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/**

 * @file subdivision.h

 * @brief Functions for mesh subdivision. Catmull Clark to be precise.

 */

/* ----------------------------------------------------------------------- *

 * This file is part of GEL, http://www.imm.dtu.dk/GEL

 * Copyright (C) the authors and DTU Informatics

 * For license and list of authors, see ../../doc/intro.pdf

 * ----------------------------------------------------------------------- */

#ifndef __HMESH_SUBDIVIDE_H__

#define __HMESH_SUBDIVIDE_H__

namespace HMesh

{

    class Manifold;

    /** Perform a Catmull-Clark split, i.e. a split where each face is divided

    into new quadrilateral faces formed by connecting a corner with a

    point on each incident edge and a point at the centre of the face. */

    void cc_split(Manifold&, Manifold&);

    void loop_split(Manifold& m_in, Manifold& m);

    void root3_subdivide(Manifold&, Manifold&);

    void butterfly_subdivide(Manifold& m_in, Manifold& m);

    void cc_smooth(Manifold&);

    void loop_smooth(Manifold&);

}

#endif