[mapserver-dev] Vector Tile Production...

Basques, Bob (CI-StPaul) bob.basques at ci.stpaul.mn.us
Tue Sep 8 13:48:52 PDT 2015


All,

I can come out on the vote for projection support right now.  As I think about it, it seems like it might be more work to NOT include projections, at least based on the MapServer template outputting.

I would also suspect that this type of feature description would quickly start a conversation about 3D (or 2.5D at the very least) types of constructs.

bobb


On Sep 8, 2015, at 3:20 PM, Rahkonen Jukka (MML) <jukka.rahkonen at maanmittauslaitos.fi<mailto:jukka.rahkonen at maanmittauslaitos.fi>> wrote:

Hi,

There is a blog post from Stefan Henneberger http://www.salzburgresearch.at/blog/geoserver-rendering-binary-vector-tiles/ that gives some background.
If the aim is simply to serve vectors in web Mercator to be rendered on the client side then probably the MVT way would be fine. Perhaps with some modified GetStyles request that would return styles as Style JSON could be a good pair with it or what do you think?

I can imagine that very soon there will be a wish to use vector tiles for data transfer instead of WFS. It may introduce demands for having support for projections, more geometry types, schema,  and need to decide what to do with features which are crossing tile boundaries and other complicated things like how to download only tiles which are changed since last access. A common OSGeo specification could be nice to have at that stage, I do not believe that such things bother MapBox so much.


-Jukka Rahkonen-



Lime, Steve D wrote:

The fact ESRI is following the MapBox spec instead of creating their own lends a great deal of credibility to the MapBox work. I’ve not run across any competing specs – has anyone else? I would assume both OL3 and Leaflet would be target client environments. --Steve

From: Tamas Szekeres [mailto:szekerest at gmail.com]
Sent: Tuesday, September 08, 2015 1:54 PM
To: Lime, Steve D (MNIT) <Steve.Lime at state.mn.us<mailto:Steve.Lime at state.mn.us>>
Cc: thomas bonfort <thomas.bonfort at gmail.com<mailto:thomas.bonfort at gmail.com>>; mapserver-dev at lists.osgeo.org<mailto:mapserver-dev at lists.osgeo.org>
Subject: Re: [mapserver-dev] Vector Tile Production...

Do we already have a standard to follow when implementing this? As far as I know ESRI followed the mapbox vector tile spec<https://github.com/mapbox/vector-tile-spec>but that is bound to a specific company. What would be the client side application we are targeting to consume the vector tiles?

Best regards,

Tamas


2015-09-08 18:27 GMT+02:00 Lime, Steve D (MNIT) <Steve.Lime at state.mn.us<mailto:Steve.Lime at state.mn.us>>:
Should we start work on an RFC then? I can get a skeletal one in place but this enhancement should encompass both MapServer and MapCache at the same time IMHO...

Steve

-----Original Message-----
From: thomas bonfort [mailto:thomas.bonfort at gmail.com<mailto:thomas.bonfort at gmail.com>]
Sent: Monday, September 07, 2015 12:51 PM
To: Lime, Steve D (MNIT) <Steve.Lime at state.mn.us<mailto:Steve.Lime at state.mn.us>>
Cc: mapserver-dev at lists.osgeo.org<mailto:mapserver-dev at lists.osgeo.org>
Subject: Re: [mapserver-dev] Vector Tile Production...

That's definitely something we should be looking into I'd say.

--
thomas

On 27 July 2015 at 20:45, Lime, Steve D (MNIT) <Steve.Lime at state.mn.us<mailto:Steve.Lime at state.mn.us>> wrote:
> With 7.0 out the door I’m wondering if makes sense to look forward at all to
> being able to produce vector tiles with the MapServer/MapCache stack. It’s
> been a hot topic with our GIS staff with ESRI announcing some preview
> capabilities with vector tiles tied to the MapBox spec. --Steve
>
>
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