> -----Original Message----- > From: discuss-boun...@lists.osgeo.org > [mailto:discuss-boun...@lists.osgeo.org] On Behalf Of "René > A. Enguehard" > Sent: Wednesday, 10 June 2009 13:59 > To: discuss@lists.osgeo.org > Subject: [OSGeo-Discuss] XML to GML XSLT > > Hi all, > > I've been working on getting an XML document to transform > into a GML document. Currently I'm running into two issues: > > 1. How do we define the XSD rules for a string node with an > attribute? > ie: <point dimension="2">12.12, 34.34</point> > Currently all I have found relates to simple text nodes > or simple attribute nodes, but not mixed ones. >
You could declare something like: <xs:element name="foo" type="fooType"> <xs:complexType name="fooType"> <xs:simpleContent> <xs:extension base="xs:string"> <xs:attribute name="age"/> </xs:extension> </xs:simpleContent> </xs:complexType> ..which would look like this when instantiated: <foo age="123">bar</foo> > 2. How do we get XSD to "play nice" with the gml: prefix? I > want to use gml:Point and gml:pos but the XSD file doesn't validate. > > Some sample XML: > > <?xml version="1.0" encoding="UTF-8"?> > <user xmlns:gml="http://www.opengis.net/gml";> > <name>test</name> > <gml:Point> > <gml:pos dimension="2">-97.7452090, 30.2687350</gml:pos> > </gml:Point> > </user> > > The XSD file for the code (so far): > > <?xml version="1.0" encoding="utf-8"?> > <xsd:schema > xmlns:xsd="http://www.w3.org/2001/XMLSchema"; > xmlns:gml="http://www.opengis.net/gml";> > <xsd:import namespace="http://www.opengis.net/gml"/> > <xsd:element name="user" type="userType" /> > > <xsd:complexType name="userType"> > <xsd:sequence> > <xsd:element name="name" type="xsd:string" /> > <xsd:element name="gml:Point" type="gml:Point" /> > <---- ??? > </xsd:sequence> > </xsd:complexType> > What version of GML are you designing against? Have you considered doing your .xsd as a GML application schema, where you would extend as follows: <xs:element name="Meeting" substitutionGroup="gml:_Feature"> <xs:complexType> <xs:complexContent> <xs:extension base="gml:AbstractFeatureType"> <xs:sequence> <xs:element name="year" type="xs:integer"/> <xs:element name="venue" type="xs:string"/> <xs:element name="website" type="xs:anyURI"/> </xs:sequence> </xs:extension> </xs:complexContent> </xs:complexType> </xs:element> By extending gml:AbstractFeatureType, you inherit gml:location (among other things), from which you can express various geometry types. So the above would then instantiate as: <Meeting> <gml:description>This was where the first meeting was held</gml:description> <gml:name>St. Paul</gml:name> <gml:location> <gml:Point srsName="http://www.opengis.net/gml/srs/epsg.xml#4326";> <gml:coord> <gml:pos-93.093055556 44.944444444</gml:pos> </gml:coord> </gml:Point> </gml:location> <year>2003</year> <venue>University of Minnesota, St. Paul Campus</venue> <website>http://www.mapserver.org</website> </Meeting> You might want to consult the OGC Public Forum (http://feature.opengeospatial.org/forumbb/) as well. ..Tom _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
