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[Andreas Fabri <>]

That will update the topology.

best,

andreas


On 17/09/2015 23:38, Mateus Bellomo wrote:
> Thanks for the reply Andreas.
>
> If instead of modifying the vertex coordinates, I remove the vertex and
> its incidents edges and put the vertex back (and it's edges properly
> updated) with new coordinates?
>
> Do you think that would update the topology?
>
> Em qui, 17 de set de 2015 às 16:53, Andreas fabri
> <
> <mailto:>>
>  escreveu:
>
>     It is not a functionality of the arrangement to update the topology
>     when you change the geometry
>
>     Best,
>     Andreas
>
>
>      > On 17 sept. 2015, at 21:46, Mateus Bellomo
>     
> <
>  
> <mailto:>>
>  wrote:
>      >
>      > Hello,
>      >
>      > I'm using Arrangement_2 and trying to modify a vertex point but I
>     think the structure it's not updating information correctly.
>      >
>      > I have a quadrilateral grid and I want to move some vertices in
>     this grid to make a distortion. After I move the vertex I have to
>     check if some of it's edges have crossed another edge. For that I
>     have checked the circular order of edges of it's neighbours. But
>     even when I made a movement that created crossing edges this
>     circular order is not changing as it would.
>      >
>      > Do you know if after using modify_vertex() function the hole
>     Arrangement_2 structure is updated (including circular order of
>     edges in all vertices) accordingly?
>      >
>      > Thanks.
>
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--
Andreas Fabri, PhD
Chief Officer, GeometryFactory
Editor, The CGAL Project

phone: +33.492.954.912    skype: andreas.fabri