/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */

#ifndef __glucurve_h_
#define __glucurve_h_

#include "../SoAddPrefix.h"

/*
 * curve.h - $Revision: 1.1.1.1 $
 */

#include "types.h"
#include "defines.h"

class Mapdesc;
class Quilt;


class Curve {
public:
friend class Curvelist;
    			Curve( Quilt *, REAL, REAL, Curve * );
    			Curve( Curve&, REAL, Curve * );
    Curve *		next;
private:
    Mapdesc *		mapdesc;
    int			stride;
    int		        order;
    int			cullval;
    int			needsSampling;
    REAL		cpts[MAXORDER*MAXCOORDS];
    REAL		spts[MAXORDER*MAXCOORDS];
    REAL		stepsize;
    REAL		minstepsize;
    REAL		range[3];

    void		clamp( void );
    void		setstepsize( REAL );
    void		getstepsize( void );
    int			cullCheck( void );
    int			needsSamplingSubdivision( void );
};
#endif /* __glucurve_h_ */
