Transform PointCloud2 doesn't work as expected

edit

I tried to transform my pointcloud2 in python like stated here.

But somehow the result is not correct. I am not able to visualize the pointcloud I get as a result in rviz. This is why I tried to just use an empty transformation on my pointcloud and I get some different cloud as a result. Does anyone know what I am doing wrong?

Thanks!

from tf2_sensor_msgs.tf2_sensor_msgs import do_transform_cloud

def transform_pointcloud(self, pointcloud):
    trans = TransformStamped()
    trans.header.stamp = pointcloud.header.stamp
    trans.header.frame_id = pointcloud.header.frame_id
    trans.header.seq = pointcloud.header.seq
    trans.child_frame_id = "corner"
    trans.transform.translation.x = 0
    trans.transform.translation.y = 0
    trans.transform.translation.z = 0
    trans.transform.rotation.x = 0
    trans.transform.rotation.y = 0
    trans.transform.rotation.z = 0
    trans.transform.rotation.w = 0

    newpointcloud = do_transform_cloud(pointcloud, trans)
    return newpointcloud