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/* ----------------------------------------------------------------------- *

 * This file is part of GEL, http://www.imm.dtu.dk/GEL

 * Copyright (C) the authors and DTU Informatics

 * For license and list of authors, see ../../doc/intro.pd

 * ----------------------------------------------------------------------- */

/** @file Mat2x2d.h

 * @brief 2x2 double matrix class

 */

#ifndef __CGLA_MAT2X2D_H__

#define __CGLA_MAT2X2D_H__

#include "Vec2d.h"

#include "ArithSqMat2x2Float.h"

namespace CGLA {

  /** \brief Two by two double matrix. 

	This class is useful for various 

	vector transformations in the plane. */

  class Mat2x2d: public ArithSqMat2x2Float<Vec2d, Mat2x2d>

    {

    public:

      /// Construct a Mat2x2d from two Vec2d vectors.

      Mat2x2d(Vec2d a, Vec2d b): ArithSqMat2x2Float<Vec2d, Mat2x2d> (a,b) {}

      /// Construct a Mat2x2f from four scalars.

      Mat2x2d(double a, double b, double c, double d): 

	ArithSqMat2x2Float<Vec2d, Mat2x2d>(Vec2d(a,b),Vec2d(c,d)) {}

      /// Construct the NAN matrix

      Mat2x2d() {}

      /// Construct a Mat2x2d from a single scalar

      explicit Mat2x2d(double a): 

	ArithSqMat2x2Float<Vec2d, Mat2x2d>(a) {}

    };

}

#endif