[postgis-tickets] [PostGIS] #3048: Use Squared Distance instead of Distance in Simplify

PostGIS trac at osgeo.org
Fri Feb 20 06:46:01 PST 2015


#3048: Use Squared Distance instead of Distance in Simplify
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 Reporter:  pramsey  |       Owner:  pramsey      
     Type:  defect   |      Status:  new          
 Priority:  high     |   Milestone:  PostGIS 2.1.6
Component:  postgis  |     Version:  2.1.x        
 Keywords:           |  
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 By avoiding sqrt() and using getPoint_cp, speed up the simplification
 routines, particularly on large polygons. Patch from J. Santana.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/3048>
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