Moved Sfm classes to their own files

examples/SFMExampleExpressions_bal.cpp

@@ -49,7 +49,7 @@ int main(int argc, char* argv[]) {
   SfmData mydata;
   readBAL(filename, mydata);
   cout << boost::format("read %1% tracks on %2% cameras\n") %
-              mydata.number_tracks() % mydata.number_cameras();
+              mydata.nrTracks() % mydata.nrCameras();
 
   // Create a factor graph
   ExpressionFactorGraph graph;

examples/SFMExample_bal.cpp

@@ -43,7 +43,7 @@ int main (int argc, char* argv[]) {
   // Load the SfM data from file
   SfmData mydata;
   readBAL(filename, mydata);
-  cout << boost::format("read %1% tracks on %2% cameras\n") % mydata.number_tracks() % mydata.number_cameras();
+  cout << boost::format("read %1% tracks on %2% cameras\n") % mydata.nrTracks() % mydata.nrCameras();
 
   // Create a factor graph
   NonlinearFactorGraph graph;

examples/SFMExample_bal_COLAMD_METIS.cpp

@@ -48,7 +48,7 @@ int main(int argc, char* argv[]) {
   SfmData mydata;
   readBAL(filename, mydata);
   cout << boost::format("read %1% tracks on %2% cameras\n") %
-              mydata.number_tracks() % mydata.number_cameras();
+              mydata.nrTracks() % mydata.nrCameras();
 
   // Create a factor graph
   NonlinearFactorGraph graph;
@@ -131,7 +131,7 @@ int main(int argc, char* argv[]) {
 
     cout << "Time comparison by solving " << filename << " results:" << endl;
     cout << boost::format("%1% point tracks and %2% cameras\n") %
-                mydata.number_tracks() % mydata.number_cameras()
+                mydata.nrTracks() % mydata.nrCameras()
          << endl;
 
     tictoc_print_();