Known Issues and fix

Eigen

• Bugs about invoke_result: build/include/eigen3/Eigen/src/Core/util/Meta.h:617:25: error: ‘invoke_result’ in namespace ‘std’ does not name a template type

  • This is a bug caused by not compiling with c++17. However, although the CMAKE_CXX_STANDARD flag is 17 in the CMakeList.txt, the bug still exists. The probable solution is to comment these lines in the head files, e.g., when compiling, change the code from

    #if EIGEN_HAS_STD_INVOKE_RESULT
    template<typename F, typename... ArgTypes>
    struct invoke_result {
       typedef typename std::invoke_result<F, ArgTypes...>::type type1;
       typedef typename remove_all<type1>::type type;
     };
     #elif EIGEN_HAS_CXX11
     template<typename F, typename... ArgTypes>
     struct invoke_result {
       typedef typename result_of<F(ArgTypes...)>::type type1;
       typedef typename remove_all<type1>::type type;
     };
     #else
     template<typename F, typename ArgType0 = void, typename ArgType1 = void, typename ArgType2 = void>
     struct invoke_result {
       typedef typename result_of<F(ArgType0, ArgType1, ArgType2)>::type type1;
       typedef typename remove_all<type1>::type type;
     };
    

    to

    /*#if EIGEN_HAS_STD_INVOKE_RESULT
    template<typename F, typename... ArgTypes>
    struct invoke_result {
       typedef typename std::invoke_result<F, ArgTypes...>::type type1;
       typedef typename remove_all<type1>::type type;
     };*/
     #if EIGEN_HAS_CXX11
     template<typename F, typename... ArgTypes>
     struct invoke_result {
       typedef typename result_of<F(ArgTypes...)>::type type1;
       typedef typename remove_all<type1>::type type;
     };
     #else
     template<typename F, typename ArgType0 = void, typename ArgType1 = void, typename ArgType2 = void>
     struct invoke_result {
       typedef typename result_of<F(ArgType0, ArgType1, ArgType2)>::type type1;
       typedef typename remove_all<type1>::type type;
     };
    

    You can do the same thing in other files when this bug emerges.

• If the bugs related to Eigen3 still exist, it may be a good idea to compile Eigen from source.

Freetype2

• Bugs about freetype2 (I guess it may be caused by HarfBuzz), the error may emerge as: SceneGraphFusion/build/external/FreeType2/src/autofit/afscript.h:35:11: error: ‘HB_SCRIPT_ADLAM’ undeclared here (not in a function) and SceneGraphFusion/build/external/FreeType2/src/autofit/afscript.h:278:11: error: ‘HB_SCRIPT_OSAGE’ undeclared here (not in a function)

  • The temporary solution is to find out the associated lines in these head files and comment them. Another head file is afstyle.h.

3RScan.json and objects.json

• When running the executable file, you should put the 3RScan.json and objects.json(from 3DSSG) under the correct directory. E.g., if the --pth_in is scans/sequence_idxxxx/sequence/, you should put these two files under scans/

Acknowledgement

The issues and fixed are provided by Kenneth-Wong