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

[Stéphane Brunner]

Hello,

At Camptocamp we don't have any plan yet, but we are interesting in this
subject.

The pbf mapnik-vector-tile seam to be a good chose :-)

CU
Stéphane

2016-06-19 10:10 GMT+02:00 Marco Hugentobler <
marco.hugentobler at sourcepole.ch>:

> Hi Nikolai
>
> Oh sorry, was reading the mail in a rush and meant raster tiles.
>
> I don't have much experience with vector tiles. Afaik, they come without
> symbolisation? If yes, is there a reason why the vector tile serving needs
> to be inside QGIS server?  Or could you just use another application that
> you point to the datasource?
> E.g. there is an interesting new project called t-rex (
> https://github.com/pka/t-rex), afaik it supports PBF.
>
> Regards,
> Marco
>
>
> Am 19.06.2016 um 01:51 schrieb Nikolai Bezdna:
>
> 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>
> To: 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>
> 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
>
>
>
> --
> Dr. Marco Hugentobler
> Sourcepole -  Linux & Open Source Solutions
> Weberstrasse 5, CH-8004 Zürich, Switzerlandmarco.hugentobler at sourcepole.ch http://www.sourcepole.ch
> Technical Advisor QGIS Project Steering Committee
>
>
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-- 
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