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/**
* @file v3dmath.cpp
* @brief LLVector3d class implementation.
*
* $LicenseInfo:firstyear=2000&license=viewergpl$
*
* Copyright (c) 2000-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "linden_common.h"
//#include <sstream> // gcc 2.95.2 doesn't support sstream
#include "v3dmath.h"
//#include "vmath.h"
#include "v4math.h"
#include "m4math.h"
#include "m3math.h"
#include "llquaternion.h"
#include "llquantize.h"
// LLVector3d
// WARNING: Don't use these for global const definitions!
// For example:
// const LLQuaternion(0.5f * F_PI, LLVector3d::zero);
// at the top of a *.cpp file might not give you what you think.
const LLVector3d LLVector3d::zero(0,0,0);
const LLVector3d LLVector3d::x_axis(1, 0, 0);
const LLVector3d LLVector3d::y_axis(0, 1, 0);
const LLVector3d LLVector3d::z_axis(0, 0, 1);
const LLVector3d LLVector3d::x_axis_neg(-1, 0, 0);
const LLVector3d LLVector3d::y_axis_neg(0, -1, 0);
const LLVector3d LLVector3d::z_axis_neg(0, 0, -1);
// Clamps each values to range (min,max).
// Returns TRUE if data changed.
BOOL LLVector3d::clamp(F64 min, F64 max)
{
BOOL ret = FALSE;
if (mdV[0] < min) { mdV[0] = min; ret = TRUE; }
if (mdV[1] < min) { mdV[1] = min; ret = TRUE; }
if (mdV[2] < min) { mdV[2] = min; ret = TRUE; }
if (mdV[0] > max) { mdV[0] = max; ret = TRUE; }
if (mdV[1] > max) { mdV[1] = max; ret = TRUE; }
if (mdV[2] > max) { mdV[2] = max; ret = TRUE; }
return ret;
}
// Sets all values to absolute value of their original values
// Returns TRUE if data changed
BOOL LLVector3d::abs()
{
BOOL ret = FALSE;
if (mdV[0] < 0.0) { mdV[0] = -mdV[0]; ret = TRUE; }
if (mdV[1] < 0.0) { mdV[1] = -mdV[1]; ret = TRUE; }
if (mdV[2] < 0.0) { mdV[2] = -mdV[2]; ret = TRUE; }
return ret;
}
std::ostream& operator<<(std::ostream& s, const LLVector3d &a)
{
s << "{ " << a.mdV[VX] << ", " << a.mdV[VY] << ", " << a.mdV[VZ] << " }";
return s;
}
const LLVector3d& LLVector3d::operator=(const LLVector4 &a)
{
mdV[0] = a.mV[0];
mdV[1] = a.mV[1];
mdV[2] = a.mV[2];
return *this;
}
const LLVector3d& LLVector3d::rotVec(const LLMatrix3 &mat)
{
*this = *this * mat;
return *this;
}
const LLVector3d& LLVector3d::rotVec(const LLQuaternion &q)
{
*this = *this * q;
return *this;
}
const LLVector3d& LLVector3d::rotVec(F64 angle, const LLVector3d &vec)
{
if ( !vec.isExactlyZero() && angle )
{
*this = *this * LLMatrix3((F32)angle, vec);
}
return *this;
}
const LLVector3d& LLVector3d::rotVec(F64 angle, F64 x, F64 y, F64 z)
{
LLVector3d vec(x, y, z);
if ( !vec.isExactlyZero() && angle )
{
*this = *this * LLMatrix3((F32)angle, vec);
}
return *this;
}
BOOL LLVector3d::parseVector3d(const std::string& buf, LLVector3d* value)
{
if( buf.empty() || value == NULL)
{
return FALSE;
}
LLVector3d v;
S32 count = sscanf( buf.c_str(), "%lf %lf %lf", v.mdV + 0, v.mdV + 1, v.mdV + 2 );
if( 3 == count )
{
value->setVec( v );
return TRUE;
}
return FALSE;
}
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