git_ws/rbx1/rbx1_apps/launch/follower2.launch

<launch>
  <node pkg="nodelet" type="nodelet" name="pcl_manager" args="manager" output="screen" />

  <!-- Run a VoxelGrid filter on the z axis -->
  <node pkg="nodelet" type="nodelet" name="voxel_grid_z" args="load pcl/VoxelGrid pcl_manager" output="screen">
    <remap from="~input" to="/camera/depth_registered/points" />
    <remap from="~output" to="/z_filtered" />
    <rosparam>
      filter_field_name: z
      filter_limit_min: 0.3
      filter_limit_max: 1.6
      filter_limit_negative: False
      leaf_size: 0.02
    </rosparam>
  </node>
  
  <!-- Run a passthrough filter on the x axis -->
  <node pkg="nodelet" type="nodelet" name="passthrough_x" args="load pcl/PassThrough pcl_manager" output="screen">
    <remap from="~input" to="/z_filtered" />
    <remap from="~output" to="/x_filtered" />
    <rosparam>
      filter_field_name: x
      filter_limit_min: -0.3
      filter_limit_max: 0.3
      filter_limit_negative: False
    </rosparam>
  </node>
  
  <!-- Run a passthrough filter on the y axis -->
  <node pkg="nodelet" type="nodelet" name="passthrough_y" args="load pcl/PassThrough pcl_manager" output="screen">
    <remap from="~input" to="/x_filtered" />
    <remap from="~output" to="/search_cloud" />
    <rosparam>
      filter_field_name: y
      filter_limit_min: -0.5
      filter_limit_max: -0.1
      filter_limit_negative: False
    </rosparam>
  </node>
  
  <node pkg="rbx1_apps" name="follower" type="follower2.py" output="screen">
    <remap from="point_cloud" to="search_cloud" />
    
    <rosparam>
       goal_z: 0.8
       z_threshold: 0.025
       x_threshold: 0.025
       z_scale: 1.0
       x_scale: 3.0
       max_angular_speed: 5.0
       min_angular_speed: 0.1
       max_linear_speed: 0.4
       min_linear_speed: 0.05
    </rosparam>
    
  </node>
</launch>