AOO410/main/basegfx/source/point/b2dhompoint.cxx

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * 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
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_basegfx.hxx"
#include <basegfx/point/b2dhompoint.hxx>
#include <basegfx/matrix/b2dhommatrix.hxx>
#include <basegfx/numeric/ftools.hxx>

namespace basegfx
{
	void B2DHomPoint::implHomogenize()
	{
		const double fFactor(1.0 / mfW);
		maTuple.setX(maTuple.getX() * fFactor);
		maTuple.setY(maTuple.getY() * fFactor);
		mfW = 1.0;
	}

	B2DHomPoint& B2DHomPoint::operator*=( const B2DHomMatrix& rMat )
	{
		const double fTempX( rMat.get(0,0)*maTuple.getX() +
							rMat.get(0,1)*maTuple.getY() +
							rMat.get(0,2)*mfW );

		const double fTempY( rMat.get(1,0)*maTuple.getX() +
							rMat.get(1,1)*maTuple.getY() +
							rMat.get(1,2)*mfW );

		const double fTempZ( rMat.get(2,0)*maTuple.getX() +
							rMat.get(2,1)*maTuple.getY() +
							rMat.get(2,2)*mfW );
		maTuple.setX( fTempX );
		maTuple.setY( fTempY );
		mfW = fTempZ;

		return *this;
	}
} // end of namespace basegfx

// eof