[postgis-devel] [PostGIS] #793: Topology: function GetNodeByPoint($1, $2, $3)

[PostGIS]

#793: Topology: function GetNodeByPoint($1,$2,$3)
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 Reporter:  aperi2007    |       Owner:  strk         
     Type:  enhancement  |      Status:  new          
 Priority:  medium       |   Milestone:  PostGIS 2.0.0
Component:  topology     |     Version:  trunk        
 Keywords:               |  
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 Has companion of GetEdgeByPoint I create also
 GetNodeByPoint to detect node before call the GetEdgeByPoint.

 GetNodeByPoint(atopology, point, tolerance)

 Retrieve a Node ID given a POINT and a tolerance
 tollerance = 0 mean exactly intersection

 Returns the integer ID if there is a Node on the Point.

 If there isn't any node in the Point, GetNodeByPoint return 0.

 if near the point there are two or more nodes it throw an exception.

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Ticket URL: <http://trac.osgeo.org/postgis/ticket/793>
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