svggeolocationgeotagginggisxml-formatting

Geographical identification location (GeoLocation/GeoTag) in SVG

I am wondering how to geotag SVG maps.

My search results

My questions

  1. Does someone has already GeoTagged an SVG image?
  2. What XML tag to use?
  3. Should I create a specific SVG tag and propose an RFC?
  4. What do you advice?

My specific usage

For information, I am developing on my spare time a website for commons-based maps peer production: Lmap.org. I would like to embed the Geo-Location within the SVG code => The downloaded SVG maps will already contain all the Geo-Location data.

I think SVG GeoTagging could be interesting for maps and building representation, for instance:

Solution

  • The most advanced reference I found is the Dublin Core DCMI-box.

    2000 version

    The 2000's version was something such :

    <Box name="Duchess copper mine">
    <northlimit>-21.3</northlimit>
    <eastlimit>139.9</eastlimit>
    <southlimit>-21.4</southlimit>
    <westlimit>139.8</westlimit>
    <uplimit>400</uplimit>
    <downlimit>-100</downlimit>
</Box>

    osgeo.org cite the DClite4G scheme :

     <dct:spatial>
  <Box projection="EPSG:4326" name="Geographic">
    <northlimit>34.353</northlimit>
    <eastlimit>-96.223</eastlimit>
    <southlimit>28.229</southlimit>
    <westlimit>-108.44</westlimit>
  </Box>
</dct:spatial>

    They also have a list of RDF

    2006 version

    The 2006 Dublin Core DCMI-box values used with their generator (click on DCMI-box) suggest the XML syntax as follow :

    <?xml version="1.0" encoding="UTF-8"?>
<metadata
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:dcterms="http://purl.org/dc/terms/">

<dcterms:spatial xsi:type="dcterms:Box">
  name=france;northlimit=55;
  eastlimit=10;
  southlimit=44;
  westlimit=-5;
  projection=ESPXYZ;
</dcterms:spatial>

</metadata>

    enter image description here

    you can naturally change the units.