GraphicsConstants.hpp

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#pragma ident "$Id: GraphicsConstants.hpp 1644 2009-01-27 19:26:14Z ckiesch $"


//============================================================================
//
//  This file is part of GPSTk, the GPS Toolkit.
//
//  The GPSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 2.1 of the License, or
//  any later version.
//
//  The GPSTk is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GPSTk; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Copyright 2004, The University of Texas at Austin
//
//============================================================================


#ifndef VDRAW_GRAPHIC_CONSTANTS_H
#define VDRAW_GRAPHIC_CONSTANTS_H


namespace vdraw
{

  extern const double PI;
  extern const double HALF_PI;
  extern const double TWO_PI;
  extern const double DEGREES_TO_RADIANS; 
  extern const double RADIANS_TO_DEGREES;

  extern const double PTS_PER_INCH;

  extern const double PTS_PER_CM;

  extern const double US_LETTER_WIDTH_PTS;
  extern const double US_LETTER_HEIGHT_PTS;

  // For the rest of the world... there's ISO 216-series sizes
  extern const double A3_WIDTH_PTS;
  extern const double A3_HEIGHT_PTS;

  // A4 and US customary letter are of comparable size
  extern const double A4_WIDTH_PTS;
  extern const double A4_HEIGHT_PTS;

  extern const double A5_WIDTH_PTS;
  extern const double A5_HEIGHT_PTS;


} // namespace vdraw

#endif //VDRAW_GRAPHIC_CONSTANTS_H

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