Method point_index

examples/bal_problem.h:74–74

  int num_observations()       const { return num_observations_;         }
  int num_parameters()         const { return num_parameters_;           }
  const int* point_index()     const { return point_index_;              }
  const int* camera_index()    const { return camera_index_;             }
  const double* observations() const { return observations_;             }
  const double* parameters()   const { return parameters_;               }