ubuntu18.04安装g2o

先对g2o的依赖库进行安装：

sudo apt-get update
sudo apt-get install libeigen3-dev
sudo apt-get install libsuitesparse-dev
sudo apt-get install qtdeclarative5-dev
sudo apt-get install qt5-qmake
sudo apt-get install libqglviewer-dev-qt5

然后下载g2o(2020那个版本)

地址：https://github.com/RainerKuemmerle/g2o/tree/20200410_git

然后在解压后的g2o文件目录下输入：

mkdir build
cd build
sudo ldconfig
cmake ..
make j2

CMakeLists.txt引用g2o：

LIST( APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake_modules ) 
SET( G2O_ROOT /usr/local/include/g2o ) 
find_package(G2O REQUIRED)
include_directories(${G2O_INCLUDE_DIRS})
add_executable(g2oCurveFitting g2oCurveFitting.cpp)
target_link_libraries(g2oCurveFitting g2o_core g2o_stuff ${OpenCV_LIBS})

之后编译时出现下面问题

Please set them or make sure they are set and tested correctly in the CMake files: G2O_INCLUDE_DIRS    

used as include directory in directory /home/xj/slambook2-master/ch6    

used as include directory in directory /home/xj/slambook2-master/ch6    

used as include directory in directory /home/xj/slambook2-master/ch6

是因为cmake_modules写成了cmake_module
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版权声明：本文为CSDN博主「壹609」的原创文章，遵循CC 4.0 BY-SA版权协议，转载请附上原文出处链接及本声明。
原文链接：https://blog.csdn.net/weixin_66001915/article/details/131127507

其它链接：Ubuntu16.04安装视觉SLAM环境（g2o）