/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#include <basegfx/matrix/b3dhommatrix.hxx>
#include <basegfx/matrix/hommatrixtemplate.hxx>
#include <basegfx/vector/b3dvector.hxx>
#include <memory>
namespace basegfx
{
typedef ::basegfx::internal::ImplHomMatrixTemplate< 4 >Impl3DHomMatrix_Base;
class Impl3DHomMatrix : public Impl3DHomMatrix_Base
{
};
B3DHomMatrix::B3DHomMatrix() = default ;
B3DHomMatrix::B3DHomMatrix(const B3DHomMatrix&) = default ;
B3DHomMatrix::B3DHomMatrix(B3DHomMatrix&&) = default ;
B3DHomMatrix::~B3DHomMatrix() = default ;
B3DHomMatrix& B3DHomMatrix::operator =(const B3DHomMatrix&) = default ;
B3DHomMatrix& B3DHomMatrix::operator =(B3DHomMatrix&&) = default ;
double B3DHomMatrix::get(sal_uInt16 nRow, sal_uInt16 nColumn) const
{
return mpImpl->get(nRow, nColumn);
}
void B3DHomMatrix::set(sal_uInt16 nRow, sal_uInt16 nColumn, double fValue)
{
mpImpl->set(nRow, nColumn, fValue);
}
bool B3DHomMatrix::isLastLineDefault() const
{
return mpImpl->isLastLineDefault();
}
bool B3DHomMatrix::isIdentity() const
{
return mpImpl->isIdentity();
}
void B3DHomMatrix::identity()
{
*mpImpl = Impl3DHomMatrix();
}
void B3DHomMatrix::invert()
{
Impl3DHomMatrix aWork(*mpImpl);
std::unique_ptr<sal_uInt16[]> pIndex( new sal_uInt16[Impl3DHomMatrix_Base::getEdgeLength()] );
sal_Int16 nParity;
if (aWork.ludcmp(pIndex.get(), nParity))
{
mpImpl->doInvert(aWork, pIndex.get());
}
}
double B3DHomMatrix::determinant() const
{
return mpImpl->doDeterminant();
}
B3DHomMatrix& B3DHomMatrix::operator +=(const B3DHomMatrix& rMat)
{
mpImpl->doAddMatrix(*rMat.mpImpl);
return *this ;
}
B3DHomMatrix& B3DHomMatrix::operator -=(const B3DHomMatrix& rMat)
{
mpImpl->doSubMatrix(*rMat.mpImpl);
return *this ;
}
B3DHomMatrix& B3DHomMatrix::operator *=(double fValue)
{
const double fOne(1 .0 );
if (!fTools::equal(fOne, fValue))
mpImpl->doMulMatrix(fValue);
return *this ;
}
B3DHomMatrix& B3DHomMatrix::operator /=(double fValue)
{
const double fOne(1 .0 );
if (!fTools::equal(fOne, fValue))
mpImpl->doMulMatrix(1 .0 / fValue);
return *this ;
}
B3DHomMatrix& B3DHomMatrix::operator *=(const B3DHomMatrix& rMat)
{
if (rMat.isIdentity())
{
// multiply with identity, no change -> nothing to do
}
else if (isIdentity())
{
// we are identity, result will be rMat -> assign
*this = rMat;
}
else
{
// multiply
mpImpl->doMulMatrix(*rMat.mpImpl);
}
return *this ;
}
bool B3DHomMatrix::operator ==(const B3DHomMatrix& rMat) const
{
if (mpImpl.same_object(rMat.mpImpl))
return true ;
return mpImpl->isEqual(*rMat.mpImpl);
}
void B3DHomMatrix::rotate(double fAngleX,double fAngleY,double fAngleZ)
{
if (fTools::equalZero(fAngleX) && fTools::equalZero(fAngleY) && fTools::equalZero(fAngleZ))
return ;
if (!fTools::equalZero(fAngleX))
{
Impl3DHomMatrix aRotMatX;
double fSin(sin(fAngleX));
double fCos(cos(fAngleX));
aRotMatX.set(1 , 1 , fCos);
aRotMatX.set(2 , 2 , fCos);
aRotMatX.set(2 , 1 , fSin);
aRotMatX.set(1 , 2 , -fSin);
mpImpl->doMulMatrix(aRotMatX);
}
if (!fTools::equalZero(fAngleY))
{
Impl3DHomMatrix aRotMatY;
double fSin(sin(fAngleY));
double fCos(cos(fAngleY));
aRotMatY.set(0 , 0 , fCos);
aRotMatY.set(2 , 2 , fCos);
aRotMatY.set(0 , 2 , fSin);
aRotMatY.set(2 , 0 , -fSin);
mpImpl->doMulMatrix(aRotMatY);
}
if (fTools::equalZero(fAngleZ))
return ;
Impl3DHomMatrix aRotMatZ;
double fSin(sin(fAngleZ));
double fCos(cos(fAngleZ));
aRotMatZ.set(0 , 0 , fCos);
aRotMatZ.set(1 , 1 , fCos);
aRotMatZ.set(1 , 0 , fSin);
aRotMatZ.set(0 , 1 , -fSin);
mpImpl->doMulMatrix(aRotMatZ);
}
void B3DHomMatrix::rotate(const B3DTuple& rRotation)
{
rotate(rRotation.getX(), rRotation.getY(), rRotation.getZ());
}
void B3DHomMatrix::translate(double fX, double fY, double fZ)
{
if (!fTools::equalZero(fX) || !fTools::equalZero(fY) || !fTools::equalZero(fZ))
{
Impl3DHomMatrix aTransMat;
aTransMat.set(0 , 3 , fX);
aTransMat.set(1 , 3 , fY);
aTransMat.set(2 , 3 , fZ);
mpImpl->doMulMatrix(aTransMat);
}
}
void B3DHomMatrix::translate(const B3DTuple& rRotation)
{
translate(rRotation.getX(), rRotation.getY(), rRotation.getZ());
}
void B3DHomMatrix::scale(double fX, double fY, double fZ)
{
const double fOne(1 .0 );
if (!fTools::equal(fOne, fX) || !fTools::equal(fOne, fY) ||!fTools::equal(fOne, fZ))
{
Impl3DHomMatrix aScaleMat;
aScaleMat.set(0 , 0 , fX);
aScaleMat.set(1 , 1 , fY);
aScaleMat.set(2 , 2 , fZ);
mpImpl->doMulMatrix(aScaleMat);
}
}
void B3DHomMatrix::scale(const B3DTuple& rRotation)
{
scale(rRotation.getX(), rRotation.getY(), rRotation.getZ());
}
void B3DHomMatrix::shearXY(double fSx, double fSy)
{
// #i76239# do not test against 1.0, but against 0.0. We are talking about a value not on the diagonal (!)
if (!fTools::equalZero(fSx) || !fTools::equalZero(fSy))
{
Impl3DHomMatrix aShearXYMat;
aShearXYMat.set(0 , 2 , fSx);
aShearXYMat.set(1 , 2 , fSy);
mpImpl->doMulMatrix(aShearXYMat);
}
}
void B3DHomMatrix::shearXZ(double fSx, double fSz)
{
// #i76239# do not test against 1.0, but against 0.0. We are talking about a value not on the diagonal (!)
if (!fTools::equalZero(fSx) || !fTools::equalZero(fSz))
{
Impl3DHomMatrix aShearXZMat;
aShearXZMat.set(0 , 1 , fSx);
aShearXZMat.set(2 , 1 , fSz);
mpImpl->doMulMatrix(aShearXZMat);
}
}
void B3DHomMatrix::frustum(double fLeft, double fRight, double fBottom, double fTop, double fNear, double fFar)
{
const double fZero(0 .0 );
const double fOne(1 .0 );
if (!fTools::more(fNear, fZero))
{
fNear = 0 .001 ;
}
if (!fTools::more(fFar, fZero))
{
fFar = fOne;
}
if (fTools::equal(fNear, fFar))
{
fFar = fNear + fOne;
}
if (fTools::equal(fLeft, fRight))
{
fLeft -= fOne;
fRight += fOne;
}
if (fTools::equal(fTop, fBottom))
{
fBottom -= fOne;
fTop += fOne;
}
Impl3DHomMatrix aFrustumMat;
aFrustumMat.set(0 , 0 , 2 .0 * fNear / (fRight - fLeft));
aFrustumMat.set(1 , 1 , 2 .0 * fNear / (fTop - fBottom));
aFrustumMat.set(0 , 2 , (fRight + fLeft) / (fRight - fLeft));
aFrustumMat.set(1 , 2 , (fTop + fBottom) / (fTop - fBottom));
aFrustumMat.set(2 , 2 , -fOne * ((fFar + fNear) / (fFar - fNear)));
aFrustumMat.set(3 , 2 , -fOne);
aFrustumMat.set(2 , 3 , -fOne * ((2 .0 * fFar * fNear) / (fFar - fNear)));
aFrustumMat.set(3 , 3 , fZero);
mpImpl->doMulMatrix(aFrustumMat);
}
void B3DHomMatrix::ortho(double fLeft, double fRight, double fBottom, double fTop, double fNear, double fFar)
{
if (fTools::equal(fNear, fFar))
{
fFar = fNear + 1 .0 ;
}
if (fTools::equal(fLeft, fRight))
{
fLeft -= 1 .0 ;
fRight += 1 .0 ;
}
if (fTools::equal(fTop, fBottom))
{
fBottom -= 1 .0 ;
fTop += 1 .0 ;
}
Impl3DHomMatrix aOrthoMat;
aOrthoMat.set(0 , 0 , 2 .0 / (fRight - fLeft));
aOrthoMat.set(1 , 1 , 2 .0 / (fTop - fBottom));
aOrthoMat.set(2 , 2 , -1 .0 * (2 .0 / (fFar - fNear)));
aOrthoMat.set(0 , 3 , -1 .0 * ((fRight + fLeft) / (fRight - fLeft)));
aOrthoMat.set(1 , 3 , -1 .0 * ((fTop + fBottom) / (fTop - fBottom)));
aOrthoMat.set(2 , 3 , -1 .0 * ((fFar + fNear) / (fFar - fNear)));
mpImpl->doMulMatrix(aOrthoMat);
}
void B3DHomMatrix::orientation(const B3DPoint& rVRP, B3DVector aVPN, B3DVector aVUV)
{
Impl3DHomMatrix aOrientationMat;
// translate -VRP
aOrientationMat.set(0 , 3 , -rVRP.getX());
aOrientationMat.set(1 , 3 , -rVRP.getY());
aOrientationMat.set(2 , 3 , -rVRP.getZ());
// build rotation
aVUV.normalize();
aVPN.normalize();
// build x-axis as perpendicular from aVUV and aVPN
B3DVector aRx(aVUV.getPerpendicular(aVPN));
aRx.normalize();
// y-axis perpendicular to that
B3DVector aRy(aVPN.getPerpendicular(aRx));
aRy.normalize();
// the calculated normals are the line vectors of the rotation matrix,
// set them to create rotation
aOrientationMat.set(0 , 0 , aRx.getX());
aOrientationMat.set(0 , 1 , aRx.getY());
aOrientationMat.set(0 , 2 , aRx.getZ());
aOrientationMat.set(1 , 0 , aRy.getX());
aOrientationMat.set(1 , 1 , aRy.getY());
aOrientationMat.set(1 , 2 , aRy.getZ());
aOrientationMat.set(2 , 0 , aVPN.getX());
aOrientationMat.set(2 , 1 , aVPN.getY());
aOrientationMat.set(2 , 2 , aVPN.getZ());
mpImpl->doMulMatrix(aOrientationMat);
}
void B3DHomMatrix::decompose(B3DTuple& rScale, B3DTuple& rTranslate, B3DTuple& rRotate, B3DTuple& rShear) const
{
// when perspective is used, decompose is not made here
if (!mpImpl->isLastLineDefault())
return ;
// If determinant is zero, decomposition is not possible
if (determinant() == 0 .0 )
return ;
// isolate translation
rTranslate.setX(mpImpl->get(0 , 3 ));
rTranslate.setY(mpImpl->get(1 , 3 ));
rTranslate.setZ(mpImpl->get(2 , 3 ));
// correct translate values
rTranslate.correctValues();
// get scale and shear
B3DVector aCol0(mpImpl->get(0 , 0 ), mpImpl->get(1 , 0 ), mpImpl->get(2 , 0 ));
B3DVector aCol1(mpImpl->get(0 , 1 ), mpImpl->get(1 , 1 ), mpImpl->get(2 , 1 ));
B3DVector aCol2(mpImpl->get(0 , 2 ), mpImpl->get(1 , 2 ), mpImpl->get(2 , 2 ));
B3DVector aTemp;
// get ScaleX
rScale.setX(aCol0.getLength());
aCol0.normalize();
// get ShearXY
rShear.setX(aCol0.scalar(aCol1));
if (fTools::equalZero(rShear.getX()))
{
rShear.setX(0 .0 );
}
else
{
aTemp.setX(aCol1.getX() - rShear.getX() * aCol0.getX());
aTemp.setY(aCol1.getY() - rShear.getX() * aCol0.getY());
aTemp.setZ(aCol1.getZ() - rShear.getX() * aCol0.getZ());
aCol1 = aTemp;
}
// get ScaleY
rScale.setY(aCol1.getLength());
aCol1.normalize();
const double fShearX(rShear.getX());
if (!fTools::equalZero(fShearX))
{
rShear.setX(rShear.getX() / rScale.getY());
}
// get ShearXZ
rShear.setY(aCol0.scalar(aCol2));
if (fTools::equalZero(rShear.getY()))
{
rShear.setY(0 .0 );
}
else
{
aTemp.setX(aCol2.getX() - rShear.getY() * aCol0.getX());
aTemp.setY(aCol2.getY() - rShear.getY() * aCol0.getY());
aTemp.setZ(aCol2.getZ() - rShear.getY() * aCol0.getZ());
aCol2 = aTemp;
}
// get ShearYZ
rShear.setZ(aCol1.scalar(aCol2));
if (fTools::equalZero(rShear.getZ()))
{
rShear.setZ(0 .0 );
}
else
{
aTemp.setX(aCol2.getX() - rShear.getZ() * aCol1.getX());
aTemp.setY(aCol2.getY() - rShear.getZ() * aCol1.getY());
aTemp.setZ(aCol2.getZ() - rShear.getZ() * aCol1.getZ());
aCol2 = aTemp;
}
// get ScaleZ
rScale.setZ(aCol2.getLength());
aCol2.normalize();
const double fShearY(rShear.getY());
if (!fTools::equalZero(fShearY))
{
// coverity[copy_paste_error : FALSE] - this is correct getZ, not getY
rShear.setY(rShear.getY() / rScale.getZ());
}
const double fShearZ(rShear.getZ());
if (!fTools::equalZero(fShearZ))
{
// coverity[original] - this is not an original copy-and-paste source for ^^^
rShear.setZ(rShear.getZ() / rScale.getZ());
}
// correct shear values
rShear.correctValues();
// Coordinate system flip?
if (0 .0 > aCol0.scalar(aCol1.getPerpendicular(aCol2)))
{
rScale = -rScale;
aCol0 = -aCol0;
aCol1 = -aCol1;
aCol2 = -aCol2;
}
// correct scale values
rScale.correctValues(1 .0 );
// Get rotations
{
double fy=0 ;
double cy=0 ;
if ( ::basegfx::fTools::equal( aCol0.getZ(), 1 .0 )
|| aCol0.getZ() > 1 .0 )
{
fy = -M_PI/2 .0 ;
cy = 0 .0 ;
}
else if ( ::basegfx::fTools::equal( aCol0.getZ(), -1 .0 )
|| aCol0.getZ() < -1 .0 )
{
fy = M_PI/2 .0 ;
cy = 0 .0 ;
}
else
{
fy = asin( -aCol0.getZ() );
cy = cos(fy);
}
rRotate.setY(fy);
if ( ::basegfx::fTools::equalZero( cy ) )
{
if ( aCol0.getZ() > 0 .0 )
rRotate.setX(atan2(-1 .0 *aCol1.getX(), aCol1.getY()));
else
rRotate.setX(atan2(aCol1.getX(), aCol1.getY()));
rRotate.setZ(0 .0 );
}
else
{
rRotate.setX(atan2(aCol1.getZ(), aCol2.getZ()));
rRotate.setZ(atan2(aCol0.getY(), aCol0.getX()));
}
// correct rotate values
rRotate.correctValues();
}
}
} // end of namespace basegfx
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
Messung V0.5 in Prozent C=94 H=100 G=96
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(vorverarbeitet am 2026-09-29)
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