can not read and show a complete revolution with launch files in velodyne_pointcloud package

[wangguojun2018]

Dear:
when I use the launch file in velodyne_pointcloud to read pcap files, I can not read a complete revolution. The results in rviz is shown as following:

when I write a ros node to save pointcloud to pcd file, it is shown as following:

the following is my launch file
文字文稿1.pdf

can you tell me how to solve it, thank you very much

[JWhitleyWork]

@wangguojun2018 - Have you tried running this with the default configuration (yml) file that is provided for the 64? See if you get the same result.

[JWhitleyWork]

Also, please provide the following information:

Please complete the following information:

• OS and Version: [e.g. Ubuntu 16.04]
• ROS Version: [e.g. Kinetic]
• Built from Source or Downloaded from Official Repository:
• Version: [if from repository, give version from sudo dpkg -s ros-$ROS_VERSION-velodyne, if from source, give commit hash]