#ifndef WEDGE_HPP
#define WEDGE_HPP
//
// $Id: Wedge.hpp,v 1.10 1998/11/04 22:56:55 hobbs Exp $
//
// File: Wedge.hpp
// Purpose: 
// Created: 22-NOV-1997   Emanuela Barberis
//
// $Revision: 1.10 $
//
//

// Include files
#include <geometry_system/components/GeometryElement.hpp>

#ifndef MATRIX_H
class MatrixD;
#endif

namespace dgs {
#ifndef CARTESIANCOORDINATE_HH
class CartesianCoordinate;
#endif
#ifndef CARTESIANMATRIX_HPP
class CartesianMatrix;
#endif

/**  A Wedge.

     A wedge.

*/
class Wedge: public GeometryElement
{
public:

  /// Default constructor.
  Wedge (): _halfwidth1(0.0), _halfwidth2(0.0), _halfheight(0.0),
    _cvers("$Revision: 1.10 $") {}

  ///  Construct wedge with specified half-widths and half-height.
  Wedge(const double halfwidth1, const double halfwidth2, const double halfheight): 
       _halfwidth1(halfwidth1), 
       _halfwidth2(halfwidth2),
       _halfheight(halfheight), _cvers("$Revision: 1.10 $")
     {}

  ///  Convert local point to global one.
  virtual SpacePoint local_to_global(const CartesianCoordinate& lpt) const;

  ///  Convert local point to global one.
  virtual MatrixD local_to_global(const CartesianMatrix& theMatrix) const;

  ///  Convert global point to local one.
  virtual CartesianCoordinate global_to_local(const SpacePoint& gpt) const;

  ///  Resize a wedge with specified changes to half-widths and half-height.
  bool resize(const double dhalfwidth1, const double dhalfwidth2, const double dhalfheight);

  ///  Position child surface at specified local point.
  bool position_child_at(const CartesianCoordinate& lpt, GeometryElement& kid);

  /// The GeometryElement interface (will be a dummy - never any kids)
  const std::list<GeometryElement*> get_children();


  ///  Get half-width 1.
  double get_hw1size() const { return _halfwidth1; }

  ///  Get half-width 2.
  double get_hw2size() const { return _halfwidth2; }

  ///  Get half-height.
  double get_hhsize()  const { return _halfheight; }

  /// Get source code version. Kept to allow following code changes
  const std::string& code_version() const { return _cvers; }

  ///  Stream insertion operator.
  friend std::ostream& operator<<(std::ostream& os, const Wedge& me);

private:

  ///  Half-width 1.
  double _halfwidth1;

  ///  Half-width 2.
  double _halfwidth2;

  ///  Half-height.
  double _halfheight;

  /// Support for positioning children.
  CartesianCoordinate xform_to_local(const GeometryXform& xf) const;

  /// Support for positioning children.
  GeometryXform local_to_xform(const CartesianCoordinate& lpt) const;

  /// RCS version
  std::string _cvers;  // Replaced at checkout

public:

  D0_OBJECT_SETUP(Wedge);

};
}
#endif //WEDGE_HPP