<xs:element name="StartPoint" type="Point2dSimpleType"><xs:annotation><xs:documentation>The StartPoint element is the beginning point of the 2D line segment.</xs:documentation></xs:annotation></xs:element>
<xs:element name="EndPoint" type="Point2dSimpleType"><xs:annotation><xs:documentation>The EndPoint element is the ending point of the 2D line segment.</xs:documentation></xs:annotation></xs:element>
<xs:group name="LineSegment2dGroup"><xs:annotation><xs:documentation>The LineSegmentGroup is a group which contains a start point and an end point that define a portion of a 2D line.</xs:documentation></xs:annotation><xs:sequence><xs:element name="StartPoint" type="Point2dSimpleType"><xs:annotation><xs:documentation>The StartPoint element is the beginning point of the 2D line segment.</xs:documentation></xs:annotation></xs:element><xs:element name="EndPoint" type="Point2dSimpleType"><xs:annotation><xs:documentation>The EndPoint element is the ending point of the 2D line segment.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:group>