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[Zohar <>]

I attached a mesh, and an image of the before and after the final edge contraction, v1 in purple, vL in black, and a black arrow on a face fh denotes fh->halfedge(). Consider the halfedge() of facet v1,vR,vy0).
I can provide the series of collapses, but to create a minimal example it would require time.

On Monday, March 10, 2014 9:15 AM, Zohar [via cgal-discuss] <[hidden email]> wrote:

In HalfedgeDS_decorator.h:

Halfedge_handle join_vertex( Halfedge_handle h) {
...
        if ( ! hprev->is_border())
            set_face_halfedge(  hprev);
        if ( ! gprev->is_border())
            set_face_halfedge(  gprev);
}

The face halfedge is set arbitrarily to hprev and gprev regardless of what it was.

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dented_plane5.obj (8K) Download Attachment
new_integer_cones.jpg (156K) Download Attachment

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