Ackermann10

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获取groundtruth真实位姿

![question1](https://user-images.githubusercontent.com/95529973/188268782-e72a1c2d-8109-4929-a53b-46f125af93a5.png) ![question](https://user-images.githubusercontent.com/95529973/188268786-de6afd43-12fe-4dfb-8479-05f75bae4e02.png)

获取groundtruth真实位姿

能提供一下引用的链接吗？

running problem

Did you solve this problem? I met the same error.

trajectory_generator crashes

Did you solve this problem?