--- a/include/Feature.hpp	Wed Aug 17 19:03:25 2011 -0400
+++ b/include/Feature.hpp	Wed Aug 17 22:26:01 2011 -0400
@@ -5,6 +5,8 @@
 
 #include <boost/shared_ptr.hpp>
 
+template<typename T> class TrajectoryDBAccess;
+
 /** Class for feature data
     positions, velocities and other statistics to evaluate their quality
     before saving. */
@@ -12,8 +14,12 @@
 public:
   FeatureTrajectory(const int& frameNum, const cv::Point2f& p);
 
+  void setId(const unsigned int& id) { positions.setId(id);velocities.setId(id);}
+
   void addPoint(const int& frameNum, const cv::Point2f& p);
 
+  void write(TrajectoryDBAccess<cv::Point2f>& trajectoryDB) const;
+
 #ifdef USE_OPENCV
   void draw(cv::Mat& img, const cv::Scalar& color) const;
 #endif