Re: [Jts-topo-suite-user] Removing a self intersecting feature

[Martin D. <mtn...@te...>]

There are many ways of generating geometry.  Some of them are better 
than others. 8^)  Without knowing how you are generating your 
geometries, it's hard to say how you can avoid creating invalid topology.

One quick way of fixing invalid polygonal topology is to run buffer(0) 
on the invalid polygon.  Be aware however that this can result in very 
incorrect results in a few cases.

Also see this recent thread:

http://sourceforge.net/mailarchive/forum.php?thread_name=B9E886E5DA17AE44BEB8E7B6E1BC63411187F49E88%40sqexc01&forum_name=jts-topo-suite-user


On 4/23/2011 2:02 PM, Dave wrote:
> I have written some code that generates an invalid geometry as described
> by isValidOp
>
> Qgis describeds the problem as a 'self intersecting feature'
>
> Its generated as result of union some polygons together.
>
> Q.  its there any easy way I can avoid this type off problem.
>
> Q. Is the problem can not be avoided, is there way of removing this
> unwanted feature?
>
> regards
>
>
> Dave.
>
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