[postgis-tickets] [PostGIS] #2227: Visvalingam line generalization function

[PostGIS]

#2227: Visvalingam line generalization function
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 Reporter:  strk         |       Owner:  nicklas      
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.2.0
Component:  postgis      |     Version:  trunk        
 Keywords:               |  
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Comment(by nicklas):

 Added in r13174

 1 question/issue.

 The first and the last point in an array is special. We don't normally
 want them to be eliminated. So now I give them the value DBL_MAX since
 that will prevent any elimination. But that looks very ugly when used with
 ST_Astext. See the doc entry for ST_SetEffectiveArea  for illustration.
 Should we use something like 1e100 instead?

 That should be safe too I guess.

 Another ide is to give the start point and end point some value that
 illustrates how big the whole geometry is. Then the whole geoemtry will be
 removed when that value is under the requested threashold.

 Thoughts?

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2227#comment:5>
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