sudo apt-get install ros-$ROS_DISTRO-grid-map
roslaunch grid_map_demos simple_demo.launch
export PATH="/home/tk/Documents/eigen-3.4.0/:$PATH"
cd ~/Desktop/catkin_workspace/src/
git clone git@github.com:anybotics/kindr.git
catkin build -w ~/Desktop/catkin_workspace/ kindr
cd ~/Desktop/catkin_workspace/src/
git clone https://github.com/ANYbotics/kindr_ros.git
catkin build kindr_ros
cd ~/Desktop/catkin_workspace/src/
git clone https://github.com/ANYbotics/message_logger.git
mkdir ~/Desktop/catkin_workspace/
mkdir src/
cd src/
git clone https://github.com/ANYbotics/elevation_mapping.git
cd ..
catkin init
catkin config --cmake-args -DCMAKE_BUILD_TYPE=Release
sudo apt install ros-noetic-turtlebot3*
roslaunch elevation_mapping_demos turtlesim3_waffle_demo.launch
it might not be able to find the launch file. In this case, clean the build and do
catkin build elevation_mapping_demos
to force it build and generate the install folder.