TrimRegion Class Reference

#include <trimregion.h>

Inheritance diagram for TrimRegion:

Collaboration diagram for TrimRegion:

Public Member Functions
	TrimRegion ()
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)

Public Attributes
Trimline	left
Trimline	right
Gridline	top
Gridline	bot
Uarray	uarray

Private Attributes
REAL	oneOverDu

Detailed Description

Definition at line 46 of file trimregion.h.

Constructor & Destructor Documentation

TrimRegion()

TrimRegion::TrimRegion

(

void

)

Definition at line 45 of file trimregion.cc.

{
}

Member Function Documentation

advance()

void TrimRegion::advance ( REAL  topVindex, REAL  botVindex, REAL  botVval  )

inline

Definition at line 79 of file trimregion.h.

{
    top.vindex  = (long) topVindex;
    bot.vindex  = (long) botVindex;
    top.vval    = bot.vval;
    bot.vval    = botVval;
    top.ustart  = bot.ustart;
    top.uend    = bot.uend;
}

Referenced by Slicer::slice_old().

canTile()

int TrimRegion::canTile

(

void

)

Definition at line 102 of file trimregion.cc.

{
    TrimVertex *lf = left.first();
    TrimVertex *ll = left.last();
    TrimVertex *l = ( ll->param[0] > lf->param[0] ) ? ll : lf; 
 
    TrimVertex *rf = right.first();
    TrimVertex *rl = right.last();
    TrimVertex *r = ( rl->param[0] < rf->param[0] ) ? rl : rf;
    return (l->param[0] <= r->param[0]) ? 1 : 0;
}

Referenced by Slicer::slice_old().

getGridExtent() [1/2]

void TrimRegion::getGridExtent	(	TrimVertex *	l,
		TrimVertex *	r
	)

Definition at line 86 of file trimregion.cc.

{
    bot.ustart = (long) ((l->param[0] - uarray.uarray[0])*oneOverDu);
    if( l->param[0] >= uarray.uarray[bot.ustart] ) bot.ustart++;
//  if( l->param[0] > uarray.uarray[bot.ustart] ) bot.ustart++;
    assert( l->param[0] <= uarray.uarray[bot.ustart] );
    assert( l->param[0] >= uarray.uarray[bot.ustart-1] );
 
    bot.uend = (long) ((r->param[0] - uarray.uarray[0])*oneOverDu);
    if( uarray.uarray[bot.uend] >= r->param[0] ) bot.uend--;
//  if( uarray.uarray[bot.uend] > r->param[0] ) bot.uend--;
    assert( r->param[0] >= uarray.uarray[bot.uend] );
    assert( r->param[0] <= uarray.uarray[bot.uend+1] );
}

getGridExtent() [2/2]

void TrimRegion::getGridExtent

(

void

)

Definition at line 80 of file trimregion.cc.

{
    getGridExtent( left.last(), right.last() );
}

Referenced by getGridExtent(), and Slicer::slice_old().

getPts() [1/2]

void TrimRegion::getPts

(

Arc_ptr

extrema

)

Definition at line 66 of file trimregion.cc.

{
    left.getNextPts( extrema );
    right.getPrevPts( extrema );
}

Referenced by Slicer::slice_old().

getPts() [2/2]

void TrimRegion::getPts

(

Backend &

backend

)

Definition at line 73 of file trimregion.cc.

{
    left.getNextPts( bot.vval, backend );
    right.getPrevPts( bot.vval, backend );
}

init() [1/2]

void TrimRegion::init	(	long	npts,
		Arc_ptr	extrema
	)

Definition at line 56 of file trimregion.cc.

{
    left.init( npts, extrema, extrema->pwlArc->npts - 1 ); 
    left.getNextPt();
 
    right.init( npts, extrema, 0 ); 
    right.getPrevPt();
}

init() [2/2]

void TrimRegion::init ( REAL  vval )

inline

Definition at line 73 of file trimregion.h.

{
    bot.vval = vval;
}

Referenced by Slicer::slice_old().

setDu()

void TrimRegion::setDu

(

REAL

du

)

Definition at line 50 of file trimregion.cc.

{
    oneOverDu = 1.0/du;
}

Referenced by Slicer::setstriptessellation().

Member Data Documentation

bot

Gridline TrimRegion::bot

Definition at line 56 of file trimregion.h.

Referenced by advance(), CoveAndTiler::coveAndTile(), CoveAndTiler::coveLL(), CoveAndTiler::coveLowerLeft(), CoveAndTiler::coveLowerRight(), CoveAndTiler::coveLR(), CoveAndTiler::coveUL(), CoveAndTiler::coveUpperLeft(), CoveAndTiler::coveUpperRight(), CoveAndTiler::coveUR(), getGridExtent(), getPts(), init(), and Hull::init().

left

Trimline TrimRegion::left

Definition at line 53 of file trimregion.h.

Referenced by Hull::init().

oneOverDu

REAL TrimRegion::oneOverDu

private

Definition at line 69 of file trimregion.h.

Referenced by getGridExtent(), and setDu().

right

Trimline TrimRegion::right

Definition at line 54 of file trimregion.h.

Referenced by Hull::init().

top

Gridline TrimRegion::top

Definition at line 55 of file trimregion.h.

Referenced by Hull::init().

uarray

Uarray TrimRegion::uarray

Definition at line 57 of file trimregion.h.

Referenced by CoveAndTiler::coveAndTile(), CoveAndTiler::coveLL(), CoveAndTiler::coveLR(), CoveAndTiler::coveUL(), CoveAndTiler::coveUR(), getGridExtent(), Hull::nextlower(), Hull::nextupper(), and Slicer::slice_old().

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The documentation for this class was generated from the following files:

• dll/opengl/glu32/src/libnurbs/internals/trimregion.h
• dll/opengl/glu32/src/libnurbs/internals/trimregion.cc