MacOS编译安装colmap_macos安装colmap

最近项目需要进行点云地图的相关处理，因此在测试机上安装了colmap。记录一下安装过程和其中的一些坑如何解决。

机型：2020 MacBookPro (M1)
系统：macOS 12.6.3

colmap官网安装手册
https://colmap.github.io/install.html#id2

1. 安装homebrew
   过程略
2. 安装依赖

brew install \
   git \
   cmake \
   boost \
   eigen \
   freeimage \
   flann \
   glog \
   gflags \
   metis \
   suite-sparse \
   ceres-solver \
   qt5 \
   glew \
   cgal \
   sqlite3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

外网下载时间较长，请耐心等待。

3. 源码编译安装colmap

git clone https://github.com/colmap/colmap.git
cd colmap
git checkout dev
mkdir build
cd build
cmake .. -DQt5_DIR=/opt/homebrew/opt/qt@5/lib/cmake/Qt5
make
sudo make install
1
2
3
4
5
6
7
8

可能遇到的问题：

1. 其中cmake后跟的DQt5_DIR，需要根据实际安装路径指定。本地安装时我修改为了：

cmake .. -DQt5_DIR=/usr/local/Cellar/qt@5/5.15.8_1/lib/cmake/Qt5
1

2. 编译时可能会报错：

CMake Error at /usr/local/lib/cmake/Qt5Core/Qt5CoreConfig.cmake:15 (message):
The imported target "Qt5::Core" references the file
"/usr/local/.//mkspecs/macx-clang"
but this file does not exist.  Possible reasons include:
* The file was deleted, renamed, or moved to another location.
* An install or uninstall procedure did not complete successfully.
* The installation package was faulty and contained
"/usr/local/lib/cmake/Qt5Core/Qt5CoreConfigExtras.cmake"
but not all the files it references.
1
2
3
4
5
6
7
8
9

查阅了github的Qt5项目，发现一个issue：
https://github.com/Homebrew/homebrew/issues/29938

vi /usr/local/lib/cmake/Qt5Core/Qt5CoreConfig.cmake
找到此处：
get_filename_component(_qt5Core_install_prefix "${CMAKE_CURRENT_LIST_DIR}/../../../" ABSOLUTE)
修改为：
get_filename_component(_qt5Core_install_prefix "${CMAKE_CURRENT_LIST_DIR}/../../../Cellar/qt@5/5.15.8_1/" ABSOLUTE)
1
2
3
4
5

再次执行cmake后报错消失。

全部安装完毕后，执行colmap gui即可图形化运行colmap。