CGAL users discussion list

[mathde <>]

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



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