The Distance element is the distance over which the slope applies. The TargetValue element in the LinearCharacteristicNominalBaseType is the difference in heights over this distance.
<xs:element name="Distance" type="LinearValueType"><xs:annotation><xs:documentation>The Distance element is the distance over which the slope applies. The TargetValue element in the LinearCharacteristicNominalBaseType is the difference in heights over this distance.</xs:documentation></xs:annotation></xs:element>
The FlatTaperCharacteristicNominalType defines a unique flat taper characteristic nominal with a slope expressed as a difference in heights over a distance.
The id attribute is the QIF id of the characteristic, used for referencing.
Source
<xs:complexType name="FlatTaperCharacteristicNominalType"><xs:annotation><xs:documentation>The FlatTaperCharacteristicNominalType defines a unique flat taper characteristic nominal with a slope expressed as a difference in heights over a distance.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="LinearCharacteristicNominalBaseType"><xs:sequence><xs:element name="Distance" type="LinearValueType"><xs:annotation><xs:documentation>The Distance element is the distance over which the slope applies. The TargetValue element in the LinearCharacteristicNominalBaseType is the difference in heights over this distance.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:extension></xs:complexContent></xs:complexType>