<xs:element name="ParaCurve">
<xs:annotation>
<xs:documentation>A Point of Vertical Intersection with a space delimited "station elevation" text value and a parabolic vertical curve defined by the "length" attribute.</xs:documentation>
</xs:annotation>
<xs:complexType mixed="true">
<xs:simpleContent>
<xs:extension base="Point2dReq">
<xs:attribute name="length" type="xs:double" use="required" />
<xs:attribute name="desc" type="xs:string" />
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
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