[postgis-devel] [PostGIS] #1059: Regress failure after gserialized: ST_ASGML/ST_GeomFromGML POINT empty invalid GML

[PostGIS]

#1059: Regress failure after gserialized: ST_ASGML/ST_GeomFromGML POINT empty
invalid GML
---------------------+------------------------------------------------------
 Reporter:  robe     |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  medium   |   Milestone:  PostGIS 2.0.0
Component:  postgis  |     Version:  trunk        
 Keywords:  gml      |  
---------------------+------------------------------------------------------

Comment(by rouault):

 <gml:Point/> is invalid GML 2. See :

 pointempty.xsd :

 {{{
 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema targetNamespace="http://ogr.maptools.org/"
 xmlns:ogr="http://ogr.maptools.org/"
 xmlns:xs="http://www.w3.org/2001/XMLSchema"
 xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified"
 version="1.0">
 <xs:import namespace="http://www.opengis.net/gml"
 schemaLocation="http://schemas.opengis.net/gml/2.1.2/feature.xsd"/>
 <xs:element name="FeatureCollection" type="ogr:FeatureCollectionType"
 substitutionGroup="gml:_FeatureCollection"/>
 <xs:complexType name="FeatureCollectionType">
   <xs:complexContent>
     <xs:extension base="gml:AbstractFeatureCollectionType">
       <xs:attribute name="lockId" type="xs:string" use="optional"/>
       <xs:attribute name="scope" type="xs:string" use="optional"/>
     </xs:extension>
   </xs:complexContent>
 </xs:complexType>
 <xs:element name="pointempty" type="ogr:pointempty_Type"
 substitutionGroup="gml:_Feature"/>
 <xs:complexType name="pointempty_Type">
   <xs:complexContent>
     <xs:extension base="gml:AbstractFeatureType">
       <xs:sequence>
         <xs:element name="geometryProperty"
 type="gml:GeometryPropertyType" nillable="true" minOccurs="0"
 maxOccurs="1"/>
         <xs:element name="foo" nillable="true" minOccurs="0"
 maxOccurs="1">
           <xs:simpleType>
             <xs:restriction base="xs:string">
             </xs:restriction>
           </xs:simpleType>
         </xs:element>
       </xs:sequence>
     </xs:extension>
   </xs:complexContent>
 </xs:complexType>
 </xs:schema>
 }}}

 pointempty.gml (hand edited since OGR doesn't allow to write <gml:Point/>
 :


 {{{
 <?xml version="1.0" encoding="utf-8" ?>
 <ogr:FeatureCollection
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://ogr.maptools.org/ pointempty.xsd"
      xmlns:ogr="http://ogr.maptools.org/"
      xmlns:gml="http://www.opengis.net/gml">
   <gml:boundedBy>
     <gml:null>missing</gml:null>
   </gml:boundedBy>
   <gml:featureMember>
     <ogr:pointempty fid="pointempty.0">
       <ogr:geometryProperty><gml:Point /></ogr:geometryProperty>
       <ogr:foo>bar</ogr:foo>
     </ogr:pointempty>
   </gml:featureMember>
 </ogr:FeatureCollection>
 }}}

 Now, let's validate the file :

 {{{
 $ LD_LIBRARY_PATH=/home/even/install-libxml2-2.7.8git/lib xmllint --schema
 pointempty.xsd pointempty.gml  -noout
 pointempty.gml:12: element Point: Schemas validity error : Element
 '{http://www.opengis.net/gml}Point': Missing child element(s). Expected is
 one of ( {http://www.opengis.net/gml}coord,
 {http://www.opengis.net/gml}coordinates ).
 pointempty.gml fails to validate
 }}}

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1059#comment:4>
PostGIS <http://trac.osgeo.org/postgis/>
The PostGIS Trac is used for bug, enhancement & task tracking, a user and developer wiki, and a view into the subversion code repository of PostGIS project.