Vibrating point cloud in rviz.

edit

The problem was that both /gazebo and /robot_state_publisher were publishing /tf and my callback for /tf subscribing node looked like this

def transformCallback(self, msg):
    self.transform = msg.transforms[0]
    self.compute_new_pcl()

This is how looks /tf from /gazebo

transforms: 
  - 
    header: 
      seq: 0
      stamp: 
        secs: 1842
        nsecs: 696000000
      frame_id: "odom"
    child_frame_id: "chassis"
    transform: 
      translation: 
        x: 0.150801946695
        y: -0.766858491599
        z: 0.100001299784
      rotation: 
        x: 2.87981408951e-06
        y: -3.24224228361e-06
        z: 0.691690448705
        w: 0.722194103515

/robot_state_publisher publishes also other transformations like from the chassis to the wheel and that's the reason that it has fixed values which caused vibrations. When you subscribe a topic from python a node which has 2 publishers, once it loads from /gazebo and other time from /robot_state_publisher so I've updated /tf callback a little bit

    if (msg.transforms[0].header.frame_id == 'odom' and 
        msg.transforms[0].child_frame_id=='chassis'):
        self.transform = msg.transforms[0]
        self.compute_new_pcl()

The bigger vibrations are now smaller than earlier but still it is showing some noise and displacement.I thinkdo_transform_cloud(self.point_cloud, self.transform) makes this kind of noise or maybe the need of two values from two subscribed nodes ?

Blue is laser scan and red is transformed point cloud.