[Gvsig_english] R: Re: Problem from polylines to polygons

[Antonio Falciano]

Hi Giovanni,
there are some vertices that need to be snapped on the "rectangle". Just 
a trick: you could extend all internal lines in order to intersect the 
external rectangle and then polygonize them. Sorry for my approximation, 
but it's a topological problem that needs further investigation and I 
haven't enough time to study it now.

Cheers,
Antonio

Il 19/05/2011 9.52, Gio_ca ha scritto:
>
> Hi Antonio,
>
> Further to your request, I zipped and attached the shape file with 
> polylines that I am trying to convert in a shapefile with 8 polygon 
> features.
>
> Thanks,
>
> Giovanni
>
>
>
>     ----Messaggio originale----
>     Da: [hidden email] </user/SendEmail.jtp?type=node&node=6381007&i=0>
>     Data: 18/05/2011 17.53
>     A: "Gio_ca"<[hidden email]
>     </user/SendEmail.jtp?type=node&node=6381007&i=1>>
>     Ogg: Re: Problem from polylines to polygons
>
>     Giovanni,
>     please, can you send us in private your line layer? Thanks.
>
>     Cheers,
>     Antonio
>
>     Il 18/05/2011 17.42, Gio_ca ha scritto:
>
>     > Thanks Jorge.
>     > I can try but as long as I see from the attribute table of your
>     attachment
>     > you just got 5 polygons while they should be 8. Probably you are
>     missing
>     > polygons whose edges are both inner lines and part of the outer
>     boundary.
>     > See my attachment in the earlier messages that I produced with
>     ArcInfo with
>     > a polygon highlighted in dark green. Do you have that polygon
>     also in your
>     > map?
>     >
>     > --
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>     -- 
>     Antonio Falciano
>     http://www.linkedin.com/in/antoniofalciano
>
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> *shape last complete.zip* (2K) Download Attachment 
> </attachment/6381007/0/shape%20last%20complete.zip>
>
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> polygons 
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-- 
Antonio Falciano
http://www.linkedin.com/in/antoniofalciano