CGAL users discussion list

[Felipe Bordeu <>]

Solved, my problem was the missing  "edge_size" parameter in the definition of the Mesh_criteria

Thanks,


Le 18/10/2013 15:44, Felipe Bordeu a écrit :

Thanks but...

so my mesh_domain class is

typedef CGAL::Labeled_image_mesh_domain_3<CGAL::Image_3,K> Mesh_domainImage;
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Mesh_domain_with_polyline_features_3<Mesh_domainImage>               Mesh_domain;


I used the  add_feature to add point from a polyline:

CGAL::Image_3 image;
image.read_raw("./data.raw",400,...);
Mesh_domain domain(image);
//contructoin of the polyline as in the manual//
domain.add_features(polylines.begin(), polylines.end());

but I get the following error in the make_mesh_3 call (C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria);):

terminate called after throwing an instance of 'CGAL::Precondition_exception'
  what():  CGAL ERROR: precondition violation!
Expr: sp > 0
File: /usr/include/CGAL/Mesh_3/Protect_edges_sizing_field.h
Line: 628
Abandon (core dumped)

I looked the value of sp in gdb and is strictly zero.

Felipe


Le 18/10/2013 09:58, Mariette Yvinec a écrit :

This class
CGAL::Mesh_domain_with_polyline_features_3< MeshDomain_3 >
(http://doc.cgal.org/latest/Mesh_3/classCGAL_1_1Mesh__domain__with__polyline__features__3.html)
might solve your problem.

Le 18/10/13 09:46, Felipe Bordeu a écrit :

Hello everybody,


I'm making a mesh from a 3D image (using CGAL::Image_3::read_raw and CGAL::make_mesh_3<C3t3>...) but I know somes features of this image (2 polylines).
Do you know how to add features to my mesh_domain (of type CGAL::Labeled_image_mesh_domain_3<CGAL::Image_3,CGAL::Exact_predicates_inexact_constructions_kernel> )?

I read the manual (http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Mesh_3/Chapter_main.html  ). but my mesh_domain class miss the add_features(...) member function.

Felipe

-- 
Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06

Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
-------------------------------------

-- 
Mariette Yvinec
Geometrica project team
INRIA  Sophia-Antipolis  

-- 
Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06

Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
-------------------------------------

-- 
Felipe Bordeu Weldt
Ingénieur de Recherche
-------------------------------------
Tél. : 33 (0)2 40 37 16 57
Fax. : 33 (0)2 40 74 74 06

Institut GeM - UMR CNRS 6183
École Centrale Nantes
1 Rue de La Noë, 44321 Nantes, FRANCE
-------------------------------------