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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,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* SILICON GRAPHICS, INC. BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
/*
* slicer.h
*
* $Date: 2001/03/17 00:25:41 $ $Revision: 1.1 $
* $Header: /home/krh/git/sync/mesa-cvs-repo/Mesa/src/glu/sgi/libnurbs/internals/slicer.h,v 1.1 2001/03/17 00:25:41 brianp Exp $
*/
#ifndef __gluslicer_h_
#define __gluslicer_h_
#include "trimregion.h"
#include "mesher.h"
#include "coveandtiler.h"
#include "primitiveStream.h"
#include "rectBlock.h"
class Backend;
class Arc;
class TrimVertex;
class Slicer : public CoveAndTiler, public Mesher {
public:
Slicer( Backend & );
~Slicer( void );
void slice( Arc_ptr );
void slice_old( Arc_ptr);
void slice_new( Arc_ptr );
void evalStream(primStream* );
void evalRBArray(rectBlockArray* rbArray, gridWrap* grid);
void outline( Arc_ptr );
void setstriptessellation( REAL, REAL );
void setisolines( int );
void set_ulinear(int ulinear_flag)
{
ulinear = ulinear_flag;
}
void set_vlinear(int vlinear_flag)
{
vlinear = vlinear_flag;
}
private:
Backend& backend;
REAL oneOverDu;
REAL du, dv;
int isolines;
void outline( void );
void initGridlines( void );
void advanceGridlines( long );
int ulinear; //indicate whether uorder is 2 or not
int vlinear; //indicate whether vorder is 2 or not
};
#endif /* __gluslicer_h_ */
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