[Qgis-user] Problem with clip-tool

Carson Farmer carson.farmer at gmail.com
Wed Feb 4 07:35:59 PST 2009


Hi Corinne,
> If I select a polygon-layer as input- and another polygon-layer as clip-layer the output is neither correct nor complete.
>  
> In the result of the clip process, some (obviously with the clip- layer intersecting) polygons of the input- layer are left out. 
> Repeating the process with the same input- but a different clip- layer (which has intersecting areas with the clip- layer I tried first), the mistakes in the output change. There are left out the same or/and several other polygons. 
>
> I`ve tried several combinations of input- and clip- layers. Every effort produced some mistakes. 
>
>
> Does anybody know this problem? and knows how to fix it? 
>   
This is a known issue when working with some polygons. Please download 
the latest version of fTools (0.5.5), where most (it not all) of these 
associated issues have been fixed. If you are still having troubles with 
the clip function, please let me know and I'll take another look at it.

Cheers,

Carson

-- 
Carson J. Q. Farmer
ISSP Doctoral Fellow
National Centre for Geocomputation (NCG),
Email: Carson.Farmer at gmail.com
Web:   http://www.carsonfarmer.com/
       http://www.ftools.ca/





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