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cmake说明

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2018年12月23日 下午1:43

cmake的一些补充资料：

配置环境变量(头文件，链接库目录，宏定义)的等价方式：CMake 添加头文件目录，链接动态、静态库（添加子文件夹） - Zhang’s Wikipedia - CSDN博客

find_package (Qt5 REQUIRED COMPONENTS Widgets Core) 来历：
c++ - Ubuntu CMake what path to add to CMAKE_MODULE_PATH - Stack Overflow

TARGET_LINK_LIBRARIES (showPointCloud Qt5::Widgets)：来历
c++ - Cmake and QT5 - Include only takes one argument - Stack Overflow

要使工程可以使用Qt5的UI和信号槽机制，则需要分别包含UIC功能和MOCCLion+Qt5环境配置 - kestiny的专栏 - CSDN博客
使用CLion开发Qt应用 | 白季飞龙的个人主页

给cmake更换编译器（我们项目中只能使用clang,因为brew安装了软件软件clang编译的，gcc无法使用）
How to specify new GCC path for CMake - Stack Overflow

跨平台的cmake：
CMake与动态链接库(dll, so, dylib) - yushulx的个人页面 - 开源中国
设置open-mesh链接库
OpenMesh: How to create your own project using OpenMesh

Cmakelist.txt

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#set(CMAKE_PREFIX_PATH "/usr/local/Cellar/qt/5.12.0/lib/cmake")
#set(CMAKE_CXX_STANDARD 11)

#否则cgal会无法链接，报错：ld: symbol(s) not found for architecture x86_64
#或者，在clion中设置为release编译也可以
SET(CMAKE_BUILD_TYPE Release)

#给qt设置的选项
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTOUIC ON)
set(CMAKE_AUTORCC ON)
#否则编译的时候找不到ui_**.cpp
set(CMAKE_INCLUDE_CURRENT_DIR ON)

#find package之后，这个package会告诉cmake自己库的很多信息
#正常来说，brew install 之后就可以直接find到。安装的软件中他自己就有方便让别人使用的cmake文件夹
#其实，我们可以直接去看我们要find_package的软件，他的cmake是怎么写的，他定义了那些内容可以方便我们使用。这就是一个阅读源码的过程
find_package (PCL 1.9 REQUIRED)
find_package (Qt5 REQUIRED COMPONENTS Widgets Core) 
find_package (VTK REQUIRED)#vtk cmake路径位置：/usr/local/Cellar/vtk/8.1.2/lib/cmake/vtk-8.1
find_package (CGAL REQUIRED)

#message(STATUS "---1--" ${GMP_INCLUDE_DIRS} )
#message(STATUS "---2---" ${PCL_LIBRARY_DIRS} )
#message(STATUS "---3---" ${GMP_DEFINITIONS} )

message(STATUS "---1--" ${PCL_LIBRARY_DIRS} )

#设置包含的头文件和库目录路径
include_directories (${PCL_INCLUDE_DIRS} ${CGAL_INCLUDE_DIRS} ${GMP_INCLUDE_DIRS} "/usr/local/Cellar/open-mesh/7.1/include")
link_directories    (${PCL_LIBRARY_DIRS} ${CGAL_LIBRARY_DIRS}  ${GMP_LIBRARY_DIRS} "/usr/local/Cellar/open-mesh/7.1/lib")
add_definitions     (${PCL_DEFINITIONS} ${CGAL_DEFINITIONS} ${GMP_DEFINITIONS})

set  (project_SOURCES 
      main.cpp 
      ConstrainedDelaunayTriangulation.cpp
      ControlOptimizationSnappingDialog.cpp
      Dialog.cpp
      EarClip.cpp
      EarClip2.cpp
      HiDialog.cpp
      HoleFilling.cpp
      HoleFillingInteractiveOperationDialog.cpp
      OSnap.cpp
      PCLViewer.cpp
      PlaneDetectSetParamDialog.cpp
      RegulateNormalDialog.cpp
      RemovePointCloudDialog.cpp
      SetBGColorDialog.cpp
      SetParams_Mergingvertices_Dialog.cpp
      SetParams_SimpilyVerticessize_Dialog.cpp
      SetPointCloudProDialog.cpp
      SimplifyVerticesSize.cpp
      snappingvertices.cpp)
set  (project_HEADERS 
      Commen.h
      ConstrainedDelaunayTriangulation.h
      ControlOptimizationSnappingDialog.h
      Dialog.h
      EarClip.h
      EarClip2.h
      Event.h
      HeaderFile.h
      HiDialog.h
      HoleFilling_PLY.h
      HoleFilling.h
      HoleFillingInteractiveOperationDialog.h
      initialPoly.h
      OSnap.h
      PCLViewer.h
      PlaneDetect.h
      PlaneDetectSetParamDialog.h
      Registration.h
      RegulateNormalDialog.h
      RemovePointCloudDialog.h
      SetBGColorDialog.h
      SetParams_Mergingvertices_Dialog.h
      SetParams_SimpilyVerticessize_Dialog.h
      SetPointCloudProDialog.h
      SimplifyVerticesSize.h
      snappingvertices.h
      TriangularMeshing.h)
set  (project_FORMS
      ControlOptimizationSnappingDialog.ui
      Dialog.ui
      HiDialog.ui
      HoleFillingInteractiveOperationDialog.ui
      PCLViewer.ui
      PlaneDetectSetParamDialog.ui
      RegulateNormalDialog.ui
      RemovePointCloudDialog.ui
      SetBGColorDialog.ui
      SetParams_Mergingvertices_Dialog.ui
      SetParams_SimpilyVerticessize_Dialog.ui
      SetPointCloudProDialog.ui)

#我这里偷了个懒，在链接的过程中，我直接将所有的依赖库全部加进来了，这样最起码不会少！
#set  (VTK_LIBRARIES vtkRenderingCore vtkGraphics vtkHybrid QVTK )#依赖库路径位置：/usr/local/Cellar/vtk/8.1.2/lib/cmake/vtk-8.1
#set  (GMP_LIBRARIES libgmp-10 libmpfr-4)
#set  (CGAL_LIBRARIES CGAL_Core-vc100-mt-4.7 CGAL_Core-vc100-mt-gd-4.7 CGAL-vc100-mt-4.7 CGAL-vc100-mt-gd-4.7)


QT5_WRAP_CPP (project_HEADERS_MOC   ${project_HEADERS})
QT5_WRAP_UI  (project_FORMS_HEADERS ${project_FORMS})

ADD_DEFINITIONS (${QT_DEFINITIONS})

ADD_EXECUTABLE  (showPointCloud ${project_SOURCES}
                                ${project_FORMS_HEADERS}
                                ${project_HEADERS_MOC})

#对应于软件link的过程
TARGET_LINK_LIBRARIES (showPointCloud ${PCL_LIBRARIES} ${VTK_LIBRARIES} ${CGAL_LIBRARIES} ${GMP_LIBRARIES})
TARGET_LINK_LIBRARIES (showPointCloud Qt5::Widgets)
TARGET_LINK_LIBRARIES (showPointCloud OpenMeshCore)
TARGET_LINK_LIBRARIES (showPointCloud OpenMeshTools)