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<DT>public class <B>LengthBase</B><DT>extends java.lang.Object<DT>implements <A HREF="../../../../org/apache/fop/datatypes/PercentBase.html" title="interface in org.apache.fop.datatypes">PercentBase</A></DL>

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Models a length which can be used as a factor in a percentage length
 calculation
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