Changes between Version 62 and Version 63 of UserGuidelines/GIS/Data


Ignore:
Timestamp:
09/05/10 00:14:44 (11 years ago)
Author:
Fran Boon
Comment:

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  • UserGuidelines/GIS/Data

    v62 v63  
    66
    77=== UUIDs ===
    8 We need an agreed set of [http://eden.sahanafoundation.org/wiki/UUID UUID]s for GIS Data so that we can share data more easily across systems.
    9  * !OpenStreetMap IDs can change over time if records are deleted/recreated
    10   * They can [http://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Tags/Humanitarian_Data_Model#ID hold additional uid/uuid fields] though
    11  * Geonames data isn't free enough for OSM: http://wiki.openstreetmap.org/wiki/Geonames
    12   * Geonet can be: http://wiki.openstreetmap.org/wiki/GEOnet_Names_Server
    13  * Yahoo WoE data is in the public domain:
    14   * XML: http://code.flickr.com/blog/2009/05/21/flickr-shapefiles-public-dataset-10/
    15   * Tab: http://developer.yahoo.com/geo/geoplanet/data/
    16  * Ushahidi doesn't have a common set of IDs across instances
    17   * No space for a UUID either?
    18  * Longer-term we need a common central repository of UUIDs that is held for the common good.
    19   * Propose that Sahana start this off & then give up ownership/branding later:
    20   * Sahana can use UUIDs of format: http://geo.sahanafoundation.org/<ID>
    21   * These are associated with an OSM ID & Geonames ID for cross-correlation
    22   * The Source ID field shows the source, so that OSM export can filter out sources like Geonames
    23   * IDs from Ushahidi instances can be appended to the comments field in Sahana
    24 
     8See: wiki:UUID#Mapping
    259=== Geonames ===
    2610There is an import_geonames() function in S3GIS which downloads/unzips the country file (a TAB-separated list) from http://download.geonames.org/export/dump/