/indra/llmath/llbboxlocal.cpp

/** 
 * @file llbboxlocal.cpp
 * @brief General purpose bounding box class (Not axis aligned).
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * 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;
 * version 2.1 of the License only.
 * 
 * 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.
 * 
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "linden_common.h"

#include "llbboxlocal.h"
#include "m4math.h"

void LLBBoxLocal::addPoint(const LLVector3& p)
{
	mMin.mV[VX] = llmin( p.mV[VX], mMin.mV[VX] );
	mMin.mV[VY] = llmin( p.mV[VY], mMin.mV[VY] );
	mMin.mV[VZ] = llmin( p.mV[VZ], mMin.mV[VZ] );
	mMax.mV[VX] = llmax( p.mV[VX], mMax.mV[VX] );
	mMax.mV[VY] = llmax( p.mV[VY], mMax.mV[VY] );
	mMax.mV[VZ] = llmax( p.mV[VZ], mMax.mV[VZ] );
}

void LLBBoxLocal::expand( F32 delta )
{
	mMin.mV[VX] -= delta;
	mMin.mV[VY] -= delta;
	mMin.mV[VZ] -= delta;
	mMax.mV[VX] += delta;
	mMax.mV[VY] += delta;
	mMax.mV[VZ] += delta;
}

LLBBoxLocal operator*(const LLBBoxLocal &a, const LLMatrix4 &b)
{
	return LLBBoxLocal( a.mMin * b, a.mMax * b );
}