2003-10-28 04:26:57 -06:00
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/*************************************************************************
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*
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2005-09-07 14:42:35 -05:00
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* OpenOffice.org - a multi-platform office productivity suite
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2003-10-28 04:26:57 -06:00
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*
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2005-09-07 14:42:35 -05:00
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* $RCSfile: b3dhommatrix.cxx,v $
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2003-10-28 04:26:57 -06:00
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*
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2006-09-17 01:59:09 -05:00
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* $Revision: 1.11 $
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2003-10-28 04:26:57 -06:00
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*
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2006-09-17 01:59:09 -05:00
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* last change: $Author: obo $ $Date: 2006-09-17 07:59:09 $
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2003-10-28 04:26:57 -06:00
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*
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2005-09-07 14:42:35 -05:00
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* The Contents of this file are made available subject to
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* the terms of GNU Lesser General Public License Version 2.1.
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2003-10-28 04:26:57 -06:00
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*
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*
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2005-09-07 14:42:35 -05:00
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2005 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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2003-10-28 04:26:57 -06:00
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*
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2005-09-07 14:42:35 -05:00
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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2003-10-28 04:26:57 -06:00
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*
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2005-09-07 14:42:35 -05:00
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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2003-10-28 04:26:57 -06:00
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*
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2005-09-07 14:42:35 -05:00
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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2003-10-28 04:26:57 -06:00
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*
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************************************************************************/
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2006-09-17 01:59:09 -05:00
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_basegfx.hxx"
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2006-07-13 03:56:42 -05:00
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#ifndef INCLUDED_RTL_INSTANCE_HXX
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#include <rtl/instance.hxx>
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#endif
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2003-10-28 04:26:57 -06:00
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#ifndef _BGFX_MATRIX_B3DHOMMATRIX_HXX
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2003-10-31 03:14:00 -06:00
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#include <basegfx/matrix/b3dhommatrix.hxx>
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#endif
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#ifndef _HOMMATRIX_TEMPLATE_HXX
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#include <hommatrixtemplate.hxx>
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#endif
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#ifndef _BGFX_VECTOR_B3DVECTOR_HXX
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#include <basegfx/vector/b3dvector.hxx>
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#endif
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namespace basegfx
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{
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class Impl3DHomMatrix : public ::basegfx::internal::ImplHomMatrixTemplate< 4 >
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{
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};
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2003-11-10 08:10:57 -06:00
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2006-07-13 03:56:42 -05:00
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namespace { struct IdentityMatrix : public rtl::Static< B3DHomMatrix::ImplType,
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IdentityMatrix > {}; }
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B3DHomMatrix::B3DHomMatrix() :
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mpImpl( IdentityMatrix::get() ) // use common identity matrix
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{
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}
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B3DHomMatrix::B3DHomMatrix(const B3DHomMatrix& rMat) :
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mpImpl(rMat.mpImpl)
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{
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}
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2003-11-28 04:18:16 -06:00
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B3DHomMatrix::~B3DHomMatrix()
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{
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}
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2003-11-28 04:18:16 -06:00
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B3DHomMatrix& B3DHomMatrix::operator=(const B3DHomMatrix& rMat)
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{
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mpImpl = rMat.mpImpl;
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return *this;
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}
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2006-07-13 03:56:42 -05:00
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void B3DHomMatrix::makeUnique()
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{
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mpImpl.make_unique();
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}
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2003-11-28 04:18:16 -06:00
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double B3DHomMatrix::get(sal_uInt16 nRow, sal_uInt16 nColumn) const
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{
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return mpImpl->get(nRow, nColumn);
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2003-11-28 04:18:16 -06:00
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}
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2003-11-28 04:18:16 -06:00
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void B3DHomMatrix::set(sal_uInt16 nRow, sal_uInt16 nColumn, double fValue)
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{
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mpImpl->set(nRow, nColumn, fValue);
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2003-11-28 04:18:16 -06:00
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}
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2003-10-28 04:26:57 -06:00
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2005-11-02 06:56:38 -06:00
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bool B3DHomMatrix::isLastLineDefault() const
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{
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return mpImpl->isLastLineDefault();
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2005-11-02 06:56:38 -06:00
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}
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2004-01-16 03:34:43 -06:00
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bool B3DHomMatrix::isIdentity() const
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2003-11-28 04:18:16 -06:00
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{
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if(mpImpl.same_object(IdentityMatrix::get()))
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return true;
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2003-10-28 04:26:57 -06:00
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2006-07-13 03:56:42 -05:00
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return mpImpl->isIdentity();
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2003-11-28 04:18:16 -06:00
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}
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void B3DHomMatrix::identity()
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{
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mpImpl = IdentityMatrix::get();
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2003-11-28 04:18:16 -06:00
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}
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2004-01-16 03:34:43 -06:00
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bool B3DHomMatrix::isInvertible() const
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{
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return mpImpl->isInvertible();
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2003-11-28 04:18:16 -06:00
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}
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2004-01-16 03:34:43 -06:00
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bool B3DHomMatrix::invert()
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{
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Impl3DHomMatrix aWork(*mpImpl);
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sal_uInt16* pIndex = new sal_uInt16[mpImpl->getEdgeLength()];
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sal_Int16 nParity;
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2003-11-28 04:18:16 -06:00
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if(aWork.ludcmp(pIndex, nParity))
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2003-10-28 04:26:57 -06:00
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{
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mpImpl->doInvert(aWork, pIndex);
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2004-11-26 11:38:01 -06:00
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delete[] pIndex;
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2003-10-28 04:26:57 -06:00
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2004-01-16 03:34:43 -06:00
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return true;
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2003-10-28 04:26:57 -06:00
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}
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2004-11-26 11:38:01 -06:00
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delete[] pIndex;
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2004-01-16 03:34:43 -06:00
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return false;
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2003-11-28 04:18:16 -06:00
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}
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2004-01-16 03:34:43 -06:00
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bool B3DHomMatrix::isNormalized() const
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{
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return mpImpl->isNormalized();
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2003-11-28 04:18:16 -06:00
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}
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void B3DHomMatrix::normalize()
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{
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2006-07-13 03:56:42 -05:00
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if(!const_cast<const B3DHomMatrix*>(this)->mpImpl->isNormalized())
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mpImpl->doNormalize();
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2003-11-28 04:18:16 -06:00
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}
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2003-11-28 04:18:16 -06:00
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double B3DHomMatrix::determinant() const
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{
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return mpImpl->doDeterminant();
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}
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2003-11-28 04:18:16 -06:00
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double B3DHomMatrix::trace() const
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{
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return mpImpl->doTrace();
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}
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2003-11-28 04:18:16 -06:00
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void B3DHomMatrix::transpose()
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{
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mpImpl->doTranspose();
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}
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2003-11-28 04:18:16 -06:00
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B3DHomMatrix& B3DHomMatrix::operator+=(const B3DHomMatrix& rMat)
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{
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mpImpl->doAddMatrix(*rMat.mpImpl);
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2003-11-28 04:18:16 -06:00
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return *this;
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}
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2003-10-28 04:26:57 -06:00
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2003-11-28 04:18:16 -06:00
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B3DHomMatrix& B3DHomMatrix::operator-=(const B3DHomMatrix& rMat)
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{
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mpImpl->doSubMatrix(*rMat.mpImpl);
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2003-11-28 04:18:16 -06:00
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return *this;
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}
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2003-10-28 04:26:57 -06:00
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2003-11-28 04:18:16 -06:00
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B3DHomMatrix& B3DHomMatrix::operator*=(double fValue)
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{
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const double fOne(1.0);
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2006-07-13 03:56:42 -05:00
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if(!fTools::equal(fOne, fValue))
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mpImpl->doMulMatrix(fValue);
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2003-11-28 04:18:16 -06:00
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return *this;
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}
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B3DHomMatrix& B3DHomMatrix::operator/=(double fValue)
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{
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const double fOne(1.0);
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2006-07-13 03:56:42 -05:00
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if(!fTools::equal(fOne, fValue))
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mpImpl->doMulMatrix(1.0 / fValue);
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2003-11-28 04:18:16 -06:00
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return *this;
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}
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B3DHomMatrix& B3DHomMatrix::operator*=(const B3DHomMatrix& rMat)
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{
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if(!rMat.isIdentity())
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mpImpl->doMulMatrix(*rMat.mpImpl);
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2003-11-28 04:18:16 -06:00
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return *this;
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}
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2003-10-28 04:26:57 -06:00
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2004-01-16 03:34:43 -06:00
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bool B3DHomMatrix::operator==(const B3DHomMatrix& rMat) const
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{
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2006-07-13 03:56:42 -05:00
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if(mpImpl.same_object(rMat.mpImpl))
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2004-01-16 03:34:43 -06:00
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return true;
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2003-10-28 04:26:57 -06:00
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2006-07-13 03:56:42 -05:00
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return mpImpl->isEqual(*rMat.mpImpl);
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2003-11-28 04:18:16 -06:00
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}
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2004-01-16 03:34:43 -06:00
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bool B3DHomMatrix::operator!=(const B3DHomMatrix& rMat) const
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{
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2006-07-13 03:56:42 -05:00
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return !(*this == rMat);
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}
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void B3DHomMatrix::rotate(double fAngleX,double fAngleY,double fAngleZ)
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{
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if(!fTools::equalZero(fAngleX) || !fTools::equalZero(fAngleY) || !fTools::equalZero(fAngleZ))
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2003-10-28 04:26:57 -06:00
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{
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2006-07-13 03:56:42 -05:00
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if(!fTools::equalZero(fAngleX))
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2003-10-28 04:26:57 -06:00
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{
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2006-07-13 03:56:42 -05:00
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Impl3DHomMatrix aRotMatX;
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double fSin(sin(fAngleX));
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double fCos(cos(fAngleX));
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2003-10-28 04:26:57 -06:00
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2003-11-28 04:18:16 -06:00
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aRotMatX.set(1, 1, fCos);
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aRotMatX.set(2, 2, fCos);
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aRotMatX.set(2, 1, fSin);
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aRotMatX.set(1, 2, -fSin);
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2003-10-28 04:26:57 -06:00
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2006-07-13 03:56:42 -05:00
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mpImpl->doMulMatrix(aRotMatX);
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2003-10-28 04:26:57 -06:00
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}
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2006-07-13 03:56:42 -05:00
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if(!fTools::equalZero(fAngleY))
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2003-11-28 04:18:16 -06:00
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{
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2006-07-13 03:56:42 -05:00
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Impl3DHomMatrix aRotMatY;
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double fSin(sin(fAngleY));
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double fCos(cos(fAngleY));
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2003-10-28 04:26:57 -06:00
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2003-11-28 04:18:16 -06:00
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aRotMatY.set(0, 0, fCos);
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aRotMatY.set(2, 2, fCos);
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aRotMatY.set(0, 2, fSin);
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aRotMatY.set(2, 0, -fSin);
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2003-10-28 04:26:57 -06:00
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2006-07-13 03:56:42 -05:00
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mpImpl->doMulMatrix(aRotMatY);
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2003-11-28 04:18:16 -06:00
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}
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2003-10-28 04:26:57 -06:00
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2006-07-13 03:56:42 -05:00
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if(!fTools::equalZero(fAngleZ))
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2003-11-28 04:18:16 -06:00
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{
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2006-07-13 03:56:42 -05:00
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Impl3DHomMatrix aRotMatZ;
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2003-11-28 04:18:16 -06:00
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double fSin(sin(fAngleZ));
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double fCos(cos(fAngleZ));
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2003-10-28 04:26:57 -06:00
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2003-11-28 04:18:16 -06:00
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aRotMatZ.set(0, 0, fCos);
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aRotMatZ.set(1, 1, fCos);
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aRotMatZ.set(1, 0, fSin);
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aRotMatZ.set(0, 1, -fSin);
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2003-10-28 04:26:57 -06:00
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2006-07-13 03:56:42 -05:00
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mpImpl->doMulMatrix(aRotMatZ);
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2003-10-28 04:26:57 -06:00
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}
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}
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2003-11-28 04:18:16 -06:00
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}
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2003-11-28 04:18:16 -06:00
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void B3DHomMatrix::translate(double fX, double fY, double fZ)
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{
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2006-07-13 03:56:42 -05:00
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if(!fTools::equalZero(fX) || !fTools::equalZero(fY) || !fTools::equalZero(fZ))
|
2003-10-28 04:26:57 -06:00
|
|
|
{
|
2006-07-13 03:56:42 -05:00
|
|
|
Impl3DHomMatrix aTransMat;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2005-11-02 06:56:38 -06:00
|
|
|
aTransMat.set(0, 3, fX);
|
|
|
|
aTransMat.set(1, 3, fY);
|
|
|
|
aTransMat.set(2, 3, fZ);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
mpImpl->doMulMatrix(aTransMat);
|
2003-10-28 04:26:57 -06:00
|
|
|
}
|
2003-11-28 04:18:16 -06:00
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
void B3DHomMatrix::scale(double fX, double fY, double fZ)
|
|
|
|
{
|
|
|
|
const double fOne(1.0);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
if(!fTools::equal(fOne, fX) || !fTools::equal(fOne, fY) ||!fTools::equal(fOne, fZ))
|
2003-11-28 04:18:16 -06:00
|
|
|
{
|
2006-07-13 03:56:42 -05:00
|
|
|
Impl3DHomMatrix aScaleMat;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
aScaleMat.set(0, 0, fX);
|
|
|
|
aScaleMat.set(1, 1, fY);
|
|
|
|
aScaleMat.set(2, 2, fZ);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
mpImpl->doMulMatrix(aScaleMat);
|
2003-10-28 04:26:57 -06:00
|
|
|
}
|
2003-11-28 04:18:16 -06:00
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
void B3DHomMatrix::shearXY(double fSx, double fSy)
|
|
|
|
{
|
|
|
|
const double fOne(1.0);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
if(!fTools::equal(fOne, fSx) || !fTools::equal(fOne, fSy))
|
2003-11-28 04:18:16 -06:00
|
|
|
{
|
2006-07-13 03:56:42 -05:00
|
|
|
Impl3DHomMatrix aShearXYMat;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
aShearXYMat.set(0, 2, fSx);
|
|
|
|
aShearXYMat.set(1, 2, fSy);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
mpImpl->doMulMatrix(aShearXYMat);
|
2003-10-28 04:26:57 -06:00
|
|
|
}
|
2003-11-28 04:18:16 -06:00
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
void B3DHomMatrix::shearYZ(double fSy, double fSz)
|
|
|
|
{
|
|
|
|
const double fOne(1.0);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
if(!fTools::equal(fOne, fSy) || !fTools::equal(fOne, fSz))
|
2003-11-28 04:18:16 -06:00
|
|
|
{
|
2006-07-13 03:56:42 -05:00
|
|
|
Impl3DHomMatrix aShearYZMat;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
aShearYZMat.set(1, 0, fSy);
|
|
|
|
aShearYZMat.set(2, 0, fSz);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
mpImpl->doMulMatrix(aShearYZMat);
|
2003-10-28 04:26:57 -06:00
|
|
|
}
|
2003-11-28 04:18:16 -06:00
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
void B3DHomMatrix::shearXZ(double fSx, double fSz)
|
|
|
|
{
|
|
|
|
const double fOne(1.0);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
if(!fTools::equal(fOne, fSx) || !fTools::equal(fOne, fSz))
|
2003-11-28 04:18:16 -06:00
|
|
|
{
|
2006-07-13 03:56:42 -05:00
|
|
|
Impl3DHomMatrix aShearXZMat;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
aShearXZMat.set(0, 1, fSx);
|
|
|
|
aShearXZMat.set(2, 1, fSz);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2006-07-13 03:56:42 -05:00
|
|
|
mpImpl->doMulMatrix(aShearXZMat);
|
2003-10-28 04:26:57 -06:00
|
|
|
}
|
2003-11-28 04:18:16 -06:00
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2004-01-16 03:34:43 -06:00
|
|
|
bool B3DHomMatrix::decompose(B3DTuple& rScale, B3DTuple& rTranslate, B3DTuple& rRotate, B3DTuple& rShear) const
|
2003-11-28 04:18:16 -06:00
|
|
|
{
|
|
|
|
// when perspective is used, decompose is not made here
|
2006-07-13 03:56:42 -05:00
|
|
|
if(!mpImpl->isLastLineDefault())
|
2004-01-16 03:34:43 -06:00
|
|
|
return false;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// If determinant is zero, decomposition is not possible
|
2006-07-13 03:56:42 -05:00
|
|
|
if(0.0 == determinant())
|
2004-01-16 03:34:43 -06:00
|
|
|
return false;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// isolate translation
|
2006-07-13 03:56:42 -05:00
|
|
|
rTranslate.setX(mpImpl->get(0, 3));
|
|
|
|
rTranslate.setY(mpImpl->get(1, 3));
|
|
|
|
rTranslate.setZ(mpImpl->get(2, 3));
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// correct translate values
|
|
|
|
rTranslate.correctValues();
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get scale and shear
|
2006-07-13 03:56:42 -05:00
|
|
|
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));
|
2003-11-28 04:18:16 -06:00
|
|
|
B3DVector aTemp;
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get ScaleX
|
|
|
|
rScale.setX(aCol0.getLength());
|
|
|
|
aCol0.normalize();
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get ShearXY
|
|
|
|
rShear.setX(aCol0.scalar(aCol1));
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(::basegfx::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;
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get ScaleY
|
|
|
|
rScale.setY(aCol1.getLength());
|
|
|
|
aCol1.normalize();
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
const double fShearX(rShear.getX());
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(!::basegfx::fTools::equalZero(fShearX))
|
|
|
|
{
|
|
|
|
rShear.setX(rShear.getX() / rScale.getY());
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get ShearXZ
|
|
|
|
rShear.setY(aCol0.scalar(aCol2));
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(::basegfx::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;
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get ShearYZ
|
|
|
|
rShear.setZ(aCol1.scalar(aCol2));
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(::basegfx::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;
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// get ScaleZ
|
|
|
|
rScale.setZ(aCol2.getLength());
|
|
|
|
aCol2.normalize();
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
const double fShearY(rShear.getY());
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(!::basegfx::fTools::equalZero(fShearY))
|
|
|
|
{
|
|
|
|
rShear.setY(rShear.getY() / rScale.getZ());
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
const double fShearZ(rShear.getZ());
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(!::basegfx::fTools::equalZero(fShearZ))
|
|
|
|
{
|
|
|
|
rShear.setZ(rShear.getZ() / rScale.getZ());
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// correct shear values
|
|
|
|
rShear.correctValues();
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// Coordinate system flip?
|
|
|
|
if(0.0 > aCol0.scalar(aCol1.getPerpendicular(aCol2)))
|
|
|
|
{
|
|
|
|
rScale = -rScale;
|
|
|
|
aCol0 = -aCol0;
|
|
|
|
aCol1 = -aCol1;
|
|
|
|
aCol2 = -aCol2;
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// correct scale values
|
|
|
|
rScale.correctValues(1.0);
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// Get rotations
|
|
|
|
rRotate.setY(asin(-aCol0.getZ()));
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
if(::basegfx::fTools::equalZero(cos(rRotate.getY())))
|
|
|
|
{
|
|
|
|
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()));
|
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2003-11-28 04:18:16 -06:00
|
|
|
// corrcet rotate values
|
|
|
|
rRotate.correctValues();
|
2003-10-28 04:26:57 -06:00
|
|
|
|
2004-01-16 03:34:43 -06:00
|
|
|
return true;
|
2003-11-28 04:18:16 -06:00
|
|
|
}
|
2003-10-28 04:26:57 -06:00
|
|
|
} // end of namespace basegfx
|
|
|
|
|
|
|
|
// eof
|