[xsd-users] retrieving polygon from raeumlicherGeltungsbereich

[Jan Pauwels]

Hello,
 
I want to retreive a polygon from hello9.xml. (Extract from file
follows)

   <gml:featureMember>
    <BP_Plan gml:id="obj_0">
      <xplan:raeumlicherGeltungsbereich>
        <gml:Polygon>
          <gml:exterior>
            <gml:LinearRing>
              <gml:pos>-82.790 -117.603</gml:pos>
              <gml:pos>20.138 -113.254</gml:pos>
              <gml:pos>20.138 85.716</gml:pos>
              <gml:pos>-90.401 85.716</gml:pos>
              <gml:pos>-82.790 -117.603</gml:pos>
            </gml:LinearRing>
          </gml:exterior>
        </gml:Polygon>
      </xplan:raeumlicherGeltungsbereich>
    </BP_Plan>
  </gml:featureMember>

I use the following code :
 
      if (const xplangml::BP_PlanType* bplan = dynamic_cast<const
xplangml::BP_PlanType*> (&i->_Feature()))
      {
         cout << "BP_Plan" << endl;
 
         for
(xplangml::BP_PlanType::raeumlicherGeltungsbereich_const_iterator j
(bplan->raeumlicherGeltungsbereich().begin());
              j != bplan->raeumlicherGeltungsbereich().end();
              ++j)
         {
            ::gml::SurfacePropertyType surf = *j;
            ::gml::AbstractSurfaceType absurf = surf._Surface();
            ::gml::AbstractGMLType ab = absurf;
            if (const gml::PolygonType* p = dynamic_cast<const
gml::PolygonType*> (&absurf))
               cout << "polygon" << endl;
            else
               cout << "no polygon" << endl;
         }
    }

The output is always "no polygon".
 

I attached the XML-files + schemas.



Thank you in advance.

Greetings.

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