[postgis-devel] [PostGIS] #399: ST_CleanGeometry

[PostGIS]

#399: ST_CleanGeometry
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  Reporter:  strk     |       Owner:  strk         
      Type:  task     |      Status:  assigned     
  Priority:  medium   |   Milestone:  PostGIS 2.0.0
 Component:  postgis  |     Version:               
Resolution:           |    Keywords:               
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Comment (by strk):

 Just to add an use case for the CleanGeometry (this one yes wants a
 tolerance).
 I'm working with statistical regions and building their boundaries by
 ST_Union'ing
 the boundaries of the countries those regions are composed by.

 The resulting union is full of very small gaps near the original country
 boundaries.
 I'm cleaning the result by hand (qgis) but would rather run an
 ST_CleanGeometry.
 The tolerance in this case might be a factor of the total area which would
 drop any
 internal ring smaller than that factor. Need to think more about
 consequences though ...

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/399#comment:24>
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