| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_basegfx.hxx" |
| #include <basegfx/vector/b3dvector.hxx> |
| #include <basegfx/matrix/b3dhommatrix.hxx> |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| namespace basegfx |
| { |
| B3DVector& B3DVector::normalize() |
| { |
| double fLen(scalar(*this)); |
| |
| if(!::basegfx::fTools::equalZero(fLen)) |
| { |
| const double fOne(1.0); |
| |
| if(!::basegfx::fTools::equal(fOne, fLen)) |
| { |
| fLen = sqrt(fLen); |
| |
| if(!::basegfx::fTools::equalZero(fLen)) |
| { |
| mfX /= fLen; |
| mfY /= fLen; |
| mfZ /= fLen; |
| } |
| } |
| } |
| |
| return *this; |
| } |
| |
| B3DVector B3DVector::getPerpendicular(const B3DVector& rNormalizedVec) const |
| { |
| B3DVector aNew(*this); |
| aNew = cross(aNew, rNormalizedVec); |
| aNew.normalize(); |
| return aNew; |
| } |
| |
| B3DVector B3DVector::getProjectionOnPlane(const B3DVector& rNormalizedPlane) const |
| { |
| B3DVector aNew(*this); |
| aNew = cross(aNew, rNormalizedPlane); |
| aNew = cross(aNew, rNormalizedPlane); |
| |
| aNew.mfX = mfX - aNew.mfX; |
| aNew.mfY = mfY - aNew.mfY; |
| aNew.mfZ = mfZ - aNew.mfZ; |
| |
| return aNew; |
| } |
| |
| B3DVector& B3DVector::operator*=( const ::basegfx::B3DHomMatrix& rMat ) |
| { |
| const double fTempX( rMat.get(0,0)*mfX + rMat.get(0,1)*mfY + rMat.get(0,2)*mfZ ); |
| const double fTempY( rMat.get(1,0)*mfX + rMat.get(1,1)*mfY + rMat.get(1,2)*mfZ ); |
| const double fTempZ( rMat.get(2,0)*mfX + rMat.get(2,1)*mfY + rMat.get(2,2)*mfZ ); |
| mfX = fTempX; |
| mfY = fTempY; |
| mfZ = fTempZ; |
| |
| return *this; |
| } |
| |
| B3DVector operator*( const ::basegfx::B3DHomMatrix& rMat, const B3DVector& rVec ) |
| { |
| B3DVector aRes( rVec ); |
| return aRes*=rMat; |
| } |
| |
| bool areParallel( const B3DVector& rVecA, const B3DVector& rVecB ) |
| { |
| // i think fastest is to compare relations, need no square or division |
| if(!fTools::equal(rVecA.getX() * rVecB.getY(), rVecA.getY() * rVecB.getX())) |
| return false; |
| |
| if(!fTools::equal(rVecA.getX() * rVecB.getZ(), rVecA.getZ() * rVecB.getX())) |
| return false; |
| |
| return (fTools::equal(rVecA.getY() * rVecB.getZ(), rVecA.getZ() * rVecB.getY())); |
| } |
| |
| } // end of namespace basegfx |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| // eof |
