b2ivector.cxx

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 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#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;
    }
 
    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(1.0);
 
            if(!::basegfx::fTools::equal(fOne, fLenNow))
            {
                fLen /= sqrt(fLenNow);
            }
 
            mnX = fround( mnX*fLen );
            mnY = fround( mnY*fLen );
        }
 
        return *this;
    }
 
} // end of namespace basegfx
 
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