CGAL users discussion list

[Olivier Tournaire <>]

Hi,

I a m currently working with the polygon_2 class. I use them to 
delineate regions in image. However, I would like to know if there is a 
way with Aff_Tranformation_2 to do a job like this one :

1. My nodes have integer coordinates.
2. My regions' boundaries are thus delineating the outer bound of the 
regions, i.e. with pixellar coordinates

What I want to obtain is the regions' "true" boundaries, i.e. that each 
vertex of a polygon is between adjacents regions. This way, I will have 
overlaping edges between two neighbor regions. Is it possible with CGAL 
? Maybe a kind of "polygon dilatation" of half a pixel ...

Thanks for your answers.

Olivier