Syntax

   FACTORY_DEF <ReaderKeyword> SherbendFactory
   [FACTORY_NAME <factory name>] 
   [INPUT (LINES|POINTS) FEATURE_TYPE <feature type>
      [<attribute name> <attribute value>]*
      [<feature function>]*]*
   [GROUP_BY [<attribute name>]+]*
   [FLUSH_WHEN_GROUPS_CHANGE (Yes|No)]
   [DIAMETER <value>]
   [MAX_ITERATIONS <value>]
   [CONSTRAINTS (SELF_INTERSECTION_ENABLED | LINE_LINE_INTERSECTION_ENABLED | 
      SIDEDNESS_ENABLED)+]
   [ONE_BEND_PER_ITERATION [(YES|NO)]]
   [ROTATE_CLOSED_LINES [(YES|NO)]]
   [MODE (QUICK|COMPLETE)]
   [OUTPUT (LINES|CONFLICTS|INVALID) FEATURE_TYPE <feature type>
      [<attribute name> <attribute value>]*
      [<feature function>]*]*

Overview

   To be documented.

Input Tags

   The SherbendFactory supports the following input tags.

   LINES

      Input lines will be simplified. They are assumed to not self-intersect or 
      intersect with another line or point.

   POINTS

      Input points will prevent bend simplification if a simplified bend 
      violates the partial sidedness constraint.
   
Clauses

   The SherbendFactory supports the following clauses.

   GROUP_BY

      Only lines and points in the same group are subject to constraint 
      checking. If no group is specified, all lines and points are placed in the 
      same group.

   FLUSH_WHEN_GROUPS_CHANGE

      If the GROUP_BY clause is specified, this clause (when set to Yes) will cause
      the factory to process and output the current group immediately when an
      attribute that does not belong to the current group is encountered.

   DIAMETER

      This parameter roughly describes the width of a bend below which the bend 
      will be simplified. Different lines can have different diameters specified 
      as an attribute. The bigger the diameter, the more likely bends will be 
      simplified.

   CONSTRAINTS

      Topological constraints selected.

   ROTATE_CLOSED_LINES

      This parameter, if enabled, will re-order (rotate) the coordinate list of 
      each closed line in an attempt to improve the aesthetics of the simplified 
      lines.
   
   MAX_ITERATIONS
   
      To be documented.
      
   ONE_BEND_PER_ITERATION
   
      To be documented.
      
Output Tags

   The SherbendFactory supports the following output tags.

   LINES

      Simplified lines.

   CONFLICTS

      Bends that can not be reduced due to various constraints.

   INVALID

      Input features with invalid geometry.

TO BE RESOLVED

   Overview section, MAX_ITERATIONS and ONE_BEND_PER_ITERATION clauses need to 
   be documented.