g2o入门——g2o的基本使用方法

g2o全称general graph optimization，是一个用来优化非线性误差函数的c++框架。

https://blog.csdn.net/lingyunxianhe/article/details/79963131
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https://blog.csdn.net/heyijia0327/article/details/47813405
https://blog.csdn.net/KHFlash/article/details/79107860
https://blog.csdn.net/YuYunTan/article/details/85303050