[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:  blocker      |   Milestone:  PostGIS 2.2.0
Component:  postgis      |     Version:  trunk        
 Keywords:               |  
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Comment(by nicklas):

 First step against a better world with Visvalingam simplify in r13398

 Adds a Heap tree to speed up handling of larger geometries.

 Also adds functionality for avoiding collapsing polygons. Keeps the 4 most
 significant vertex points (first last and two more). The smallest result
 is a triangle since first and last point is the same.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/2227#comment:22>
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