foss4g 2013 nottingham

1. Old Maps Online
and
Georeferencer
Václav Klusák (vaclav.klusak@klokantech.com)

2. www.oldmapsonline.org

4. • Time and scale filters
• Full-text filter
• Ordered by similarity to query bounds
• Immediate feedback

5. • Data come from libraries and archives
• Approx. 130 000 maps now
• We link back to the original sites

7. www.mapranksearch.com

8. • Collection of records with their attributes
• Records must have geometries (WKT)
• Dublin Core inspired metadata
• Custom attributes
• Query by bounding box

9. • Optimized for fast frequent searches and
infrequent batched updates
• Read-only
• Machine-dependent file format
• WAH compressed bitmap indices
• Response time independent from query
bounds

10. • FastCGI application
• OpenSearch queries
• JSON results
• UI based on Google Closure Javascript
Toolkit
• Google Maps, OpenLayers 3 or Leaflet

11. Georeferencer
www.georeferencer.com

12. • Geared towards libraries and archives
• Enables them to georeference large
collections of digitized maps by
crowdsourcing the effort
• Rewards users with attractive vizualizations
• Development sponsored by Moravian
Library

14. • Users add GCPs and cutlines to maps
• Revision history is stored
• Quality control by reviewers

17. • Google Maps, WMS and WMTS overlays
• 3D view with Google Earth
• Accuracy analysis with MapAnalyst
• MARC 034
• gdal_georeferencer.py
• Linked data annotations in development

19. http://www.georeferencer.com/

20. • Image servers as data sources
• ContentDM, IIP Image, Zoomify, ...
• Only thumbnails are stored
• Same metadata as in MapRank

21. Klokan Technologies GmbH
info@klokantech.com