This is a nice helper library made to be used with the rviz_satellite RVIZ plugin. This will take the first GPS reading given and set that as its datum. It will then publish a path object with the ENU position for each future GPS measurements. This was made for simple viewing of where a vehicle is during data collection. To run, make sure you have installed the rviz_satellite plugin in your ROS workspace, and then launch the program using the included launch file.