[mapserver-dev] RFC 119 - Vector Tiles...

[Lime, Steve D (MNIT)]

1)      There is coordinate thinning (as is done with drawing) done depending on the requested extent and tile size. I don’t recall the exact algorithm but can dig that out. Once you dip below the resolution of your data then you’d see the same feature over and over again since no thinning can be done. Clients like MapBox GL retain features between zooms so you quit sending a layer past the point where they are full-resolution and the client can still render them when zooming. The client and server can have difference min/max scales.

2)      Yes, it should be – although I haven’t tested explicitly. It’s basically map draw…

From: Denis Rykov [mailto:rykovd at gmail.com]
Sent: Friday, July 21, 2017 12:36 PM
To: Lime, Steve D (MNIT) <steve.lime at state.mn.us>
Cc: mapserver-dev at lists.osgeo.org
Subject: Re: [mapserver-dev] RFC 119 - Vector Tiles...

Hello! I have a couple of MVT-related questions:
1) What about geometry simplification? It is expected that for particular zoom level some nodes will have the same coordinates.
2) Is it possible to use inline features for MVT?

On Fri, Jul 21, 2017 at 2:35 PM, Lime, Steve D (MNIT) <steve.lime at state.mn.us<mailto:steve.lime at state.mn.us>> wrote:
RFC URL is... http://mapserver.org/development/rfc/ms-rfc-119.html.
________________________________
From: mapserver-dev <mapserver-dev-bounces at lists.osgeo.org<mailto:mapserver-dev-bounces at lists.osgeo.org>> on behalf of Lime, Steve D (MNIT) <steve.lime at state.mn.us<mailto:steve.lime at state.mn.us>>
Sent: Thursday, July 20, 2017 4:46:20 PM
To: mapserver-dev at lists.osgeo.org<mailto:mapserver-dev at lists.osgeo.org>
Subject: [mapserver-dev] RFC 119 - Vector Tiles...

Call for review please. I need to add the syntax changes for MapCache but that’s about it. Associated pull requests are:


-          https://github.com/mapserver/mapserver/pull/5376

-          https://github.com/mapserver/mapcache/pull/166

Steve

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