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From: Rees, Gethin <[log in to unmask]>
Sent: Friday, January 11, 2019 9:52 AM
To: Maps-L: Map Librarians, etc.
Subject: RE: MAPS-L Digest - 9 Jan 2019 to 10 Jan 2019 (#2019-8)
Dear Evan,
Great question! However this is a big topic and really depends on the tiles in question.
We are currently looking at archiving various Ordnance Survey web map tiles adding Marc metadata and could also use some input.
There are several standards for serving web map tiles:
https://gis.stackexchange.com/questions/132242/what-are-the-differences-between-tms-xyz-wmts
[[log in to unmask]]" target="_blank">https:[log in to unmask]]<https://gis.stackexchange.com/questions/132242/what-are-the-differences-between-tms-xyz-wmts>
What are the Differences Between TMS, XYZ & WMTS?<https://gis.stackexchange.com/questions/132242/what-are-the-differences-between-tms-xyz-wmts>
gis.stackexchange.com
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Some of these have fixed directory/file structures that specify geographical position and zoom level which can be used to provide bounding box metadata. Conversion to a single standard might be necessary for long-term preservation of a range of datasets.
Vector and raster tiles will probably also have different archiving considerations.
I would be happy to discuss this with you further, do please send me an email.
Best,
Gethin
Dr Gethin Rees
Lead Curator, Digital Mapping
British Library
+44 (0)2074127218
-----Original Message-----
From: Maps-L: Map Librarians, etc. <[log in to unmask]> On Behalf Of MAPS-L automatic digest system
Sent: 11 January 2019 05:00
To: [log in to unmask]
Subject: MAPS-L Digest - 9 Jan 2019 to 10 Jan 2019 (#2019-8)
There are 3 messages totaling 1775 lines in this issue.
Topics of the day:
1. Ports of Entry US Mexico border
2. Recommendation for vertical map storage cabinets
3. Archiving web map tiles
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Date: Fri, 11 Jan 2019 00:22:39 +0000
From: "Thornberry, Evan" <[log in to unmask]>
Subject: Archiving web map tiles
Hi all,
I’m wondering if anyone here knows of or is involved with projects to archive web map tiles (e.g. OpenStreetMap tiles).
If someone wanted to look at the cartographic style history of OpenStreetMap, they would need access to map tiles at specific zoom levels over an area for a specific range or period of time. The database which OSM uses to render these tiles is available and can be searched historically, but I’m more interested in projects that attempt to archive the raster tiles. Specifically how they were packaged, organized, and given metadata.
Thanks in advance for any help!
+Evan
Evan Thornberry
Geographic Information Systems (GIS) Librarian Walter C. Koerner Library | UBC Library The University of British Columbia | Vancouver Campus
1958 Main Mall | Vancouver BC | V6T 1Z2 Canada Phone 604 822 8667 [log in to unmask]<mailto:[log in to unmask]>
UBC Vancouver is located on the traditional, ancestral, unceded territory of the xʷməθkʷəy̓əm (Musqueam) people [cid:image001.png@01D42428.A8255E20]
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End of MAPS-L Digest - 9 Jan 2019 to 10 Jan 2019 (#2019-8)
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