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SphereEarthView.h

/*
 * gaia - opensource 3D interface to the planet
 * Copyright (C) 2006 gaia project
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef __GAIA__SPHEREEARTHVIEW_H__
#define __GAIA__SPHEREEARTHVIEW_H__

#include "Viewpoint.h"
#include "MasterLayer.h"
#include "PreloadedTextureManager.h"
#include "EarthView.h"

/**
 * Flat representation of Earth.
 *
 * Simplest possible earth representation. Orthogonal projection, pitch
 * cannot be changed and north is always 'up'.
 */
00034 class SphereEarthView: public EarthView {
public:
      /**
       * Constructor.
       */
      SphereEarthView(MasterLayer *ml);

      /**
       * Destructor.
       */
      virtual ~SphereEarthView();

      /**
       * Render one frame.
       */
      void Render();

      /**
       * Animate view.
       * 
       * @param delta time since last frame
       */
      void Animate(double delta);

      int StartMovement(int flags);
      int StopMovement(int flags);
      int SingleMovement(int flags);

private:
      /**
       * Fix eye coordinates after movements
       */
      void NormalizeEye();

protected:
      int   m_CurrentMovementFlags;
};

#endif

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