/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

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 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/.

 *

 * This file incorporates work covered by the following license notice:

 *

 *   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 .

 */

#include <Linear3DTransformation.hxx>

using namespace ::com::sun::star;

using ::com::sun::star::uno::Sequence;

namespace chart

{

    Linear3DTransformation::Linear3DTransformation( const drawing::HomogenMatrix& rHomMatrix, bool bSwapXAndY )

    : m_Matrix(rHomMatrix)

    , m_bSwapXAndY(bSwapXAndY)

{}

Linear3DTransformation::~Linear3DTransformation()

{}

// ____ XTransformation2 ____

css::drawing::Position3D Linear3DTransformation::transform(

                        const Sequence< double >& rSourceValues ) const

{

    double fX = rSourceValues[0];

    double fY = rSourceValues[1];

    double fZ = rSourceValues[2];

    if(m_bSwapXAndY)

        std::swap(fX,fY);

    css::drawing::Position3D aNewVec;

    double fZwi;

    fZwi = m_Matrix.Line1.Column1 * fX

         + m_Matrix.Line1.Column2 * fY

         + m_Matrix.Line1.Column3 * fZ

         + m_Matrix.Line1.Column4;

    aNewVec.PositionX = fZwi;

    fZwi = m_Matrix.Line2.Column1 * fX

         + m_Matrix.Line2.Column2 * fY

         + m_Matrix.Line2.Column3 * fZ

         + m_Matrix.Line2.Column4;

    aNewVec.PositionY = fZwi;

    fZwi = m_Matrix.Line3.Column1 * fX

         + m_Matrix.Line3.Column2 * fY

         + m_Matrix.Line3.Column3 * fZ

         + m_Matrix.Line3.Column4;

    aNewVec.PositionZ = fZwi;

    fZwi = m_Matrix.Line4.Column1 * fX

         + m_Matrix.Line4.Column2 * fY

         + m_Matrix.Line4.Column3 * fZ

         + m_Matrix.Line4.Column4;

    if(fZwi != 1.0 && fZwi != 0.0)

    {

        aNewVec.PositionX /= fZwi;

        aNewVec.PositionY /= fZwi;

        aNewVec.PositionZ /= fZwi;

    }

    return aNewVec;

}

css::drawing::Position3D Linear3DTransformation::transform(

                        const css::drawing::Position3D& rSourceValues ) const

{

    double fX = rSourceValues.PositionX;

    double fY = rSourceValues.PositionY;

    double fZ = rSourceValues.PositionZ;

    if(m_bSwapXAndY)

        std::swap(fX,fY);

    css::drawing::Position3D aNewVec;

    double fZwi;

    fZwi = m_Matrix.Line1.Column1 * fX

         + m_Matrix.Line1.Column2 * fY

         + m_Matrix.Line1.Column3 * fZ

         + m_Matrix.Line1.Column4;

    aNewVec.PositionX = fZwi;

    fZwi = m_Matrix.Line2.Column1 * fX

         + m_Matrix.Line2.Column2 * fY

         + m_Matrix.Line2.Column3 * fZ

         + m_Matrix.Line2.Column4;

    aNewVec.PositionY = fZwi;

    fZwi = m_Matrix.Line3.Column1 * fX

         + m_Matrix.Line3.Column2 * fY

         + m_Matrix.Line3.Column3 * fZ

         + m_Matrix.Line3.Column4;

    aNewVec.PositionZ = fZwi;

    fZwi = m_Matrix.Line4.Column1 * fX

         + m_Matrix.Line4.Column2 * fY

         + m_Matrix.Line4.Column3 * fZ

         + m_Matrix.Line4.Column4;

    if(fZwi != 1.0 && fZwi != 0.0)

    {

        aNewVec.PositionX /= fZwi;

        aNewVec.PositionY /= fZwi;

        aNewVec.PositionZ /= fZwi;

    }

    return aNewVec;

}

}  // namespace chart

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