CGAL users discussion list

[Guillaume Damiand <>]

Hi Ali;


Le 02/04/2020 à 09:08, AliiAsgharii a écrit :
> Hi all,
> I am using CGAL (Version 4.13 and 5.0.2) and I have set all the requirements
> including installing Cmake (version 3.13), Qt5 (version 5.14.2), boost
> (version 1_69 and 1_72), Visual Studio (versions 2013, 2017, 2019) and even
> QGLviewer (version 2.7.2). I set all the path into the correct ones for each
> and tried to configure and build a project using Cmake (Using the second
> method recommended by CGAL manual document). Then I build the projects
> though the visual studio and even I can run and compile some codes (the one
> do not need visualisation).
> However, when I trying to for example run code to visualise and view the
> result I am getting the following error Impossible to draw because
> CGAL_USE_BASIC_VIEWER is not defined. I surfed the Internet but I could not
> find any suitable solution for this although it seems some people have the
> same problem.
> Even I tried the first method suggested by CGAL getting started for
> installing CGAL but no luck at all.
>
> I urgently need to handle this and would be appreciated if someone can guide
> me step by step (just like explaining to a beginner of all this). FYI: I am
> using windows 10.


Have a look at one example in CGAL that use basic viewer; for example 
draw_triangulation_2 in the Triangulation_2 package [1].

In the CMakeLists.txt [2], you need:

1) find the package CGAL with the component Qt5

    find_package(CGAL COMPONENTS Qt5)

2) Set the CGAL_USE_BASIC_VIEWER compiler flag

    add_definitions(-DCGAL_USE_BASIC_VIEWER -DQT_NO_KEYWORDS)

3) Link CGAL_Qt5 with your program

    target_link_libraries(draw_triangulation_2 PUBLIC CGAL::CGAL_Qt5)


Hope this helps.

Best regards

Guillaume


[1] 
https://github.com/CGAL/cgal/blob/master/Triangulation_2/examples/Triangulation_2/draw_triangulation_2.cpp

[2] 
https://github.com/CGAL/cgal/blob/master/Triangulation_2/examples/Triangulation_2/CMakeLists.txt




> Heaps of thanks,
> Best regards,
> Ali
>
>
>
> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/

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