clover/clover_description/launch/view_drone.launch

<launch>
  <arg name="model" default="$(find clover_description)/urdf/clover/clover4.xacro"/>

  <param name="robot_description" command="xacro $(arg model)"/>

  <node name="rviz" pkg="rviz" type="rviz" required="true"/>
</launch>