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Hi, I give you my cmakefiles for my apllication using opencv openscenegraph plplot. I don't know if it's a good example but it works for me : VS2012 32 and 64 bits and linux mint 

find_package(OpenSceneGraph  3.2.1 REQUIRED osgDB osgUtil osgGA osgViewer osgText osgSim)
find_package(OpenCV  REQUIRED)
find_package(wxWidgets COMPONENTS core base net adv aui html  qa richtext stc ribbon xml gl REQUIRED)
find_package(PLplot  REQUIRED)

cmake_minimum_required(VERSION 2.8)

PROJECT (wxOpenCVMain)

set (wxOpenCV_VERSION_MAJOR 0)
set (wxOpenCV_VERSION_MINOR 0)

file(GLOB wxOpenCVMain_SRCS
    "*.h"
    "*.cpp"
    toolbar.rc)
ADD_EXECUTABLE (wxOpenCVMain ${wxOpenCVMain_SRCS})

configure_file (
    "${PROJECT_SOURCE_DIR}/wxOpenCVConfig.h.in"
    "${PROJECT_SOURCE_DIR}/wxOpenCVConfig.h"
    )

if (wxWidgets_FOUND)
    include_directories(${wxWidgets_INCLUDE_DIRS})
    target_link_libraries (wxOpenCVMain ${wxWidgets_LIBRARIES} )
endif (wxWidgets_FOUND)
if (OPENSCENEGRAPH_FOUND)
    include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS})
    target_link_libraries (wxOpenCVMain ${OPENSCENEGRAPH_LIBRARIES} )

endif (OPENSCENEGRAPH_FOUND)
message("OPENCV = ${OpenCV_INCLUDE_DIRS}")
if (OpenCV_FOUND)
    include_directories( ${OpenCV_INCLUDE_DIRS} )
#   include_directories("${OPENCV_CONFIG_PATH}/include")
    target_link_libraries( wxOpenCVMain ${OpenCV_LIBS} )
else (OpenCV_FOUND)
message("PB->OPENCV = ${OpenCV_INCLUDE_DIRS}")
endif (OpenCV_FOUND)
if (PLplot_FOUND)
    include_directories(${PLplot_INCLUDE_DIR})
    target_link_libraries (wxOpenCVMain ${PLplot_wxwidgets_LIBRARY} ${PLplot_cxx_LIBRARY} )
endif (PLplot_FOUND)

IF(WIN32) # Check if we are on Windows
    message( STATUS         "WINDOWS")
    if(MSVC) # Check if we are using the Visual Studio compiler
        set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "")
    message( STATUS         "${WX_LIB_DIR}")
        IF(WX_LIB_DIR MATCHES ".*[dD][lL][lL].*")
            SET(wxWidgets_DEFINITIONS WXUSINGDLL)
            DBG_MSG_V("detected SHARED/DLL tree WX_LIB_DIR=${WX_LIB_DIR}")
        ENDIF(WX_LIB_DIR MATCHES ".*[dD][lL][lL].*")

        if  (CMAKE_CL_64)
            set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "${wxWidgets_DEFINITIONS};__WXMSW__;_CRT_SECURE_NO_WARNINGS")
        else()
            set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "${wxWidgets_DEFINITIONS};__WXMSW__;_CRT_SECURE_NO_WARNINGS")
        endif()
        set_target_properties(wxOpenCVMain PROPERTIES LINK_FLAGS_DEBUG "/FORCE:MULTIPLE /SUBSYSTEM:WINDOWS")
        set_target_properties(wxOpenCVMain PROPERTIES LINK_FLAGS_RELEASE  "/SUBSYSTEM:WINDOWS /FORCE:MULTIPLE")     
    else()
        if (NOT CMAKE_COMPILER_IS_GNUCXX)
            message (SEND_ERROR  "You are using an unsupported Windows compiler! (Not MSVC or GCC)")
        endif()
    endif()
else()
    if(UNIX)
        set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "__WXGTK__")
    else()
        message ("You are on an unsupported platform! (Not Win32 or Unix)")
    endif()
endif()

Hi, I give you my cmakefiles for my apllication using opencv openscenegraph plplot. I don't know if it's a good example but it works for me : VS2012 32 and 64 bits and linux mint 

find_package(OpenSceneGraph  3.2.1 REQUIRED osgDB osgUtil osgGA osgViewer osgText osgSim)
find_package(OpenCV  REQUIRED)
find_package(wxWidgets COMPONENTS core base net adv aui html  qa richtext stc ribbon xml gl REQUIRED)
find_package(PLplot  REQUIRED)

cmake_minimum_required(VERSION 2.8)

PROJECT (wxOpenCVMain)

set (wxOpenCV_VERSION_MAJOR 0)
set (wxOpenCV_VERSION_MINOR 0)

file(GLOB wxOpenCVMain_SRCS
    "*.h"
    "*.cpp"
    toolbar.rc)
ADD_EXECUTABLE (wxOpenCVMain ${wxOpenCVMain_SRCS})

configure_file (
    "${PROJECT_SOURCE_DIR}/wxOpenCVConfig.h.in"
    "${PROJECT_SOURCE_DIR}/wxOpenCVConfig.h"
    )

if (wxWidgets_FOUND)
    include_directories(${wxWidgets_INCLUDE_DIRS})
    target_link_libraries (wxOpenCVMain ${wxWidgets_LIBRARIES} )
endif (wxWidgets_FOUND)
if (OPENSCENEGRAPH_FOUND)
    include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS})
    target_link_libraries (wxOpenCVMain ${OPENSCENEGRAPH_LIBRARIES} )

endif (OPENSCENEGRAPH_FOUND)
message("OPENCV = ${OpenCV_INCLUDE_DIRS}")
if (OpenCV_FOUND)
    include_directories( ${OpenCV_INCLUDE_DIRS} )
#   include_directories("${OPENCV_CONFIG_PATH}/include")
    target_link_libraries( wxOpenCVMain ${OpenCV_LIBS} )
else (OpenCV_FOUND)
message("PB->OPENCV = ${OpenCV_INCLUDE_DIRS}")
endif (OpenCV_FOUND)
if (PLplot_FOUND)
    include_directories(${PLplot_INCLUDE_DIR})
    target_link_libraries (wxOpenCVMain ${PLplot_wxwidgets_LIBRARY} ${PLplot_cxx_LIBRARY} )
endif (PLplot_FOUND)

IF(WIN32) # Check if we are on Windows
    message( STATUS         "WINDOWS")
    if(MSVC) # Check if we are using the Visual Studio compiler
        set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "")
    message( STATUS         "${WX_LIB_DIR}")
        IF(WX_LIB_DIR MATCHES ".*[dD][lL][lL].*")
            SET(wxWidgets_DEFINITIONS WXUSINGDLL)
            DBG_MSG_V("detected SHARED/DLL tree WX_LIB_DIR=${WX_LIB_DIR}")
        ENDIF(WX_LIB_DIR MATCHES ".*[dD][lL][lL].*")

        if  (CMAKE_CL_64)
            set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "${wxWidgets_DEFINITIONS};__WXMSW__;_CRT_SECURE_NO_WARNINGS")
        else()
            set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "${wxWidgets_DEFINITIONS};__WXMSW__;_CRT_SECURE_NO_WARNINGS")
        endif()
        set_target_properties(wxOpenCVMain PROPERTIES LINK_FLAGS_DEBUG "/FORCE:MULTIPLE /SUBSYSTEM:WINDOWS")
        set_target_properties(wxOpenCVMain PROPERTIES LINK_FLAGS_RELEASE  "/SUBSYSTEM:WINDOWS /FORCE:MULTIPLE")     
    else()
        if (NOT CMAKE_COMPILER_IS_GNUCXX)
            message (SEND_ERROR  "You are using an unsupported Windows compiler! (Not MSVC or GCC)")
        endif()
    endif()
else()
    if(UNIX)
        set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "__WXGTK__")
    else()
        message ("You are on an unsupported platform! (Not Win32 or Unix)")
    endif()
endif()

If you want to include a library which is not known by CMAKE you have to look in share\cmake-3.0\Modules. Example CMake does not know LibreOfficeSDK I have write this line in CmakeList.txt set(LOSDK $ENV{LibreOfficeSDK})

FIND_PATH( LOSDK_INCLUDE_DIR NAMES main.h PATHS /usr/local/include /usr/include ${LOSDK}/include/sal )

Again I'm not a specialist of Cmake may be you should ask you question on cmake Forum

Hi, I give you my cmakefiles for my apllication using opencv openscenegraph plplot. I don't know if it's a good example but it works for me : VS2012 32 and 64 bits and linux mint 

find_package(OpenSceneGraph  3.2.1 REQUIRED osgDB osgUtil osgGA osgViewer osgText osgSim)
find_package(OpenCV  REQUIRED)
find_package(wxWidgets COMPONENTS core base net adv aui html  qa richtext stc ribbon xml gl REQUIRED)
find_package(PLplot  REQUIRED)

cmake_minimum_required(VERSION 2.8)

PROJECT (wxOpenCVMain)

set (wxOpenCV_VERSION_MAJOR 0)
set (wxOpenCV_VERSION_MINOR 0)

file(GLOB wxOpenCVMain_SRCS
    "*.h"
    "*.cpp"
    toolbar.rc)
ADD_EXECUTABLE (wxOpenCVMain ${wxOpenCVMain_SRCS})

configure_file (
    "${PROJECT_SOURCE_DIR}/wxOpenCVConfig.h.in"
    "${PROJECT_SOURCE_DIR}/wxOpenCVConfig.h"
    )

if (wxWidgets_FOUND)
    include_directories(${wxWidgets_INCLUDE_DIRS})
    target_link_libraries (wxOpenCVMain ${wxWidgets_LIBRARIES} )
endif (wxWidgets_FOUND)
if (OPENSCENEGRAPH_FOUND)
    include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS})
    target_link_libraries (wxOpenCVMain ${OPENSCENEGRAPH_LIBRARIES} )

endif (OPENSCENEGRAPH_FOUND)
message("OPENCV = ${OpenCV_INCLUDE_DIRS}")
if (OpenCV_FOUND)
    include_directories( ${OpenCV_INCLUDE_DIRS} )
#   include_directories("${OPENCV_CONFIG_PATH}/include")
    target_link_libraries( wxOpenCVMain ${OpenCV_LIBS} )
else (OpenCV_FOUND)
message("PB->OPENCV = ${OpenCV_INCLUDE_DIRS}")
endif (OpenCV_FOUND)
if (PLplot_FOUND)
    include_directories(${PLplot_INCLUDE_DIR})
    target_link_libraries (wxOpenCVMain ${PLplot_wxwidgets_LIBRARY} ${PLplot_cxx_LIBRARY} )
endif (PLplot_FOUND)

IF(WIN32) # Check if we are on Windows
    message( STATUS         "WINDOWS")
    if(MSVC) # Check if we are using the Visual Studio compiler
        set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "")
    message( STATUS         "${WX_LIB_DIR}")
        IF(WX_LIB_DIR MATCHES ".*[dD][lL][lL].*")
            SET(wxWidgets_DEFINITIONS WXUSINGDLL)
            DBG_MSG_V("detected SHARED/DLL tree WX_LIB_DIR=${WX_LIB_DIR}")
        ENDIF(WX_LIB_DIR MATCHES ".*[dD][lL][lL].*")

        if  (CMAKE_CL_64)
            set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "${wxWidgets_DEFINITIONS};__WXMSW__;_CRT_SECURE_NO_WARNINGS")
        else()
            set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "${wxWidgets_DEFINITIONS};__WXMSW__;_CRT_SECURE_NO_WARNINGS")
        endif()
        set_target_properties(wxOpenCVMain PROPERTIES LINK_FLAGS_DEBUG "/FORCE:MULTIPLE /SUBSYSTEM:WINDOWS")
        set_target_properties(wxOpenCVMain PROPERTIES LINK_FLAGS_RELEASE  "/SUBSYSTEM:WINDOWS /FORCE:MULTIPLE")     
    else()
        if (NOT CMAKE_COMPILER_IS_GNUCXX)
            message (SEND_ERROR  "You are using an unsupported Windows compiler! (Not MSVC or GCC)")
        endif()
    endif()
else()
    if(UNIX)
        set_target_properties(wxOpenCVMain PROPERTIES  COMPILE_DEFINITIONS "__WXGTK__")
    else()
        message ("You are on an unsupported platform! (Not Win32 or Unix)")
    endif()
endif()

If you want to include a library which is not known by CMAKE you have to look in share\cmake-3.0\Modules. Example CMake does not know LibreOfficeSDK I have write this line in CmakeList.txt CmakeList.txt

set(LOSDK $ENV{LibreOfficeSDK})
 
$ENV{LibreOfficeSDK})

FIND_PATH(
  LOSDK_INCLUDE_DIR
  NAMES main.h 
  PATHS /usr/local/include /usr/include  ${LOSDK}/include/sal
)
)

Again I'm not a specialist of Cmake may be you should ask you question on cmake Forum

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