CGAL users discussion list

["Sebastien Loriot (GeometryFactory)" <>]

I added a comment on SO:

https://stackoverflow.com/questions/48354266/cgal-skeletonization-compile-errors

Sebastien.

On 01/19/2018 06:49 PM, mathde wrote:
> Hi,
>
> I'm new to C++ and CGAL, previously I worked mainly with C#.
> I installed CGAL as described on https://www.cgal.org/download/windows.html
> and all steps finished successfully.
> Then I looked to a CGAL 'Hello world'
> (https://doc.cgal.org/latest/Manual/Kernel_23_2points_and_segment_8cpp-example.html);
> here I had no problem also; all the code was compiled and run propertly.
> But when I tried with more complex things I got a strange issue. For example
> I tried to compile Skeletonization
> (https://doc.cgal.org/latest/Surface_mesh_skeletonization/Surface_mesh_skeletonization_2simple_mcfskel_example_8cpp-example.html);
> here I got a number of errors like these:
> C2039   'extract_mean_curvature_flow_skeleton': is not a member of 'CGAL'
> C2039   'Matrix': is not a member of 'CGAL::Default'
> C2039   'Vector': is not a member of 'CGAL::Default'    Skelet
> As far as I understand it the #include lines processed without errors, all
> needed headers exist.
>
> I tried to search the answer and found this:
> http://cgal-discuss.949826.n4.nabble.com/Problem-on-Surface-mesh-deformation-td4661042.html
> Unfortunately I don't be sure my case is similar and I don't know what
> exactly do the line #define CGAL_EIGEN3_ENABLED as recommended there. In any
> case I tried to add it and got the same errors as previous if this #define
> inserted after #include <CGAL/extract_mean_curvature_flow_skeleton.h>; in
> different case arise a lot of errors like this:
> LNK2019 unresolved external symbol __imp___gmpq_add referenced in function
> "class CGAL::Gmpq __cdecl CGAL::operator+(class CGAL::Gmpq const &,class
> CGAL::Gmpq const &)" (??HCGAL@@YA?AVGmpq@0@AEBV10@0@Z)
>
> I'm stumped and have no ideas how to fix above. Please help me to solve this
> problem and start with CGAL.
> Thanks, Oleksandr
>
>
>
> --
> Sent from: http://cgal-discuss.949826.n4.nabble.com/