[QGIS-trac] [Quantum GIS] #3851: Allow tolerating self-touching rings forming holes as valid

[Quantum GIS]

#3851: Allow tolerating self-touching rings forming holes as valid
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   Reporter:  strk                              |              Owner:  cfarmer      
       Type:  enhancement                       |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.7.0
  Component:  fTools                            |            Version:  Trunk        
   Keywords:                                    |   Platform_version:               
   Platform:  Debian                            |           Must_fix:  No           
Status_info:  0                                 |  
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 Self-touching rings forming holes are invalid as per OGC specifications
 but are valid for some other common GIS softwares.

 GEOS recently introduced a flag to specify whether or not to consider them
 an invalidity, would be nice to have the same possibility with ftools.

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Ticket URL: <http://trac.osgeo.org/qgis/ticket/3851>
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