[mapserver-users] mapserver-users Digest, Vol 66, Issue 8

[Kent Richards]

> I got a question off-list asking what UTFGrid is about, here are more 
> info for those not familiar with UTFGrid yet:
> 
> UTFGrid is way to encode feature attribute information to add 
> interactivity in a tiled map environment (e.g. using mouse-over to 
> display tooltips with attribute info on top of tiles). It was initially 
> developed by MapBox devs for use with TileMIll and MBTiles.

In my experience, one of the benefits of UTFGrid is lower bandwidth.

While other methods of getting interactivity exist (such as with polygon vertices used by Leaflet), UTFGrid enables the same sort of interactivity with less data transfer.

Kent

On Jul 5, 2013, at 12:00 PM, mapserver-users-request at lists.osgeo.org wrote:

> Send mapserver-users mailing list submissions to
> 	mapserver-users at lists.osgeo.org
> 
> To subscribe or unsubscribe via the World Wide Web, visit
> 	http://lists.osgeo.org/mailman/listinfo/mapserver-users
> or, via email, send a message with subject or body 'help' to
> 	mapserver-users-request at lists.osgeo.org
> 
> You can reach the person managing the list at
> 	mapserver-users-owner at lists.osgeo.org
> 
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of mapserver-users digest..."
> 
> 
> Today's Topics:
> 
>   1. GSoC project: UTFGrid output support in MapServer
>      (Daniel Morissette)
>   2. Re: GSoC project: UTFGrid output support in	MapServer
>      (Daniel Morissette)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Fri, 05 Jul 2013 14:05:48 -0400
> From: Daniel Morissette <dmorissette at mapgears.com>
> To: mapserver-users <mapserver-users at lists.osgeo.org>, 	'MapServer Dev
> 	List' <mapserver-dev at lists.osgeo.org>
> Subject: [mapserver-users] GSoC project: UTFGrid output support in
> 	MapServer
> Message-ID: <51D70AFC.9020406 at mapgears.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> Hi MapServer Users and Devs,
> 
> I realize that this message comes a bit late, but FYI, this summer the 
> MapServer project has a student working on UTFGrid output as part of 
> Google Summer of Code. We had drafted a RFC back in the spring and he is 
> implementing this approach in his project 
> (http://mapserver.org/development/rfc/ms-rfc-93.html)
> 
> The student is Fran?ois Desjarlais from Laval University in Quebec City. 
> We have been working with him off-list since the end of May, and for the 
> rest of the summer we will try to communicate more openly on the 
> mapserver-dev list about this project.
> 
> For those interested, his progress including weekly reports and links to 
> his source and demos can be followed in the github wiki at:
> 
> https://github.com/mapserver/mapserver/wiki/GSoC-UTF-Grid-implementation
> 
> I can tell you that he's got a first dev version of his driver producing 
> some UTFGrids out of MapServer polygon layers (WMS GetMap requests) and 
> working in OpenLayers. There is still lots of work do be done to 
> complete/polish the implementation and have full support, but he's 
> already up to a great start.
> 
> Welcome Fran?ois to the MapServer project and have a great summer with us!
> 
> Daniel
> -- 
> Daniel Morissette
> http://www.mapgears.com/
> Provider of Professional MapServer Support since 2000
> 
> 
> 
> ------------------------------
> 
> Message: 2
> Date: Fri, 05 Jul 2013 14:26:46 -0400
> From: Daniel Morissette <dmorissette at mapgears.com>
> To: mapserver-users <mapserver-users at lists.osgeo.org>, 	'MapServer Dev
> 	List' <mapserver-dev at lists.osgeo.org>
> Subject: Re: [mapserver-users] GSoC project: UTFGrid output support in
> 	MapServer
> Message-ID: <51D70FE6.2060801 at mapgears.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> I got a question off-list asking what UTFGrid is about, here are more 
> info for those not familiar with UTFGrid yet:
> 
> UTFGrid is way to encode feature attribute information to add 
> interactivity in a tiled map environment (e.g. using mouse-over to 
> display tooltips with attribute info on top of tiles). It was initially 
> developed by MapBox devs for use with TileMIll and MBTiles.
> 
> Since a demo is worth a thousand words, see:
> 
> http://www.mapbox.com/demo/visiblemap/
> 
> and for all the details, see the spec at:
> 
> https://github.com/mapbox/utfgrid-spec
> 
> Daniel
> 
> 
> On 13-07-05 2:05 PM, Daniel Morissette wrote:
>> Hi MapServer Users and Devs,
>> 
>> I realize that this message comes a bit late, but FYI, this summer the
>> MapServer project has a student working on UTFGrid output as part of
>> Google Summer of Code. We had drafted a RFC back in the spring and he is
>> implementing this approach in his project
>> (http://mapserver.org/development/rfc/ms-rfc-93.html)
>> 
>> The student is Fran?ois Desjarlais from Laval University in Quebec City.
>> We have been working with him off-list since the end of May, and for the
>> rest of the summer we will try to communicate more openly on the
>> mapserver-dev list about this project.
>> 
>> For those interested, his progress including weekly reports and links to
>> his source and demos can be followed in the github wiki at:
>> 
>> https://github.com/mapserver/mapserver/wiki/GSoC-UTF-Grid-implementation
>> 
>> I can tell you that he's got a first dev version of his driver producing
>> some UTFGrids out of MapServer polygon layers (WMS GetMap requests) and
>> working in OpenLayers. There is still lots of work do be done to
>> complete/polish the implementation and have full support, but he's
>> already up to a great start.
>> 
>> Welcome Fran?ois to the MapServer project and have a great summer with us!
>> 
>> Daniel
> 
> 
> -- 
> Daniel Morissette
> http://www.mapgears.com/
> Provider of Professional MapServer Support since 2000
> 
> 
> 
> ------------------------------
> 
> _______________________________________________
> mapserver-users mailing list
> mapserver-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapserver-users
> 
> 
> End of mapserver-users Digest, Vol 66, Issue 8
> **********************************************