added number of elements to the XML file

src/VariableNetworkNode.cc

@@ -188,6 +188,10 @@ namespace ChimeraTK {
     // add sub-element containing the description
     xmlpp::Element *descriptionElement = variable->add_child("description");
     descriptionElement->set_child_text(pdata->network->getDescription());
+
+    // add sub-element containing the description
+    xmlpp::Element *nElementsElement = variable->add_child("numberOfElements");
+    nElementsElement->set_child_text(std::to_string(pdata->network->getFeedingNode().getNumberOfElements()));
   }
 
   /*********************************************************************************************************************/

xmlschema/application.xsd

@@ -35,6 +35,7 @@
       <xsd:element name="direction" type="DirectionType" minOccurs="1" maxOccurs="1"/>
       <xsd:element name="unit" type="xsd:string" minOccurs="1" maxOccurs="1"/>
       <xsd:element name="description" type="xsd:string" minOccurs="1" maxOccurs="1"/>
+      <xsd:element name="numberOfElements" type="xsd:integer" minOccurs="1" maxOccurs="1"/>
     </xsd:sequence>
     <xsd:attribute name="name" type="xsd:string" use="required"/>
   </xsd:complexType>