[Qgis-user] Re: Editing polygons

[Kai-Christian Bruhn]

Hi Jorge,

your solution is surely much more appropriate. Thanks for the links to 
the vid-tutorials!

Kai

Am 28.06.2011 22:16, schrieb jorgepsantos2002:
> Hi Laura,
>
> You must use the *Reshape Feature tool* to edit these features under
> topologic rules. Press the right button of mouse to finalize the scretch.
>
> See the video:
>
> http://www.youtube.com/watch?v=XgL2OTpBNaY
> http://www.youtube.com/watch?v=XgL2OTpBNaY
>
> Best wishes,
>
> _________________
> Jorge Santos
> Téc. em Geodésia e Cartografia
> http://processamentodigital.blogspot.com/
> http://twitter.com/jpsantos2002
> Skype: jorgepsantos2002
>
>
> Laura Guillot wrote:
>>
>> I'm trying to reshape polygons of a lancover map, in order to make them to
>> be more
>> coincident with an overlaid raster image (orthophoto 1:5M).
>> If I just move the nodes to the correct position, I create a correct line
>> but leave a hole behind: the other
>> polygon keeps its line where it was. See a pict here:
>>
>>   http://osgeo-org.1803224.n2.nabble.com/file/n6526418/boundaryproblem.jpeg
>>
>>   Is there any way I could just move the lines as boundaries?
>>
>> I've tried by converting poygons to lines first, but the problem is very
>> much the same: it seems like
>> there is always a double line, one for each adjacent polygon.
>>
>> A possible solution would be having the lines automatically cut into
>> segments, each going from one vertex to another.
>> And having just one segment for each boundary. Is that possible? Is there
>> a
>> process to cut into segments after running polygons to lines?
>>
>> Or perhaps there is a cmpletely different way to accomplish the same goal:
>> modifying the boundaries between polygons.
>>
>> Thanks!
>>
>> L
>>
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>
>
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