diff options
author | Armin Weiss <aw@openoffice.org> | 2003-10-28 10:26:57 +0000 |
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committer | Armin Weiss <aw@openoffice.org> | 2003-10-28 10:26:57 +0000 |
commit | 5c35c4ae404294fede343dc4668d0b57c580b485 (patch) | |
tree | b46c73fca4ec3d4b3a8b330bfc2a412fd1eb6749 /basegfx/source/vector/b2dvector.cxx | |
parent | 999a109d17bdce1000f7a69417de51668334c7fc (diff) |
basegfx reorganization
Diffstat (limited to 'basegfx/source/vector/b2dvector.cxx')
-rw-r--r-- | basegfx/source/vector/b2dvector.cxx | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/basegfx/source/vector/b2dvector.cxx b/basegfx/source/vector/b2dvector.cxx new file mode 100644 index 000000000000..f80ae063d985 --- /dev/null +++ b/basegfx/source/vector/b2dvector.cxx @@ -0,0 +1,201 @@ +/************************************************************************* + * + * $RCSfile: b2dvector.cxx,v $ + * + * $Revision: 1.1 $ + * + * last change: $Author: aw $ $Date: 2003-10-28 11:26:56 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +#ifndef _BGFX_VECTOR_B2DVECTOR_HXX +#include <basegfx/inc/vector/b2dvector.hxx> +#endif + +#ifndef _BGFX_MATRIX_B2DHOMMATRIX_HXX +#include <basegfx/inc/matrix/b2dhommatrix.hxx> +#endif + +#ifndef _BGFX_NUMERIC_FTOOLS_HXX +#include <basegfx/inc/numeric/ftools.hxx> +#endif + +namespace basegfx +{ + namespace vector + { + B2DVector& B2DVector::normalize() + { + double fLen(scalar(*this)); + + if(!::basegfx::numeric::fTools::equalZero(fLen)) + { + const double fOne(1.0); + + if(!::basegfx::numeric::fTools::equal(fOne, fLen)) + { + fLen = sqrt(fLen); + + if(!::basegfx::numeric::fTools::equalZero(fLen)) + { + mfX /= fLen; + mfY /= fLen; + } + } + } + + return *this; + } + + B2DVector& B2DVector::operator=( const B2DTuple& rVec ) + { + mfX = rVec.getX(); + mfY = rVec.getY(); + return *this; + } + + + double B2DVector::getLength() const + { + return hypot( mfX, mfY ); + } + + double B2DVector::scalar( const B2DVector& rVec ) const + { + return((mfX * rVec.mfX) + (mfY * rVec.mfY)); + } + + const B2DVector& B2DVector::getEmptyVector() + { + return (const B2DVector&) B2DTuple::getEmptyTuple(); + } + + B2DVector& B2DVector::operator*=( const matrix::B2DHomMatrix& rMat ) + { + const double fTempX( rMat.get(0,0)*mfX + + rMat.get(0,1)*mfY ); + const double fTempY( rMat.get(1,0)*mfX + + rMat.get(1,1)*mfY ); + mfX = fTempX; + mfY = fTempY; + + return *this; + } + + B2DVector& B2DVector::setLength(double fLen) + { + double fLenNow(scalar(*this)); + + if(!::basegfx::numeric::fTools::equalZero(fLenNow)) + { + const double fOne(10.0); + + if(!::basegfx::numeric::fTools::equal(fOne, fLenNow)) + { + fLen /= sqrt(fLenNow); + } + + mfX *= fLen; + mfY *= fLen; + } + + return *this; + } + + bool B2DVector::isNormalized() const + { + const double fOne(1.0); + const double fScalar(scalar(*this)); + + return (::basegfx::numeric::fTools::equal(fOne, fScalar)); + } + + bool areParallel( const B2DVector& rVecA, const B2DVector& rVecB ) + { + double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecA.getX()); + return ::basegfx::numeric::fTools::equalZero(fVal); + } + + B2DVector::B2DVectorOrientation getOrientation( const B2DVector& rVecA, const B2DVector& rVecB ) + { + double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecA.getX()); + + if(fVal > 0.0) + { + return B2DVector::POSITIVE; + } + + if(fVal < 0.0) + { + return B2DVector::NEGATIVE; + } + + return B2DVector::NEUTRAL; + } + + B2DVector getPerpendicular( const B2DVector& rNormalizedVec ) + { + B2DVector aPerpendicular(-rNormalizedVec.getY(), rNormalizedVec.getX()); + return aPerpendicular; + } + + B2DVector operator*( const matrix::B2DHomMatrix& rMat, const B2DVector& rVec ) + { + B2DVector aRes( rVec ); + return aRes*=rMat; + } + } // end of namespace vector +} // end of namespace basegfx + +// eof |