安装PCL

git clone https://github.com/PointCloudLibrary/pcl.git
cd pcl
mkdir build
cd build
cmake ..
cmake -DCMAKE_BUILD_TYPE=Release ..
make -j2
sudo make -j2 install如果你不想使用Metslib（一个例子）或者找不到它，你可以修改PCL的CMakeLists.txt文件，注释掉或删除与Metslib相关的依赖项。这通常涉及到查找和替换文件中的metslib字样。

cmake报错The CXX compiler identification is unknown

ren@ren-VirtualBox:~/Documents/pcl/build$ cmake ..
-- The CXX compiler identification is unknown
CMake Error at CMakeLists.txt:26 (project):No CMAKE_CXX_COMPILER could be found.

解决办法安装g++

sudo apt install g++

cmake报错Could not find a package configuration file provided by “Eigen3”

CMake Error at CMakeLists.txt:322 (find_package):Could not find a package configuration file provided by "Eigen3" (requestedversion 3.3) with any of the following names:Eigen3Config.cmakeeigen3-config.cmake

解决安装eigen3

sudo apt-get install libeigen3-dev

cmake还是失败直接一口气安装下面所有库

sudo apt install git cmake libboost-all-dev libeigen3-dev libflann-dev libvtk7-dev libqhull-dev