how to change the orientation of the vertical setted vlp 16

[himhan34]

Please complete the following information:

• OS and Version: ubuntu 18.04
• ROS Version: melodic
• Built from Source or Downloaded from Official Repository:
• nope Describe the bug A clear and concise description of what the bug is.

As the people had done in this git hub, i could operate the two lidars in the same, fixed frame. https://github.com/ros-drivers/velodyne/issues/108 unfortunately, one of my vlp-16 is horizontal and the other is vertical,

this picture is the the pointcloud from the vertical lidar,

this is a picture from the horizontal lidar

and when i displayed both lidars in the same rviz

this is shown,

is there any method to change orientation of the vertical lidar.

and also my launch file is like this

<!-- VLP-16 front -->
<include file="$(find velodyne_pointcloud)/launch/VLP16_points.launch">
  <arg name="calibration" value="$(arg velodyne_calib)"/>
  <arg name="device_ip" value="192.168.1.201"/>
  <arg name="frame_id" value="vlp201"/>
  <arg name="port" value="2368"/>
</include>