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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.
*/
/*
* trimregion.h
*
*/
#ifndef __glutrimregion_h_
#define __glutrimregion_h_
#include "trimline.h"
#include "gridline.h"
#include "uarray.h"
class Arc;
class Backend;
class TrimRegion {
public:
TrimRegion();
Trimline left;
Trimline right;
Gridline top;
Gridline bot;
Uarray uarray;
void init( REAL );
void advance( REAL, REAL, REAL );
void setDu( REAL );
void init( long, Arc_ptr );
void getPts( Arc_ptr );
void getPts( Backend & );
void getGridExtent( TrimVertex *, TrimVertex * );
void getGridExtent( void );
int canTile( void );
private:
REAL oneOverDu;
};
inline void
TrimRegion::init( REAL vval )
{
bot.vval = vval;
}
inline void
TrimRegion::advance( REAL topVindex, REAL botVindex, REAL botVval )
{
top.vindex = (long) topVindex;
bot.vindex = (long) botVindex;
top.vval = bot.vval;
bot.vval = botVval;
top.ustart = bot.ustart;
top.uend = bot.uend;
}
#endif /* __glutrimregion_h_ */
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