Schema Central > NIEM 2.1 > geometryPrimitives.xsd > gml:Shell
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gml:Shell

A shell is used to represent a single connected component of a solid boundary as specified in ISO 19107:2003, 6.3.8.
Every gml:surfaceMember references or contains one surface, i.e. any element which is substitutable for gml:AbstractSurface. In the context of a shell, the surfaces describe the boundary of the solid. 
If provided, the aggregationType attribute shall have the value "set".

Element information

Type: gml:ShellType

Properties: Global, Qualified

Content

Attributes

NameOccTypeDescriptionNotes
aggregationType [0..1]gml:AggregationTypefrom group gml:AggregationAttributeGroup

Used in

Substitution hierarchy

Sample instance

<gml:Shell>
   <gml:surfaceMember>
      <gml:Polygon gml:id="ID">
         <gml:metaDataProperty>...
         </gml:metaDataProperty>
         <gml:description>string</gml:description>
         <gml:descriptionReference/>
         <gml:identifier codeSpace="http://www.example.com/">string</gml:identifier>
         <gml:name>string</gml:name>
         <gml:exterior>...
         </gml:exterior>
         <gml:interior>...
         </gml:interior>
      </gml:Polygon>
   </gml:surfaceMember>
</gml:Shell>

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