fix Labeled_mesh_domain_3 doc and add missing backward compatibility functions

Mesh_3/doc/Mesh_3/Doxyfile.in

@@ -36,3 +36,7 @@ HTML_EXTRA_FILES           =  ${CGAL_PACKAGE_DOC_DIR}/fig/implicit_domain_3.jpg
                               ${CGAL_PACKAGE_DOC_DIR}/fig/no-protection-complex.png
 
 EXAMPLE_PATH += ${CGAL_PACKAGE_INCLUDE_DIR} # non-documented headers are advertised
+
+EXTRACT_ALL                =  NO
+HIDE_UNDOC_MEMBERS         =  YES
+HIDE_UNDOC_CLASSES         =  YES

Mesh_3/examples/Mesh_3/mesh_hybrid_mesh_domain.cpp

@@ -214,9 +214,8 @@ int main()
   // - the second argument is a bounding sphere of the domain
   // (Warning: Sphere_3 constructor uses square radius !)
   Implicit_domain sphere_domain =
-    Implicit_domain::create_implicit_mesh_domain(function = sphere_centered_at_111,
-                                                 bounding_object = K::Sphere_3(K::Point_3(1, 1, 1),
-                                                                               2.));
+    Implicit_domain::create_implicit_mesh_domain(sphere_centered_at_111,
+                                                 K::Sphere_3(K::Point_3(1, 1, 1), 2.));
 
   Domain domain(sphere_domain, polyhedron_domain);
 

Mesh_3/examples/Mesh_3/mesh_implicit_domains.cpp

@@ -49,7 +49,8 @@ int main()
   v.push_back(f2);
 
   // Domain (Warning: Sphere_3 constructor uses square radius !)
-  Mesh_domain domain(Function_wrapper(v), K::Sphere_3(CGAL::ORIGIN, 5.*5.), 1e-6);
+  Mesh_domain domain(Function_wrapper(v), K::Sphere_3(CGAL::ORIGIN, 5.*5.),
+                     CGAL::parameters::relative_error_bound(1e-6));
 
   // Set mesh criteria
   Facet_criteria facet_criteria(30, 0.2, 0.02); // angle, size, approximation

Mesh_3/examples/Mesh_3/mesh_implicit_domains_2.cpp

@@ -12,8 +12,6 @@
 // IO
 #include <CGAL/IO/File_medit.h>
 
-using namespace CGAL::parameters;
-
 // Domain
 typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
 typedef FT_to_point_function_wrapper<K::FT, K::Point_3> Function;
@@ -46,11 +44,10 @@ int main()
   vps.push_back("+-");
 
   /// [Domain creation] (Warning: Sphere_3 constructor uses square radius !)
-  namespace param = CGAL::parameters;
-  Mesh_domain domain(param::function = Function_wrapper(v, vps),
-                     param::bounding_object = K::Sphere_3(CGAL::ORIGIN,
-                                                          5.*5.),
-                     param::relative_error_bound = 1e-6);
+  namespace params = CGAL::parameters;
+  Mesh_domain domain(Function_wrapper(v, vps),
+                     K::Sphere_3(CGAL::ORIGIN,5.*5.),
+                     params::relative_error_bound = 1e-6);
   /// [Domain creation]
 
   // Set mesh criteria
@@ -59,10 +56,10 @@ int main()
   Mesh_criteria criteria(facet_criteria, cell_criteria);
 
   // Mesh generation
-  C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria, no_exude(), no_perturb());
+  C3t3 c3t3 = CGAL::make_mesh_3<C3t3>(domain, criteria, params::no_exude(), params::no_perturb());
 
   // Perturbation (maximum cpu time: 10s, targeted dihedral angle: default)
-  CGAL::perturb_mesh_3(c3t3, domain, time_limit = 10);
+  CGAL::perturb_mesh_3(c3t3, domain, params::time_limit = 10);
 
   // Exudation
   CGAL::exude_mesh_3(c3t3,12);

Mesh_3/examples/Mesh_3/mesh_implicit_sphere.cpp

@@ -39,8 +39,8 @@ int main()
 {
   /// [Domain creation] (Warning: Sphere_3 constructor uses squared radius !)
   Mesh_domain domain =
-    Mesh_domain::create_implicit_mesh_domain( function = sphere_function,
-                                              bounding_object = K::Sphere_3(CGAL::ORIGIN, 2.));
+    Mesh_domain::create_implicit_mesh_domain( sphere_function,
+                                              K::Sphere_3(CGAL::ORIGIN, 2.));
   /// [Domain creation]
 
   // Mesh criteria

Mesh_3/examples/Mesh_3/mesh_implicit_sphere_variable_size.cpp

@@ -54,8 +54,7 @@ int main()
   /// [Domain creation] (Warning: Sphere_3 constructor uses squared radius !)
   namespace p = CGAL::parameters;
   Mesh_domain domain = Mesh_domain::create_implicit_mesh_domain
-    (p::function = &sphere_function,
-     p::bounding_object = K::Sphere_3(CGAL::ORIGIN, 2.)
+    (sphere_function, K::Sphere_3(CGAL::ORIGIN, 2.)
      );
   /// [Domain creation]
 

Mesh_3/examples/Mesh_3/mesh_two_implicit_spheres_with_balls.cpp

@@ -61,8 +61,8 @@ int main()
 {
   // Domain (Warning: Sphere_3 constructor uses squared radius !)
   Mesh_domain domain =
-    Mesh_domain::create_implicit_mesh_domain(function = sphere_function,
-                                             bounding_object = K::Sphere_3(Point(1, 0, 0), 6.));
+    Mesh_domain::create_implicit_mesh_domain(sphere_function,
+                                             K::Sphere_3(Point(1, 0, 0), 6.));
 
   // Mesh criteria
   Mesh_criteria criteria(edge_size = 0.15,