Hello!
I do $ cd CGAL-4.9 $ cmake -DWITH_examples=ON -DWITH_demos=ON -DCGAL_DIR=$HOME/CGAL-4.9/ . and see .... -- Configuring examples in examples/BGL_OpenMesh -- Requested component: MPFR -- Requested component: GMP -- Boost version: 1.62.0 -- Examples that use OpenMesh will not be compiled. What does this output mean? and what I need to do to compile examples? Thank you very much!! P.S. is it suitable place for such help requests? |
Le Tuesday, February 7, 2017 7:27:08 PM CET Ivan Io a écrit :
> full output <https://paste.debian.net/hidden/d39d567e/> > .... > -- Configuring examples in examples/BGL_OpenMesh > -- Requested component: MPFR > -- Requested component: GMP > -- Boost version: 1.62.0 > -- Examples that use OpenMesh will not be compiled. > > What does this output mean? and what I need to do to compile examples? Hi, Some of the examples in the BGL package shows that CGAL algorithms can be used on OpenMesh data structures. If your system does not have OpenMesh, of course those examples cannot be compiled. But that is no big deal: all the other examples that do not use OpenMesh are configured and can be compiled. > P.S. is it suitable place for such help requests? Yes, that is the right place. Let's hope I gave you a satisfying answer, and you will go on and continue using CGAL. -- Laurent Rineau, PhD R&D Engineer at GeometryFactory http://www.geometryfactory.com/ Release Manager of the CGAL Project http://www.cgal.org/ -- You are currently subscribed to cgal-discuss. To unsubscribe or access the archives, go to https://sympa.inria.fr/sympa/info/cgal-discuss |
Hi Laurent! Could you recomend any post link about cgal and about how to calculate intersection of 3 planes. In my case I have normal vector of plane and centroide. I need to know the know how of cgal to calculate this point I know mathematics to calculate it but I would like to get this point with cgal. Thanks and best regards 2017-02-08 10:44 GMT+01:00 Laurent Rineau (CGAL/GeometryFactory) <[hidden email]>: Le Tuesday, February 7, 2017 7:27:08 PM CET Ivan Io a écrit : Iván Otero González Skype: ivanoterouvigo Tlf. Lab. 222: 813499 Tlf. Lab. 218: 813998 Research Line : ARCHITECTURE AND BUILDING GeoTech Applied Geotechnologies Research Group | Geotech Universidade de Vigo E.E. Minas 36310 Vigo (Spain) |
Le Thursday, February 9, 2017 4:40:13 PM CET Iván otero a écrit :
> Hi Laurent! > > Could you recomend any post link about cgal and about how to calculate > intersection of 3 planes. > In my case I have normal vector of plane and centroide. > > I need to know the know how of cgal to calculate this point > I know mathematics to calculate it but I would like to get this point with > cgal. There is a constructor of a `CGAL::Plane_3<K>` from a point and a vector: http://doc.cgal.org/latest/Kernel_23/classCGAL_1_1Plane__3.html Plane_3 (const Point_3< Kernel > &p, const Vector_3< Kernel > &v) introduces a plane h that passes through point p and that is orthogonal to v. And then you will have to use the intersection function: http://doc.cgal.org/latest/Kernel_23/group__intersection__linear__grp.html The intersection of the two first `Plane_3<K>` will gives you a `Line_3<K>`, unless the plans are parallel. Then the intersection of the resulting `Line_3<K>` with the third `Plane_3<K>` should give you a `Point_3<K>`, unless the line is parallel to the plane. -- Laurent Rineau, PhD R&D Engineer at GeometryFactory http://www.geometryfactory.com/ Release Manager of the CGAL Project http://www.cgal.org/ -- You are currently subscribed to cgal-discuss. To unsubscribe or access the archives, go to https://sympa.inria.fr/sympa/info/cgal-discuss |
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