mesher.h

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/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice including the dates of first publication and
 * either this permission notice or a reference to
 * http://oss.sgi.com/projects/FreeB/
 * shall be included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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 */
 
/*
 * mesher.h
 *
 */
 
#ifndef __glumesher_h_
#define __glumesher_h_
 
#include "hull.h"
 
class TrimRegion;
class Backend;
class Pool;
// struct GridTrimVertex;
 
 
class Mesher : virtual public TrimRegion, public Hull {
public:
                Mesher( Backend & );
            ~Mesher( void );
    void        init( unsigned int );
    void        mesh( void );
 
private:
    static const float  ZERO;
    Backend&        backend;
 
    Pool        p;
    unsigned int    stacksize;
    GridTrimVertex **   vdata;
    GridTrimVertex *    last[2];
    int         itop;
    int         lastedge;
 
    inline void     openMesh( void );
    inline void     swapMesh( void );
    inline void     closeMesh( void );
    inline int      isCcw( int );
    inline int      isCw( int );
    inline void     clearStack( void );
    inline void     push( GridTrimVertex * );
    inline void     pop( long );
    inline void     move( int, int );
    inline int      equal( int, int );
    inline void     copy( int, int );
    inline void     output( int );
    void        addUpper( void );
    void        addLower( void );
    void        addLast( void );
    void        finishUpper( GridTrimVertex * );
    void        finishLower( GridTrimVertex * );
};
#endif /* __glumesher_h_ */