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RE: SDWIG activities

From: <sa-takagi@kddi.com>
Date: Fri, 11 Jan 2019 09:37:38 +0000
To: "Rushforth, Peter (NRCan/RNCan)" <peter.rushforth@canada.ca>, Linda van den Brink <l.vandenbrink@geonovum.nl>, "'public-sdwig@w3.org'" <public-sdwig@w3.org>
CC: "Francois Daoust (fd@w3.org)" <fd@w3.org>, "'Jeremy Tandy'" <jtandy@wmo.int>
Message-ID: <TYAPR01MB2352848922EF503D0F18DA1899850@TYAPR01MB2352.jpnprd01.prod.outlook.com>
Hi Linda and Peter,
Thank you very much for paying attention to tiling. Since mapping with SVG is designed not to be bound by a specific tiling method as described on the slide*1, Quad tree composite tiling is just one tiling method. Of course it is also possible to use TMS or classic non-tiled WMS. I think that it is useful for the Web Mapping framework to be able to easily implement various tiling methods.

As I investigated briefly, Cesium 3D Tiles*2 seems to have a similar concept. However, I did not know whether it refers to the extension of the tiling method by javascript apps.

* 1: https://www.slideshare.net/totipalmate/quad-tree-composite-tiling-in-english#15 .. #21
* 2: https://github.com/AnalyticalGraphicsInc/3d-tiles/tree/master/specification

Regards,

Satoru

-----Original Message-----
From: Rushforth, Peter (NRCan/RNCan) <peter.rushforth@canada.ca> 
Sent: Thursday, January 10, 2019 12:14 AM
To: Linda van den Brink <l.vandenbrink@geonovum.nl>; 高木 悟 <sa-takagi@kddi.com>; 'public-sdwig@w3.org' <public-sdwig@w3.org>
Cc: Francois Daoust (fd@w3.org) <fd@w3.org>; 'Jeremy Tandy' <jtandy@wmo.int>
Subject: RE: SDWIG activities

Hi Linda and Satoru,

In the coming months I plan to evaluate if the composite quadtree tiling scheme invented by Satoru will integrate well with the MapML approach (which is based on 'regular' tiling / coordinate systems). I am optimistic that if we approach it in the spirit of intending to make it work, it will work and very well. This (composite quadtree tiling in SVG) being a geospatial concept developed by a W3C member using W3C technology, I think represents an excellent opportunity to prove the value of collaboration between the W3C and OGC membership.   

Thanks,
Peter


Peter Rushforth

Technology Advisor
Canada Centre for Mapping and Earth Observation Natural Resources Canada / Government of Canada peter.rushforth@canada.ca / Tel: 613-759-7915

Conseiller technique
Centre canadien de cartographie et d’observation de la Terre Ressources naturelles Canada / Gouvernement du Canada peter.rushforth@canada.ca / Tél: 613-759-7915


> -----Original Message-----
> From: Linda van den Brink <l.vandenbrink@geonovum.nl>
> Sent: January 9, 2019 2:33 AM
> To: sa-takagi@kddi.com; 'public-sdwig@w3.org' <public-sdwig@w3.org>
> Cc: Francois Daoust (fd@w3.org) <fd@w3.org>; 'Jeremy Tandy'
> <jtandy@wmo.int>
> Subject: RE: SDWIG activities
> 
> Thank you Satoru, I had missed that issue you posted in the web-roadmaps
> repo. It sounds relevant!
> 
> @SDWIG members, is anyone in this group willing to check this out and see if
> it should be added to the SDW roadmap?
> 
> Linda
> 
> -----Oorspronkelijk bericht-----
> Van: sa-takagi@kddi.com <sa-takagi@kddi.com>
> Verzonden: woensdag 9 januari 2019 02:27
> Aan: Linda van den Brink <l.vandenbrink@geonovum.nl>; 'public-
> sdwig@w3.org' <public-sdwig@w3.org>
> CC: Francois Daoust (fd@w3.org) <fd@w3.org>; 'Jeremy Tandy'
> <jtandy@wmo.int>
> Onderwerp: RE: SDWIG activities
> 
> Hi,
> I posted an issue to OGC-Web-API-Guidelines about term of tiling
> https://github.com/opengeospatial/OGC-Web-API-Guidelines/issues/32

> 
> And related posts are
> https://discourse.wicg.io/t/vector-tiling-on-svgmap/3135

> https://github.com/w3c/web-roadmaps/issues/322

> 
> Regards,
> 
> Satoru
> 
> -----Original Message-----
> From: Linda van den Brink <l.vandenbrink@geonovum.nl>
> Sent: Tuesday, January 8, 2019 7:52 PM
> To: 'public-sdwig@w3.org' <public-sdwig@w3.org>
> Cc: Francois Daoust (fd@w3.org) <fd@w3.org>; 'Jeremy Tandy'
> <jtandy@wmo.int>
> Subject: SDWIG activities
> 
> Hi all,
> 
> 
> 
> I wish every member of this group a very happy 2019! Both standards-wise
> and in your personal lives, of course.
> 
> 
> 
> We have not singled this week out as a ‘focus week’, but we might as well
> use it as such – at least I’m using it as an excuse to look at the group’s
> activities.
> 
> 
> 
> First of all I’d like to suggest we have a group telecon some time in January.
> I’ll coordinate with Jeremy and François to come up with a time slot. Topics:
> 
> *	To solicit feedback on some work I’ve done on the SDW roadmap in
> December
> *	To coordinate work on a formal response on CityGML v3 raising
> technical concerns to be sent to the tc-discuss OGC list (issue 1069)
> https://github.com/w3c/sdw/issues/1069

> *	To settle on dates + locations for the f2f meetings in 2019. Basically
> the choice is between:
> 
> 	*	Last week of February at OGC meeting in Singapore + 16-20
> September at W3C TPAC in Fukuoka, Japan
> 	*	24-28 June at OGC meeting in Leuven, Belgium + 16-20
> September at W3C TPAC in Fukuoka, Japan
> 
> *	To coordinate review of the OGC Architecture Board’s API Guidelines
> https://github.com/opengeospatial/OGC-Web-API-Guidelines

> *	To coordinate what to do with comments received on eo-qb doc (see
> https://lists.w3.org/Archives/Public/public-sdwig/2018Nov/0094.html)
> *	To discuss OWL Space idea (should we move this one to the strategy
> funnel? Move discussion to OGC GeoSemantics DWG?)
> https://github.com/w3c/sdw/issues/1095

> *	Short updates on SDWIG projects
> https://github.com/w3c/sdw/projects

> <https://github.com/w3c/sdw/projects>
> 
> Maybe not all of these can fit in one telecon, but that also depends on how
> much we let the discussion drift into details. It’s my intention to avoid that
> when we can.
> 
> Please respond if you have other topics you want to discuss!
> 
> 
> 
> Here’s an overview of what I have observed to be going on in SDWIG lately:
> 
> *	Rob has continued work on WebVMT; this is progressing.
> *	Nicholas Car (CSIRO, also active in DXWG) has posted some
> suggestions for a new GeoSPARQL version.
> https://lists.w3.org/Archives/Public/public-sdwig/2019Jan/0007.html

> *	Ingo Simonis is asking the SDWIG group if we think someone from
> OGC staff should attend the Workshop on Web Standardization for Graph
> Data (the one Dave Raggett is organising this March)
> *	People are apparently working with EO-QB because some issues have
> popped up. We have no active group members who were involved in this
> document, however we should discuss what to do with these issues.
> 
> 	*	https://github.com/w3c/sdw/issues/1110

> 	*	https://github.com/w3c/sdw/issues/1108

> 	*	Also a comment + PR about use of the SWEET ontology in this
> document https://github.com/w3c/sdw/issues/1103

> 
> *	The DXWG asks our review and feedback on the Profiles ontology:
> https://lists.w3.org/Archives/Public/public-sdwig/2019Jan/0000.html

> *	We have new members (both invited experts, via OGC, Natural
> Resources Canada):
> 
> 	*	Joost van Ulden
> 	*	Tom Kradalis - interested in helping on items relevant to
> weather services implementation, dataset search discovery, and CovJSON.
> 
> *	Nothing to report on our other work items as far as I know.
> 
> Linda

Received on Friday, 11 January 2019 09:40:41 UTC

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