<para>This would be useful for example for redistricting data where you require the newly formed polygons to follow the center lines of streets and for the resulting polygons not to overlap.</para>
- <note><para>This function relies on Tiger data as well as the installation of the PostGIS topology module. For more information, refer to <xref linkend="Topology" /> and <xfref linkend="installation_configuration" />. If you have not loaded data covering the region of interest, then no topology records will be created. This function will also fail if you have not created a topology using the topology functions.</para></note>
+ <note><para>This function relies on Tiger data as well as the installation of the PostGIS topology module. For more information, refer to <xref linkend="Topology" /> and <xref linkend="installation_configuration" />. If you have not loaded data covering the region of interest, then no topology records will be created. This function will also fail if you have not created a topology using the topology functions.</para></note>
<note><para>Most topology validation errors are a result of tolerance issues where after transformation the edges points don't quite line up or overlap.
To remedy the situation you may want to increase or lower the precision if you get topology validation failures.</para></note>
</refsection>
<refsection>
<title>See Also</title>
- <para><xref linkend="CreateTopology" />, <xref linkend="TopologySummary" />, <xref linkend="ValidateTopology" /></para>
+ <para><xref linkend="CreateTopology" />, <xref linkend="CreateTopoGeom" />, <xref linkend="TopologySummary" />, <xref linkend="ValidateTopology" /></para>
</refsection>
</refentry>
</sect1>