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diff --git a/basegfx/source/vector/b2ivector.cxx b/basegfx/source/vector/b2ivector.cxx
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_basegfx.hxx"
+#include <basegfx/vector/b2ivector.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/numeric/ftools.hxx>
+
+namespace basegfx
+{
+ B2IVector& B2IVector::operator=( const ::basegfx::B2ITuple& rVec )
+ {
+ mnX = rVec.getX();
+ mnY = rVec.getY();
+ return *this;
+ }
+
+
+ double B2IVector::getLength() const
+ {
+ return hypot( mnX, mnY );
+ }
+
+ double B2IVector::scalar( const B2IVector& rVec ) const
+ {
+ return((mnX * rVec.mnX) + (mnY * rVec.mnY));
+ }
+
+ double B2IVector::cross( const B2IVector& rVec ) const
+ {
+ return(mnX * rVec.getY() - mnY * rVec.getX());
+ }
+
+ double B2IVector::angle( const B2IVector& rVec ) const
+ {
+ return atan2(double( mnX * rVec.getY() - mnY * rVec.getX()),
+ double( mnX * rVec.getX() + mnY * rVec.getY()));
+ }
+
+ const B2IVector& B2IVector::getEmptyVector()
+ {
+ return (const B2IVector&) ::basegfx::B2ITuple::getEmptyTuple();
+ }
+
+ B2IVector& B2IVector::operator*=( const B2DHomMatrix& rMat )
+ {
+ mnX = fround( rMat.get(0,0)*mnX +
+ rMat.get(0,1)*mnY );
+ mnY = fround( rMat.get(1,0)*mnX +
+ rMat.get(1,1)*mnY );
+
+ return *this;
+ }
+
+ B2IVector& B2IVector::setLength(double fLen)
+ {
+ double fLenNow(scalar(*this));
+
+ if(!::basegfx::fTools::equalZero(fLenNow))
+ {
+ const double fOne(10.0);
+
+ if(!::basegfx::fTools::equal(fOne, fLenNow))
+ {
+ fLen /= sqrt(fLenNow);
+ }
+
+ mnX = fround( mnX*fLen );
+ mnY = fround( mnY*fLen );
+ }
+
+ return *this;
+ }
+
+ bool areParallel( const B2IVector& rVecA, const B2IVector& rVecB )
+ {
+ double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX());
+ return ::basegfx::fTools::equalZero(fVal);
+ }
+
+ B2VectorOrientation getOrientation( const B2IVector& rVecA, const B2IVector& rVecB )
+ {
+ double fVal(rVecA.getX() * rVecB.getY() - rVecA.getY() * rVecB.getX());
+
+ if(fVal > 0.0)
+ {
+ return ORIENTATION_POSITIVE;
+ }
+
+ if(fVal < 0.0)
+ {
+ return ORIENTATION_NEGATIVE;
+ }
+
+ return ORIENTATION_NEUTRAL;
+ }
+
+ B2IVector getPerpendicular( const B2IVector& rNormalizedVec )
+ {
+ B2IVector aPerpendicular(-rNormalizedVec.getY(), rNormalizedVec.getX());
+ return aPerpendicular;
+ }
+
+ B2IVector operator*( const B2DHomMatrix& rMat, const B2IVector& rVec )
+ {
+ B2IVector aRes( rVec );
+ return aRes*=rMat;
+ }
+
+ B2VectorContinuity getContinuity(const B2IVector& rBackVector, const B2IVector& rForwardVector )
+ {
+ B2VectorContinuity eRetval(CONTINUITY_NONE);
+
+ if(!rBackVector.equalZero() && !rForwardVector.equalZero())
+ {
+ const B2IVector aInverseForwardVector(-rForwardVector.getX(), -rForwardVector.getY());
+
+ if(rBackVector == aInverseForwardVector)
+ {
+ // same direction and same length -> C2
+ eRetval = CONTINUITY_C2;
+ }
+ else if(areParallel(rBackVector, aInverseForwardVector))
+ {
+ // same direction -> C1
+ eRetval = CONTINUITY_C1;
+ }
+ }
+
+ return eRetval;
+ }
+} // end of namespace basegfx
+
+// eof
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */