[mapserver-users] mapcache question

[thomas bonfort]

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
<tkirstine at 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.bonfort at gmail.com]
> Sent: August-25-16 3:55 AM
> To: Lime, Steve D (MNIT) <Steve.Lime at state.mn.us>
> Cc: Travis Kirstine <tkirstine at firstbasesolutions.com>; Jukka Sirviö <Jukka.Sirvio at mipro.fi>; mapserver-users at 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.Lime at 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-bounces at lists.osgeo.org]
>> On Behalf Of Travis Kirstine
>> Sent: Wednesday, August 24, 2016 1:14 PM
>> To: Jukka Sirviö <Jukka.Sirvio at mipro.fi>;
>> mapserver-users at 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-bounces at lists.osgeo.org]
>> On Behalf Of Jukka Sirviö
>> Sent: August-24-16 10:09 AM
>> To: mapserver-users at 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
>>
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