL >> TMS/WMS/WMTS minidriver you'll be able to reproject/store third party tiles >> on the fly. >> >> -- >> thomas >> >> On 24 August 2016 at 21:58, Lime, Steve D (MNIT) <steve.l...@state.mn.us> >> wrote: >>> I would think reprojection of individual tiles into another set of tiles >>> that would stitch back together without artifacts would be difficult. I >>> thought MapCache did support native MapServer mode=map as a source which >>> could useful if GDAL supports WMTS and you could create a corresponding >>> MapServer layer. >>> >>> -----Original Message----- >>> From: mapserver-users >>> [mailto:mapserver-users-boun...@lists.osgeo.org] >>> On Behalf Of Travis Kirstine >>> Sent: Wednesday, August 24, 2016 1:14 PM >>> To: Jukka Sirviö <jukka.sir...@mipro.fi>; >>> mapserver-users@lists.osgeo.org >>> Subject: Re: [mapserver-users] mapcache question >>> >>> Jukka, >>> >>> According to the docs mapcache only support WMS as input. >>> >>> " A source is a service mod-mapcache can query to obtain image data. This >>> is typically a WMS server accessible by a URL. (There are currently no >>> sources other than WMS implemented, though others may be added later if the >>> need arises)" >>> >>> If this is still true then your proposed chain will not work. >>> >>> MapProxy will support a tiled source and I know TMS works (not sure >>> about WMTS) and handle the reprojection >>> >>> Regards >>> >>> -----Original Message----- >>> From: mapserver-users >>> [mailto:mapserver-users-boun...@lists.osgeo.org] >>> On Behalf Of Jukka Sirviö >>> Sent: August-24-16 10:09 AM >>> To: mapserver-users@lists.osgeo.org >>> Subject: [mapserver-users] mapcache question >>> >>> >>> Hello, >>> I would like to put a mapcache to be in the middle, in the following chain: >>> >>> 1) original wmts service in local/national crs x --> 2) mapcache wmts, >>> reprojection to world-wide crs y (3857) --> 3) user interface (OpenLayers >>> v2, Qgis), also in crs y >>> >>> Mapcache was compiled, and is working a-ok with demo data. But I have >>> trouble to configure mapcache to work as a part in the above chain. As >>> planned, Mapcache should work as a WMTS client down towards target 1 and >>> WMTS server up against target 3, ie. kind of a proxy with crs reprojection >>> and basic auth. Anyway, does this make any sense at all, or is the draft >>> totally irrational? >>> >>> If the draft is reasonable, could you give some hints on how to proceed >>> related to configuration with mapcache.xml? >>> >>> >>> >>> -Jukka >>> >>> ________________________________ >>> >>> Tämä sähköpostiviesti (liitteineen) saattaa sisältää luottamuksellista >>> tietoa, joka on tarkoitettu vain vastaanottajalleen. Jos et ole oikea >>> vastaanottaja, ilmoita viestin lähettäjälle tapahtuneesta virheestä ja >>> tuhoa viesti välittömästi. 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