[postgis-tickets] [PostGIS] #2093: Add extra policy argument to control ST_Simplify behavior

PostGIS trac at osgeo.org
Wed Dec 12 04:57:23 PST 2012


#2093: Add extra policy argument to control ST_Simplify behavior
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 Reporter:  robe         |       Owner:  pramsey      
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.1.0
Component:  postgis      |     Version:  trunk        
 Keywords:               |  
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Comment(by strk):

 More background on the topic here:
 http://blog.cartodb.com/post/20163722809/speeding-up-tiles-rendering

 The numbers there show that running ST_SimplifyPreserveTopology (simpTP)
 on the data can make the whole operation (process,fetch,render) slower
 than rendering the whole vertices (vanilla), thus defeating the purpose of
 vector reduction.

-- 
Ticket URL: <http://trac.osgeo.org/postgis/ticket/2093#comment:4>
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