Adding the Trajectory and trajectoryPoint messages (#296)

Signed-off-by: SteveMacenski <[email protected]>
Signed-off-by: Steve Macenski <[email protected]>
Co-authored-by: Tully Foote <[email protected]>

Author: SteveMacenski

nav_msgs/CMakeLists.txt

@@ -24,6 +24,8 @@ set(msg_files
   "msg/OccupancyGrid.msg"
   "msg/Odometry.msg"
   "msg/Path.msg"
+  "msg/Trajectory.msg"
+  "msg/TrajectoryPoint.msg"
 )
 set(srv_files
   "srv/GetMap.srv"

nav_msgs/README.md

@@ -12,6 +12,8 @@ For more information about ROS 2 interfaces, see [docs.ros.org](https://docs.ros
 * [OccupancyGrid](msg/OccupancyGrid.msg): Represents a 2-D grid map, in which each cell represents the probability of occupancy.
 * [Odometry](msg/Odometry.msg): This represents an estimate of a position and velocity in free space.
 * [Path](msg/Path.msg): An array of poses that represents a Path for a robot to follow.
+* [Trajectory](msg/Trajectory.msg): A representation of a trajectory as a series of time-stamped trajectory points.
+* [TrajectoryPoint](msg/TrajectoryPoint.msg): A single point in a trajectory.
 
 ## Services (.srv)
 * [GetMap](srv/GetMap.srv): Get the map as a nav_msgs/OccupancyGrid.

nav_msgs/msg/Trajectory.msg

@@ -0,0 +1,7 @@
+# An array of trajectory points that represents a trajectory for a robot to follow.
+
+# Indicates the frame_id in which the planner ran and timestamp represents when the trajectory was generated.
+std_msgs/Header header
+
+# Array of trajectory points to follow.
+TrajectoryPoint[] points

nav_msgs/msg/TrajectoryPoint.msg

@@ -0,0 +1,16 @@
+# Trajectory point state
+
+# Absolute time and frame of reference of the point along a trajectory
+std_msgs/Header header
+
+# Pose of the trajectory sample.
+geometry_msgs/Pose pose
+
+# Velocity of the trajectory sample.
+geometry_msgs/Twist velocity
+
+# Acceleration of the trajectory (optional, linear.x component is NaN if not set).
+geometry_msgs/Accel acceleration
+
+# Force/Torque to apply at trajectory sample (optional, force.x component is NaN if not set).
+geometry_msgs/Wrench effort