[Qgis-developer] Any plans for implementing vector tile generation on QGIS Server?

[René-Luc Dhont]

Hi,

I have some code to build a vector tile based on qgsVectorLayer but I 
have not yet time to build a QGIS Server Plugin to use it. I'll be 
pleased to do it.

Regards,
René-Luc

Le 19/06/2016 02:36, Thomas Gratier a écrit :
> Hi,
>
> Although it will not change the issue to support vector tiles in QGIS 
> Server, TileStache does support PBF. It's just that you need the 
> forked version from Mapzen e.g 
> https://github.com/mapzen/TileStache/blob/integration-1/TileStache/Goodies/VecTiles/mvt.py
>
> Cheers
>
> Thomas Gratier
>
> 2016-06-19 1:51 GMT+02:00 Nikolai Bezdna <mofoyoda at gmail.com 
> <mailto:mofoyoda at gmail.com>>:
>
>     Hi Marco,
>
>     As far as I know vector tiles can’t be generated out of WMS
>     services, because WMS spec is mostly used for getting raster
>     images (GetMap request) or feature information (GetFeatureInfo
>     request) and some others.
>     I guess you meant WFS really, but I don’t know any caching server
>     implementations that use WFS as a background and generate vector
>     tiled PBFs (particularly in Mapbox Vector Tiles spec
>     <https://github.com/mapbox/vector-tile-spec>).
>     I didn’t use MapServer MapCache
>     <http://www.mapserver.org/mapcache/>, but according to the docs
>     it doesn’t support vector tiles, only raster ones. MapProxy and
>     TileCache don’t support them either. TileStache can produce vector
>     tiles out of OGR datasource, but in GeoJSON format, which is way
>     heavier than PBF, even gzipped.
>     So the good way to go would be to use the OGR MVT driver, but
>     unfortunately it’s not released and the status of it’s development
>     is unknown. While web is moving fast towards in-browser rendering
>     (OpenLayers3 and Mapbox GL already utilise WebGL for that) it’s
>     becoming clear QGIS server should support vector tiles at some
>     point. Should I start with a feature request maybe?
>
>     Regards,
>     Nick
>
>     From: Marco Hugentobler <marco.hugentobler at sourcepole.ch
>     <mailto:marco.hugentobler at sourcepole.ch>>
>     To: qgis-developer at lists.osgeo.org
>     <mailto:qgis-developer at lists.osgeo.org>
>     Subject: Re: [Qgis-developer] Any plans for implementing vector tile
>     generation on QGIS Server?
>     Message-ID: <5765066C.3000905 at sourcepole.ch
>     <mailto:5765066C.3000905 at sourcepole.ch>>
>     Content-Type: text/plain; charset="utf-8"; Format="flowed"
>
>     Hi Nikolai
>
>     Most vector tile generators can work with any WMS in the background.
>     E.g. using MapCache with QGIS server should be perfectly possible.
>
>     Regards,
>     Marco
>
>     On 06/18/16 10:13, Nikolai Bezdna wrote:
>>     I’d like to know if there are any plans for enabling serving vector
>>     tiles from QGIS Server, so they can be used in client libraries like
>>     Mapbox GL afterwards. Seems like GDAL (OGR really) MVT driver is
>>     stuck
>>     in development and there already are some stand-alone
>>     implementations,
>>     like utilery (https://github.com/tilery/utilery) or Mapnik vector
>>     tile
>>     (https://github.com/mapbox/mapnik-vector-tile), but nothing is
>>     integrated with QGIS server. Since Mapbox and ESRI adopted MVT, and
>>     most major web basemaps (like Google, Apple etc.) are already vector
>>     tile based, it seems like QGIS is running a bit behind in this
>>     field.
>>     So it would be great to start a discussion on utilising vector tile
>>     spec within QGIS.
>>
>>     Cheers
>
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