#include <Eigen/Dense> no working if used in View3DInventorViewer.cpp

[nyholku]

Hi,

I'm experimenting with View3DInventorViewer and would like to use eigen there.

I see that

Code: Select all

FreeCAD-git/src/Mod/Sketcher/App/planegcs/qp_eq.h

includes eigen like this

Code: Select all

#include <Eigen/Dense>

but when I do that in

Code: Select all

FreeCAD-git/src/Gui/View3DInventorViewer.cpp

I get:

Code: Select all

/Users/nyholku/FreeCAD/FreeCAD-git/src/Gui/View3DInventorViewer.cpp:2822:10: fatal error: 'Eigen/Dense' file not found

I've verified that 'qp_eq.h' gets compiled and so I know the include works there
but I'm at loss why it does not work in 'View3DInventorViewer.cpp'

[nyholku]

Ok found the solution:


In file:

Code: Select all

FreeCAD-git/src/Gui/CMakeLists.txt

I need to include (pun intenede) eigen3 in the include_directories:

Code: Select all

include_directories(
    ${EIGEN3_INCLUDE_DIR}
    ${CMAKE_BINARY_DIR}

Pretty basic if you understand FreeCAD build structure and CMake

Sorry about the noise.

wbr Kusti