ExampleProjection.cpp

/* 
This file is part of the BIAS library (Basic ImageAlgorithmS).

Copyright (C) 2003-2009    (see file CONTACT for details)
  Multimediale Systeme der Informationsverarbeitung
  Institut fuer Informatik
  Christian-Albrechts-Universitaet Kiel


BIAS 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
(at your option) any later version.

BIAS 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 BIAS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/**
   @example ExampleProjection.cpp
   @relates Projection 
   @brief Example Projection
   @ingroup g_examples
   @author MIP
*/
#include <Geometry/Projection.hh>
#include <Geometry/ProjectionParametersSpherical.hh>
#include <iostream>

using namespace BIAS;
using namespace std;

int main (int argc, char* argv[])
{
  Projection proj1, proj2;
#ifdef BIAS_HAVE_XML2
  if (argc<2) {
    cout <<"no file given, terminating!"<<endl;
    exit(0);
  }
  else {
    if (proj1.XMLRead(argv[1])<0) {
      if (proj1.ReadFromCamParamFile(argv[1])<0) {
        cout << "Error reading file:" << argv[1] << endl;
        exit(0);
      }
    }
    cout << "Read file:" << argv[1] << endl;
  }
  
  cout <<"Projection is: "<<proj1<<endl;
  ProjectionParametersSpherical *pps =
    dynamic_cast<ProjectionParametersSpherical *> (proj1.GetParameters());

  if (pps!=NULL) {
    KMatrix K1, K2, K3;
    double imgsize1,imgsize2, imgsize3;
    K1 = pps->GetFakeKMatrix(imgsize1,0);
    K2 = pps->GetFakeKMatrix(imgsize2,1);
    K3 = pps->GetFakeKMatrix(imgsize3,2);
    cout << "KMatNormal:" << imgsize1 << "x" << imgsize1 << K1 << endl;
    cout << "KMatBig:" <<    imgsize2 << "x" << imgsize1 << K2 << endl;
    cout << "KMatSmall:" <<  imgsize3 << "x" << imgsize1 << K3 << endl;

    for (int i=0; i<6; i++) {
      ProjectionParametersPerspective pp;
      Vector3<double> rpt(1.0,
                          -M_PI*double(i)*M_PI/3.0,
                          i*pps->GetMaxCamAngle()/6);
      cout << "Creating perspective cutout  " << i << " with center:" 
           <<  pps->ProjectLocal(rpt.CoordSphereToEuclidean()) << endl;
      pps->GetPerspectiveCutOutParameters(pps->ProjectLocal(rpt.CoordSphereToEuclidean()), 25, pp);
      Projection p(pp);
      stringstream ss;
      ss << "PerspectiveCutOut" << i << ".xml";
      p.XMLWrite(ss.str().c_str());
      cout << "wrote  " <<  ss.str().c_str() << endl;
      
    }
  }

  string flat;
  proj1.XMLWriteToString(flat);
  cout <<"My Projection flat as string: "<<flat<<endl;
  proj1.XMLReadFromString(flat);
  proj1.XMLWrite("PassedThroughString.xml");
  

  cout <<"Externals: "<<proj1.GetParameters()->GetExternals()<<endl;
  HomgPoint3D p3d;
  HomgPoint2D p2d;

  p3d[0] = 10.0;  p3d[1] = 11.0;  p3d[2] = -10.0;  p3d[3] = 1.0;

  p2d = proj1.Project(p3d);
  cout <<p3d<<"  -> "<<p2d<<endl;

  proj1.XMLWrite("CamDataTest.xml");
  cout <<"CamDataTest.xml created" << endl;

  proj2.XMLRead("CamDataTest.xml");
  proj2.XMLWrite("CamDataTestRewrite.xml");
  cout <<"CamDataTestRewrite.xml created" << endl;


  


#endif
  return 0;  
}