<element name="polyline" required="0">
  <description>Defines an extruded polyline shape</description>

  <element name="point" type="vector2d" default="0 0" required="+">
    <description>
      A series of points that define the path of the polyline.
    </description>
  </element>

  <element name="height" type="double" default="1.0" required="1">
    <description>Height of the polyline</description>
  </element>

</element>
