Dear Andrea:

Thank you very much for the information. We had already verified that by 
replacing capabilities parameters we can control the final result. Our problem 
is more focused on integrating new caches into capabilities files with other 
maps created longer ago and in a different way.

We will try to resolve it another way.

All the best.
Miguel Ángel,


De: Andrea Aime <andrea.a...@geosolutionsgroup.com>
Enviado el: lunes, 20 de mayo de 2024 15:17
Para: Miguel Ángel Parrilla Godínez <maparri...@itracasa.es>
CC: geoserver-users@lists.sourceforge.net
Asunto: Re: [Geoserver-users] Cache Geoserver 2.23.1. Row - Column order.

Hi Miguel, the slipppy map definition is not coming from OGC/WMTS, it's coming 
from the likes of OpenStreetMap and uses a z/x/y order. For reference: https: 
//en. wikipedia. org/wiki/Tiled_web_map [en. wikipedia. org] https: //wiki. 
openstreetmap. org/wiki/Slippy_map

Hi Miguel,
the slipppy map definition is not coming from OGC/WMTS, it's coming from
the likes of OpenStreetMap and uses a z/x/y order. For reference:

https://en.wikipedia.org/wiki/Tiled_web_map 
[en.wikipedia.org]<https://urldefense.com/v3/__https:/en.wikipedia.org/wiki/Tiled_web_map__;!!PP8-hIym!I0Xk8ja5pF3CWfMBCkzIdGCI-OlX6zAc6p3m-1KlhjyttIMDQ5_vgX-rocP31K1eIfGxvqY6ca9CXzStAh5yIJ6OpdIinwIF$>
https://wiki.openstreetmap.org/wiki/Slippy_map 
[wiki.openstreetmap.org]<https://urldefense.com/v3/__https:/wiki.openstreetmap.org/wiki/Slippy_map__;!!PP8-hIym!I0Xk8ja5pF3CWfMBCkzIdGCI-OlX6zAc6p3m-1KlhjyttIMDQ5_vgX-rocP31K1eIfGxvqY6ca9CXzStAh5yIJ6OpeX-0RfX$>

The current code does not allow to generate a z/y/x layout, but it would be 
possible to get it
with small code modifications in GeoWebCache.

A note about WMTS... in both the KVP and RESTful implementations the URLs have
named, position independent parameters that a client has to follow and replace.
For example, this is the URl template for a restful KVP:

https://testServer/geoserver/gwc/service/wmts/rest/myLayer/{style}/{TileMatrixSet}/{TileMatrix}/{TileRow}/{TileCol}?format=image/png
 
[testserver]<https://urldefense.com/v3/__https:/testServer/geoserver/gwc/service/wmts/rest/myLayer/*7Bstyle*7D/*7BTileMatrixSet*7D/*7BTileMatrix*7D/*7BTileRow*7D/*7BTileCol*7D?format=image*png__;JSUlJSUlJSUlJS8!!PP8-hIym!I0Xk8ja5pF3CWfMBCkzIdGCI-OlX6zAc6p3m-1KlhjyttIMDQ5_vgX-rocP31K1eIfGxvqY6ca9CXzStAh5yIJ6OpUEukmgx$>

but this one is also valid (it's up to the server to define the URL template):

https:// testServer  
/geoserver/gwc/service/wmts/rest/myLayer/{style}/{TileMatrixSet}/{TileMatrix}/{TileCol}/{TileRow}?format=image/png

The job of the WMTS client is to take the URL template and replace parameters 
by name, without bothering about their position in the URL.



Regards,

Andrea Aime



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On Mon, May 20, 2024 at 12:32 PM Miguel Ángel Parrilla Godínez via 
Geoserver-users 
<geoserver-users@lists.sourceforge.net<mailto:geoserver-users@lists.sourceforge.net>>
 wrote:
Hello

We are generating caches with geoserver 2.23.1, using a Slippy blobstore. In 
the result obtained, we can see that the order of columns and rows is not the 
same as that shown in the OGC WMTS (https://www.ogc.org/standard/wmts/ 
[ogc.org]<https://urldefense.com/v3/__https:/www.ogc.org/standard/wmts/__;!!PP8-hIym!I0Xk8ja5pF3CWfMBCkzIdGCI-OlX6zAc6p3m-1KlhjyttIMDQ5_vgX-rocP31K1eIfGxvqY6ca9CXzStAh5yIJ6OpUMIFN8j$>)
 standard.
That is, in the standard it is observed that the configuration of the 
capablities file is as follows:
{TileMatrix}/{TileRow}/{TileCol}.png
While now the result requires you to make the following configuration:
{TileMatrix}/{TileCol}/{TileRow}.png

What's the reason for that?
Is it possible to configure the final order of rows and columns in geoserver?
Thanks a lot.

Miguel Ángel.

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