CGAL users discussion list

[Sylvain Pion <>]

Andreas Fabri a écrit :
> samuel kim wrote:
> > Hi all,
> >
> > How can the intentionally modified votex value be pushed back into the 
> > data
> > structure? The below is an example source code I want to do. 
> > for(Point_iterator pPoint = points_begin();pPoint !=
> > points_end();pPoint++)
> > {
> >     double mdx = pPoint->x()*3.0;
> >     double mdy = pPoint->y()*3.0;
> >     double mdz = pPoint->z()*3.0;     
> >     here, how to store the modified vertex(mdx,mdy,mdz) into
> > pPoint->x,y,z?   
> > }
> >
> > Anyone knows this? Thanks.
> >
> > Samuel
>
>
> Samuel,
>
> You can't as points are not modifiable.  You need the vertex_iterator
> and call vi->point() = Point(mdx,mdy,mdz)

You don't need the vertex_iterator...  Points are assignable:

*pPoint = Point(mdx,mdy,mdz).

--
Sylvain Pion
INRIA Sophia-Antipolis
Geometrica Project-Team
CGAL, http://cgal.org/