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c:/home/kevn/src/animaniac/ani/KeyFrame/io/KeyFramerImporter.h

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/*************** <auto-copyright.pl BEGIN do not edit this line> **************
 *
 * Animaniac is (C) Copyright 2000,2001 Kevin Meinert
 *
 * Original Authors:
 *   Kevin Meinert
 *
 *
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * -----------------------------------------------------------------
 * File:          $RCSfile: KeyFramerImporter.h,v $
 * Date modified: $Date: 2002/06/11 22:10:57 $
 * Version:       $Revision: 1.7 $
 * -----------------------------------------------------------------
 *
 *************** <auto-copyright.pl END do not edit this line> ***************/


// NOTE: for best results, read this file using an editor that supports
// color syntax highlighting.  (i.e. nedit, gvim, visual studio, visual 
// slick edit)

#include <fstream>              // for ifstream
#include <gmtl/Matrix.h>
#include <gmtl/Vec.h>
#include <gmtl/Quat.h>
#include <gmtl/Generate.h>
#include <gmtl/Math.h>

#include "ani/KeyFrame/KeyFramer.h"  // for the KeyFramer class
#include "ani/KeyFrame/PosQuatKey.h"

namespace ani
{
   class KeyFramerImporter
   {
   public:
      KeyFramerImporter()
      {
      }

      void output( ani::PosQuatKey& key )
      {
         gmtl::AxisAnglef aangle;
         gmtl::set( aangle, key.rotation() );
         std::cout<<"KEY "<<key.time()<<": "<<key.position()[0]<<", \t"<<key.position()[1]<<", \t"<<key.position()[2]<<", |#| "<<gmtl::Math::rad2Deg( aangle[0] )<<", "<<aangle[1]<<", "<<aangle[2]<<", "<<aangle[3]<<"\n"<<std::flush;
      }
   
      void execute( const char* const filename, ani::KeyFramer<PosQuatKey>& kf )
      {
         kf.clear();
         
         std::ifstream frames_file( filename, std::ios::in );
                            
         if (frames_file.bad())
         {
            std::cout << "WARNING: "
                           << "couldn't open keyframe file: " 
                           << filename <<"\n"
                           << std::flush;
            return;
         }
         
         std::cout << "Reading keyframe(s) in file: "
                <<filename<<"\n"<<std::flush;
         
         float time;
         float deg;
         gmtl::Vec3f vec;
         gmtl::Vec3f pos;
         while (!frames_file.eof())
         {
            frames_file>>time;
            
            // if EOF then return...
            if (time == -1)
            {
               std::cout<<"time==-1: "<<time<<"\n"<<std::flush;
               return;
            }
            frames_file>>pos[0]>>pos[1]>>pos[2]>>deg>>vec[0]>>vec[1]>>vec[2];
            
            // convert [TWIST, VEC] to Quat
            gmtl::Quatf rot;
            float rad = gmtl::Math::deg2Rad( deg );
            gmtl::normalize( vec );
            gmtl::set( rot, gmtl::AxisAnglef( rad, vec ) );
         
            ani::PosQuatKey key( time, pos, rot );
            kf.addkey( key );
            output( key );
         }
      }   
   };
};

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