<complexType name="KnotType">
    <annotation>
        <documentation>A knot is a breakpoint on a piecewise spline curve.</documentation>
    </annotation>
    <sequence>
        <element name="value" type="double">
            <annotation>
                <documentation>The property "value" is the value of the parameter at the knot of the spline. The sequence of knots shall be a non-decreasing sequence. That is, each knot's value in the sequence shall be equal to or greater than the previous knot's value. The use of equal consecutive knots is normally handled using the multiplicity.</documentation>
            </annotation>
        </element>
        <element name="multiplicity" type="nonNegativeInteger">
            <annotation>
                <documentation>The property "multiplicity" is the multiplicity of this knot used in the definition of the spline (with the same weight).</documentation>
            </annotation>
        </element>
        <element name="weight" type="double">
            <annotation>
                <documentation>The property "weight" is the value of the averaging weight used for this knot of the spline.</documentation>
            </annotation>
        </element>
    </sequence>
</complexType>

• KnotType
• gml:Knot