--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/trajectorymanagement/src/ManhattanMetric.h	Mon Feb 22 22:09:35 2021 -0500
@@ -0,0 +1,57 @@
+#ifndef MANHATTANMETRIC_H_
+#define MANHATTANMETRIC_H_
+
+#include "Metric.h"
+
+#include "TrajectoryExceptions.h"
+
+/**
+ * ManhattanMetric class.
+ *
+ * The Manhattan metric measures the similarity between two trajectories.
+ */
+template<typename Tr, typename To>
+class ManhattanMetric: public Metric<Tr, To>
+{
+public:
+	/**
+	 * Compute similarity between two trajectories.
+	 *
+	 * @param[in] a input trajectory
+	 * @param[in] b input trajectory
+	 * @param[out] result distance between two trajectories
+	 */
+  void distance(const Trajectory<Tr> *a, const Trajectory<Tr> *b, To &result, unsigned int nbOfPoints = std::numeric_limits<unsigned int>::max()) 
+	{
+		result = To(0);
+
+		if (nbOfPoints == std::numeric_limits<unsigned int>::max())
+		  checkTrajectoryLength(a->size(), b->size());
+
+		To diff = To(0);
+		for (unsigned int i = 0; i < a->size() and i < nbOfPoints; ++i)
+		{
+			cv::Point3_<typeof(static_cast<Tr>(a->getPoint(i)).x)> p(a->getPoint(i) - b->getPoint(i));
+			diff += abs(p.x) + abs(p.y) + abs(p.z);
+		}
+
+		result = diff;
+	}
+
+private:
+	/**
+	 * Check the length of the trajectories.
+	 *
+	 * @param[in] a the size of the trajectory
+	 * @param[in] b the size of the trajectory
+	 */
+	void checkTrajectoryLength(size_t a, size_t b) const
+	{
+		if (a != b || a == 0)
+		{
+			throw TrajectoryLengthErrorException();
+		}
+	}
+};
+
+#endif /* MANHATTANMETRIC_H_ */