diff options
Diffstat (limited to 'basegfx/source/vector/b2dvector.cxx')
| -rw-r--r-- | basegfx/source/vector/b2dvector.cxx | 233 |
1 files changed, 115 insertions, 118 deletions
diff --git a/basegfx/source/vector/b2dvector.cxx b/basegfx/source/vector/b2dvector.cxx index ed0325b446a5..d9c46044211c 100644 --- a/basegfx/source/vector/b2dvector.cxx +++ b/basegfx/source/vector/b2dvector.cxx @@ -2,9 +2,9 @@ * * $RCSfile: b2dvector.cxx,v $ * - * $Revision: 1.7 $ + * $Revision: 1.8 $ * - * last change: $Author: thb $ $Date: 2003-11-12 12:11:24 $ + * last change: $Author: aw $ $Date: 2003-11-28 11:18:15 $ * * The Contents of this file are made available subject to the terms of * either of the following licenses @@ -73,163 +73,160 @@ namespace basegfx { - namespace vector + B2DVector& B2DVector::normalize() { - B2DVector& B2DVector::normalize() + double fLen(scalar(*this)); + + if(!::basegfx::fTools::equalZero(fLen)) { - double fLen(scalar(*this)); + const double fOne(1.0); - if(!::basegfx::numeric::fTools::equalZero(fLen)) + if(!::basegfx::fTools::equal(fOne, fLen)) { - const double fOne(1.0); + fLen = sqrt(fLen); - if(!::basegfx::numeric::fTools::equal(fOne, fLen)) + if(!::basegfx::fTools::equalZero(fLen)) { - fLen = sqrt(fLen); - - if(!::basegfx::numeric::fTools::equalZero(fLen)) - { - mfX /= fLen; - mfY /= fLen; - } + mfX /= fLen; + mfY /= fLen; } } - - return *this; - } - - B2DVector& B2DVector::operator=( const ::basegfx::tuple::B2DTuple& rVec ) - { - mfX = rVec.getX(); - mfY = rVec.getY(); - return *this; } + return *this; + } - double B2DVector::getLength() const - { - return hypot( mfX, mfY ); - } - - double B2DVector::scalar( const B2DVector& rVec ) const - { - return((mfX * rVec.mfX) + (mfY * rVec.mfY)); - } + B2DVector& B2DVector::operator=( const ::basegfx::B2DTuple& rVec ) + { + mfX = rVec.getX(); + mfY = rVec.getY(); + return *this; + } - double B2DVector::cross( const B2DVector& rVec ) const - { - return(mfX * rVec.getY() - mfY * rVec.getX()); - } - double B2DVector::angle( const B2DVector& rVec ) const - { - return atan2(mfX * rVec.getY() - mfY * rVec.getX(), - mfX * rVec.getX() + mfY * rVec.getY()); - } + double B2DVector::getLength() const + { + return hypot( mfX, mfY ); + } - const B2DVector& B2DVector::getEmptyVector() - { - return (const B2DVector&) ::basegfx::tuple::B2DTuple::getEmptyTuple(); - } + double B2DVector::scalar( const B2DVector& rVec ) const + { + return((mfX * rVec.mfX) + (mfY * rVec.mfY)); + } - 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; - } + double B2DVector::cross( const B2DVector& rVec ) const + { + return(mfX * rVec.getY() - mfY * rVec.getX()); + } - B2DVector& B2DVector::setLength(double fLen) - { - double fLenNow(scalar(*this)); + double B2DVector::angle( const B2DVector& rVec ) const + { + return atan2(mfX * rVec.getY() - mfY * rVec.getX(), + mfX * rVec.getX() + mfY * rVec.getY()); + } - if(!::basegfx::numeric::fTools::equalZero(fLenNow)) - { - const double fOne(10.0); + const B2DVector& B2DVector::getEmptyVector() + { + return (const B2DVector&) ::basegfx::B2DTuple::getEmptyTuple(); + } - if(!::basegfx::numeric::fTools::equal(fOne, fLenNow)) - { - fLen /= sqrt(fLenNow); - } + B2DVector& B2DVector::operator*=( const 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; - mfX *= fLen; - mfY *= fLen; - } + return *this; + } - return *this; - } + B2DVector& B2DVector::setLength(double fLen) + { + double fLenNow(scalar(*this)); - sal_Bool B2DVector::isNormalized() const + if(!::basegfx::fTools::equalZero(fLenNow)) { - const double fOne(1.0); - const double fScalar(scalar(*this)); + const double fOne(10.0); - return (::basegfx::numeric::fTools::equal(fOne, fScalar)); - } + if(!::basegfx::fTools::equal(fOne, fLenNow)) + { + fLen /= sqrt(fLenNow); + } - sal_Bool areParallel( const B2DVector& rVecA, const B2DVector& rVecB ) - { - double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX()); - return ::basegfx::numeric::fTools::equalZero(fVal); + mfX *= fLen; + mfY *= fLen; } - B2DVectorOrientation getOrientation( const B2DVector& rVecA, const B2DVector& rVecB ) - { - double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX()); + return *this; + } - if(fVal > 0.0) - { - return ORIENTATION_POSITIVE; - } + sal_Bool B2DVector::isNormalized() const + { + const double fOne(1.0); + const double fScalar(scalar(*this)); - if(fVal < 0.0) - { - return ORIENTATION_NEGATIVE; - } + return (::basegfx::fTools::equal(fOne, fScalar)); + } - return ORIENTATION_NEUTRAL; - } + sal_Bool areParallel( const B2DVector& rVecA, const B2DVector& rVecB ) + { + double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX()); + return ::basegfx::fTools::equalZero(fVal); + } + + B2DVectorOrientation getOrientation( const B2DVector& rVecA, const B2DVector& rVecB ) + { + double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX()); - B2DVector getPerpendicular( const B2DVector& rNormalizedVec ) + if(fVal > 0.0) { - B2DVector aPerpendicular(-rNormalizedVec.getY(), rNormalizedVec.getX()); - return aPerpendicular; + return ORIENTATION_POSITIVE; } - B2DVector operator*( const matrix::B2DHomMatrix& rMat, const B2DVector& rVec ) + if(fVal < 0.0) { - B2DVector aRes( rVec ); - return aRes*=rMat; + return ORIENTATION_NEGATIVE; } - ::basegfx::vector::B2DVectorContinuity getContinuity(const B2DVector& rBackVector, const B2DVector& rForwardVector ) + return ORIENTATION_NEUTRAL; + } + + B2DVector getPerpendicular( const B2DVector& rNormalizedVec ) + { + B2DVector aPerpendicular(-rNormalizedVec.getY(), rNormalizedVec.getX()); + return aPerpendicular; + } + + B2DVector operator*( const B2DHomMatrix& rMat, const B2DVector& rVec ) + { + B2DVector aRes( rVec ); + return aRes*=rMat; + } + + ::basegfx::B2DVectorContinuity getContinuity(const B2DVector& rBackVector, const B2DVector& rForwardVector ) + { + ::basegfx::B2DVectorContinuity eRetval(::basegfx::CONTINUITY_NONE); + + if(!rBackVector.equalZero() && !rForwardVector.equalZero()) { - ::basegfx::vector::B2DVectorContinuity eRetval(::basegfx::vector::CONTINUITY_NONE); + const B2DVector aInverseForwardVector(-rForwardVector.getX(), -rForwardVector.getY()); - if(!rBackVector.equalZero() && !rForwardVector.equalZero()) + if(rBackVector.equal(aInverseForwardVector)) { - const B2DVector aInverseForwardVector(-rForwardVector.getX(), -rForwardVector.getY()); - - if(rBackVector.equal(aInverseForwardVector)) - { - // same direction and same length -> C2 - eRetval = ::basegfx::vector::CONTINUITY_C2; - } - else if(areParallel(rBackVector, aInverseForwardVector)) - { - // same direction -> C1 - eRetval = ::basegfx::vector::CONTINUITY_C1; - } + // same direction and same length -> C2 + eRetval = ::basegfx::CONTINUITY_C2; + } + else if(areParallel(rBackVector, aInverseForwardVector)) + { + // same direction -> C1 + eRetval = ::basegfx::CONTINUITY_C1; } - - return eRetval; } - } // end of namespace vector + + return eRetval; + } } // end of namespace basegfx // eof |