4905a19032
Fixes #fdo30794 Based on bin/add-modelines script (originally posted in mail 1286706307.1871.1399280959@webmail.messagingengine.com) Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
118 lines
3.8 KiB
C++
118 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org 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
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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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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#include <basegfx/vector/b3dvector.hxx>
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#include <basegfx/matrix/b3dhommatrix.hxx>
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//////////////////////////////////////////////////////////////////////////////
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namespace basegfx
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{
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B3DVector& B3DVector::normalize()
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{
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double fLen(scalar(*this));
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if(!::basegfx::fTools::equalZero(fLen))
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{
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const double fOne(1.0);
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if(!::basegfx::fTools::equal(fOne, fLen))
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{
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fLen = sqrt(fLen);
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if(!::basegfx::fTools::equalZero(fLen))
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{
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mfX /= fLen;
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mfY /= fLen;
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mfZ /= fLen;
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}
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}
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}
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return *this;
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}
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B3DVector B3DVector::getPerpendicular(const B3DVector& rNormalizedVec) const
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{
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B3DVector aNew(*this);
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aNew = cross(aNew, rNormalizedVec);
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aNew.normalize();
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return aNew;
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}
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B3DVector B3DVector::getProjectionOnPlane(const B3DVector& rNormalizedPlane) const
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{
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B3DVector aNew(*this);
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aNew = cross(aNew, rNormalizedPlane);
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aNew = cross(aNew, rNormalizedPlane);
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aNew.mfX = mfX - aNew.mfX;
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aNew.mfY = mfY - aNew.mfY;
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aNew.mfZ = mfZ - aNew.mfZ;
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return aNew;
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}
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B3DVector& B3DVector::operator*=( const ::basegfx::B3DHomMatrix& rMat )
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{
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const double fTempX( rMat.get(0,0)*mfX + rMat.get(0,1)*mfY + rMat.get(0,2)*mfZ );
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const double fTempY( rMat.get(1,0)*mfX + rMat.get(1,1)*mfY + rMat.get(1,2)*mfZ );
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const double fTempZ( rMat.get(2,0)*mfX + rMat.get(2,1)*mfY + rMat.get(2,2)*mfZ );
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mfX = fTempX;
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mfY = fTempY;
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mfZ = fTempZ;
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return *this;
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}
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B3DVector operator*( const ::basegfx::B3DHomMatrix& rMat, const B3DVector& rVec )
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{
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B3DVector aRes( rVec );
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return aRes*=rMat;
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}
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bool areParallel( const B3DVector& rVecA, const B3DVector& rVecB )
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{
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// i think fastest is to compare relations, need no square or division
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if(!fTools::equal(rVecA.getX() * rVecB.getY(), rVecA.getY() * rVecB.getX()))
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return false;
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if(!fTools::equal(rVecA.getX() * rVecB.getZ(), rVecA.getZ() * rVecB.getX()))
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return false;
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return (fTools::equal(rVecA.getY() * rVecB.getZ(), rVecA.getZ() * rVecB.getY()));
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}
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} // end of namespace basegfx
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//////////////////////////////////////////////////////////////////////////////
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// eof
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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