make valid polygons

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make valid polygons

"R. Müller"
Hi group,

i have some multipolgons which are not "valid" since there are some
selfintersection between the polygons. what is fastest to make this
geoms valid ?
i think i have make a union between all subpolygons or something like
that. but for that i have to implement a postgres-function  :-(.
any other idea ?

thank you

ronald

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Re: make valid polygons

Nicolas Ribot
> Hi group,
>
> i have some multipolgons which are not "valid" since there are some
> selfintersection between the polygons. what is fastest to make this
> geoms valid ?
> i think i have make a union between all subpolygons or something like
> that. but for that i have to implement a postgres-function  :-(.
> any other idea ?
>
 
If the number of polygons is reasonable, you can edit them with Jump.
>From the Tools menu, choose QA / Validate Selected Layers.
All invalid polygons will be marked and you will be able to correct
them manually.

Nicolas
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