= Blueprint for GIS Import/Export =

We need to be able to Import & Export these XML formats to/from the Database:
 * GeoRSS (URL fetch/publish)
 * GPX (File upload/download)
 * KML (File upload/download & URL fetch/publish)
 * OSM (File upload/download)
 * GML (? Low priority, not used much in real world)

Other formats which may be useful are Shapefiles, PostGIS & JSON.

These should be representations added to the [wiki:BluePrintREST RESTlike controller].

Rather than reinventing the wheel, we could consider wrapping [http://featureserver.org FeatureServer] to do a lot of this work for us (like Web2Py uses !CherryPy) since it is WSGI-based.[[BR]] 
Alternatively we could look to borrow code from it.

The XML conversion is probably best-done using an XSD parser:
 * [http://georss.org GeoRSS]
  * http://georss.org/xml/1.1/georss.xsd
  * http://georss.org/xml/1.1/gmlgeorss.xsd
 * GPX
  * http://www.topografix.com/gpx/1/1/gpx.xsd
 * GML
  * http://schemas.opengis.net/gml/3.2.1/
 * KML
  * http://schemas.opengis.net/kml/2.2.0/ogckml22.xsd
 * OSM
  * http://dev.openstreetmap.org/~kleptog/osm-0.5.dtd

Many options available for XML Import/Export, e.g.:
 * PyRXP: http://www.reportlab.org/pyrxp.html
  * Faster & optionally validating (DTD, XSD?), but requires compiling into Python so less portable (unless using pyexpat wrapper)
  * PyRXP_Documentation.pdf
  * XSD->DTD conversion (our schema are in XSD format)
   * http://crism.maden.org/consulting/pub/xsl/xsd2dtd.xsl
   * http://weblogs.asp.net/rchartier/archive/2006/03/21/440782.aspx
   * http://lists.xml.org/archives/xml-dev/200504/msg00757.html
   * http://bytes.com/groups/xml/85935-converting-xsd-into-dtd
 * cElementTree - included in Python 2.5, strict & fast: http://effbot.org/zone/celementtree.htm
 * sgmlop (supported by xmlrpclib): http://effbot.org/zone/sgmlop-index.htm
 * pyexpat (non-validating & slower, but built-in to Python 2)
  * http://docs.python.org/library/pyexpat.html

This is another option for Import (via Python structures):
 * http://www.rexx.com/~dkuhlman/generateDS.html

XML links:
 * http://www.w3schools.com/Schema/schema_intro.asp
 * http://diveintopython.org/xml_processing/index.html
 * http://www.xml.com/pub/a/2002/09/18/py.html
 * http://www.xml.com/pub/a/2003/09/10/py.html

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[wiki:BluePrintGeographicInformationSystems GIS BluePrints]