本文整理汇总了C++中cdt::Face_handle类的典型用法代码示例。如果您正苦于以下问题：C++ Face_handle类的具体用法？C++ Face_handle怎么用？C++ Face_handle使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了Face_handle类的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1:
CDT::Face_handle TriFanBuilder::GetNextRemainingTriangle(void)
{
if (queue.empty()) return NULL;
TriFan_t * f = queue.begin()->second;
#if DEV
if (f->faces.size() != 1)
printf("ASSERT FAILED, REMAINING TRI CALLED ON A TRI FAN!!\n");
#endif
queue.erase(queue.begin());
CDT::Face_handle ff = f->faces.front();
delete f;
#if DEV
if (!ff->info().flag)
printf("ERROR - this face was already used once.\n");
#endif
ff->info().flag = false;
// OOPS! We have to nuke all remaining triangles from the queue!!
for (TriFanQueue::iterator n = queue.begin(); n != queue.end(); )
{
if (n->second->faces.front() == ff)
{
TriFanQueue::iterator kill = n;
++n;
queue.erase(kill);
} else
++n;
}
return ff;
}
开发者ID:highattack30，项目名称:xptools，代码行数:30，代码来源:TriFan.cpp
示例2: GetNextRemainingTriangle
void TriFanBuilder::GetRemainingTriangles(list<CDT::Vertex_handle>& out_handles)
{
out_handles.clear();
CDT::Face_handle f;
while(1)
{
f = GetNextRemainingTriangle();
if(f == NULL)
break;
for (int v = 2; v >= 0; --v)
{
out_handles.push_back(f->vertex(v));
}
}
}
开发者ID:highattack30，项目名称:xptools，代码行数:15，代码来源:TriFan.cpp
示例3: number_of_existing_edge
int number_of_existing_edge(CDT::Face_handle fh)
{
unsigned res=0;
for (int i=0; i<3; ++i)
if (fh->info().exist_edge[i]) ++res;
return res;
}
开发者ID:BijanZarif，项目名称:mshr，代码行数:7，代码来源:linear_cell_complex_3_triangulation.cpp
示例4: e
void
mark_domains(CDT& ct,
CDT::Face_handle start,
int index,
std::list<CDT::Edge>& border )
{
if(start->info().nesting_level != -1){
return;
}
std::list<CDT::Face_handle> queue;
queue.push_back(start);
while(! queue.empty()){
CDT::Face_handle fh = queue.front();
queue.pop_front();
if(fh->info().nesting_level == -1){
fh->info().nesting_level = index;
for(int i = 0; i < 3; i++){
CDT::Edge e(fh,i);
CDT::Face_handle n = fh->neighbor(i);
if(n->info().nesting_level == -1){
if(ct.is_constrained(e)) border.push_back(e);
else queue.push_back(n);
}
}
}
}
}
开发者ID:Asuzer，项目名称:cgal，代码行数:28，代码来源:polygon_triangulation.cpp
示例5: while
//explore set of facets connected with non constrained edges,
//and attribute to each such set a nesting level.
//We start from facets incident to the infinite vertex, with a nesting
//level of 0. Then we recursively consider the non-explored facets incident
//to constrained edges bounding the former set and increase the nesting level by 1.
//Facets in the domain are those with an odd nesting level.
void
mark_domains(CDT& cdt)
{
for(CDT::All_faces_iterator it = cdt.all_faces_begin(); it != cdt.all_faces_end(); ++it){
it->info().nesting_level = -1;
}
std::list<CDT::Edge> border;
mark_domains(cdt, cdt.infinite_face(), 0, border);
while(! border.empty()){
CDT::Edge e = border.front();
border.pop_front();
CDT::Face_handle n = e.first->neighbor(e.second);
if(n->info().nesting_level == -1){
mark_domains(cdt, n, e.first->info().nesting_level+1, border);
}
}
}
开发者ID:Asuzer，项目名称:cgal，代码行数:24，代码来源:polygon_triangulation.cpp
示例6: get_free_edge
int get_free_edge(CDT::Face_handle fh)
{
CGAL_assertion( number_of_existing_edge(fh)==2 );
for (int i=0; i<3; ++i)
if (!fh->info().exist_edge[i]) return i;
CGAL_assertion(false);
return -1;
}
开发者ID:BijanZarif，项目名称:mshr，代码行数:9，代码来源:linear_cell_complex_3_triangulation.cpp
示例7: triangulate_facet
void Viewer::triangulate_facet()
{
pos_facets.resize(0);
flat_normals.resize(0);
smooth_normals.resize(0);
colors.resize(0);
LCC &lcc = *scene->lcc;
for (LCC::Attribute_range<3>::type::iterator
it=lcc.attributes<3>().begin(),
itend=lcc.attributes<3>().end(); it!=itend; ++it )
{
if ( it->info().is_visible() )
{
for(LCC::One_dart_per_incident_cell_range<2,3>::iterator
dartIter=lcc.one_dart_per_incident_cell<2,3>
(lcc.dart_of_attribute<3>(it)).begin(); dartIter.cont(); ++dartIter)
{
//Computes the normal of the facet
Traits::Vector_3 normal = CGAL::compute_normal_of_cell_2(lcc,dartIter);
normal = normal/(CGAL::sqrt(normal*normal));
P_traits cdt_traits(normal);
CDT cdt(cdt_traits);
LCC::Dart_of_orbit_range<1>::const_iterator
he_circ = lcc.darts_of_orbit<1>(dartIter).begin(),
he_circ_end = lcc.darts_of_orbit<1>(dartIter).end();
// Iterates on the vector of facet handles
CDT::Vertex_handle previous, first;
do {
CDT::Vertex_handle vh = cdt.insert(lcc.point(he_circ));
if(first == 0) {
first = vh;
}
//vh->info() = he_circ;
if(previous != 0 && previous != vh) {
cdt.insert_constraint(previous, vh);
}
previous = vh;
} while( ++he_circ != he_circ_end );
cdt.insert_constraint(previous, first);
// sets mark is_external
for(CDT::All_faces_iterator
fit = cdt.all_faces_begin(),
end = cdt.all_faces_end();
fit != end; ++fit)
{
fit->info().is_external = false;
}
//check if the facet is external or internal
std::queue<CDT::Face_handle> face_queue;
face_queue.push(cdt.infinite_vertex()->face());
while(! face_queue.empty() ) {
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
if(fh->info().is_external) continue;
fh->info().is_external = true;
for(int i = 0; i <3; ++i) {
if(!cdt.is_constrained(std::make_pair(fh, i)))
{
face_queue.push(fh->neighbor(i));
}
}
}
//iterates on the internal faces to add the vertices to the positions
//and the normals to the appropriate vectors
for(CDT::Finite_faces_iterator
ffit = cdt.finite_faces_begin(),
end = cdt.finite_faces_end();
ffit != end; ++ffit)
{
if(ffit->info().is_external)
continue;
//compute normals (no smooth for non-triangle facets objects
LCC::Vector normal = CGAL::compute_normal_of_cell_2(lcc,dartIter);
normal = normal/(CGAL::sqrt(normal*normal));
smooth_normals.push_back(normal.x());smooth_normals.push_back(normal.y());smooth_normals.push_back(normal.z());
smooth_normals.push_back(normal.x());smooth_normals.push_back(normal.y());smooth_normals.push_back(normal.z());
smooth_normals.push_back(normal.x());smooth_normals.push_back(normal.y());smooth_normals.push_back(normal.z());
flat_normals.push_back(normal.x());flat_normals.push_back(normal.y());flat_normals.push_back(normal.z());
flat_normals.push_back(normal.x());flat_normals.push_back(normal.y());flat_normals.push_back(normal.z());
flat_normals.push_back(normal.x());flat_normals.push_back(normal.y());flat_normals.push_back(normal.z());
pos_facets.push_back(ffit->vertex(0)->point().x()); pos_facets.push_back(ffit->vertex(0)->point().y()); pos_facets.push_back(ffit->vertex(0)->point().z());
pos_facets.push_back(ffit->vertex(1)->point().x()); pos_facets.push_back(ffit->vertex(1)->point().y()); pos_facets.push_back(ffit->vertex(1)->point().z());
pos_facets.push_back(ffit->vertex(2)->point().x()); pos_facets.push_back(ffit->vertex(2)->point().y()); pos_facets.push_back(ffit->vertex(2)->point().z());
//.........这里部分代码省略.........
开发者ID:somanypeople，项目名称:cgal，代码行数:101，代码来源:Viewer.cpp
示例8: compute_normals_and_vertices
void Scene_nef_polyhedron_item::compute_normals_and_vertices(void)
{
int count = 0;
positions_facets.resize(0);
positions_points.resize(0);
color_lines.resize(0);
color_facets.resize(0);
color_points.resize(0);
normals.resize(0);
positions_lines.resize(0);
//The Facets
{
for(Nef_polyhedron::Halffacet_const_iterator
f = nef_poly->halffacets_begin (),
end = nef_poly->halffacets_end();
f != end; ++f)
{
if(f->is_twin()) continue;
count++;
Nef_polyhedron::Vector_3 v = f->plane().orthogonal_vector();
P_traits cdt_traits(v);
CDT cdt(cdt_traits);
for(Nef_polyhedron::Halffacet_cycle_const_iterator
fc = f->facet_cycles_begin(),
end = f->facet_cycles_end();
fc != end; ++fc)
{
if ( fc.is_shalfedge() )
{
Nef_polyhedron::SHalfedge_const_handle h = fc;
Nef_polyhedron::SHalfedge_around_facet_const_circulator hc(h), he(hc);
CDT::Vertex_handle previous, first;
do {
Nef_polyhedron::SVertex_const_handle v = hc->source();
const Nef_polyhedron::Point_3& point = v->source()->point();
CDT::Vertex_handle vh = cdt.insert(point);
if(first == 0) {
first = vh;
}
vh->info() = hc->source();
if(previous != 0 && previous != vh) {
cdt.insert_constraint(previous, vh);
}
previous = vh;
} while( ++hc != he );
cdt.insert_constraint(previous, first);
// sets mark is_external
for(CDT::All_faces_iterator
fit = cdt.all_faces_begin(),
end = cdt.all_faces_end();
fit != end; ++fit)
{
fit->info().is_external = false;
}
//check if the facet is external or internal
std::queue<CDT::Face_handle> face_queue;
face_queue.push(cdt.infinite_vertex()->face());
while(! face_queue.empty() ) {
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
if(fh->info().is_external) continue;
fh->info().is_external = true;
for(int i = 0; i <3; ++i) {
if(!cdt.is_constrained(std::make_pair(fh, i)))
{
face_queue.push(fh->neighbor(i));
}
}
}
//iterates on the internal faces to add the vertices to the positions
//and the normals to the appropriate vectors
for(CDT::Finite_faces_iterator
ffit = cdt.finite_faces_begin(),
end = cdt.finite_faces_end();
ffit != end; ++ffit)
{
if(ffit->info().is_external){ continue;}
for(int i = 0; i<3; i++)
{
positions_facets.push_back(CGAL::to_double(ffit->vertex(i)->point().x()));
positions_facets.push_back(CGAL::to_double(ffit->vertex(i)->point().y()));
positions_facets.push_back(CGAL::to_double(ffit->vertex(i)->point().z()));
}
Nef_polyhedron::Vector_3 v = f->plane().orthogonal_vector();
//.........这里部分代码省略.........
开发者ID:haozzzzzzzz，项目名称:cgal，代码行数:101，代码来源:Scene_nef_polyhedron_item.cpp
示例9: cdt_traits
void
Scene_polyhedron_item::triangulate_facet_color(Facet_iterator fit) const
{
Traits::Vector_3 normal =
CGAL::Polygon_mesh_processing::compute_face_normal(fit, *poly);
//check if normal contains NaN values
if (normal.x() != normal.x() || normal.y() != normal.y() || normal.z() != normal.z())
{
qDebug()<<"Warning : normal is not valid. Facet not displayed";
return;
}
P_traits cdt_traits(normal);
CDT cdt(cdt_traits);
Facet::Halfedge_around_facet_circulator
he_circ = fit->facet_begin(),
he_circ_end(he_circ);
// Iterates on the vector of facet handles
CDT::Vertex_handle previous, first;
do {
CDT::Vertex_handle vh = cdt.insert(he_circ->vertex()->point());
if(first == 0) {
first = vh;
}
vh->info() = he_circ;
if(previous != 0 && previous != vh) {
cdt.insert_constraint(previous, vh);
}
previous = vh;
} while( ++he_circ != he_circ_end );
cdt.insert_constraint(previous, first);
// sets mark is_external
for(CDT::All_faces_iterator
afit = cdt.all_faces_begin(),
end = cdt.all_faces_end();
afit != end; ++afit)
{
afit->info().is_external = false;
}
//check if the facet is external or internal
std::queue<CDT::Face_handle> face_queue;
face_queue.push(cdt.infinite_vertex()->face());
while(! face_queue.empty() ) {
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
if(fh->info().is_external) continue;
fh->info().is_external = true;
for(int i = 0; i <3; ++i) {
if(!cdt.is_constrained(std::make_pair(fh, i)))
{
face_queue.push(fh->neighbor(i));
}
}
}
//iterates on the internal faces to add the vertices to the positions vector
for(CDT::Finite_faces_iterator
ffit = cdt.finite_faces_begin(),
end = cdt.finite_faces_end();
ffit != end; ++ffit)
{
if(ffit->info().is_external)
continue;
//Add Colors
for(int i = 0; i<3; ++i)
{
const int this_patch_id = fit->patch_id();
color_facets.push_back(colors_[this_patch_id].redF());
color_facets.push_back(colors_[this_patch_id].greenF());
color_facets.push_back(colors_[this_patch_id].blueF());
color_facets.push_back(colors_[this_patch_id].redF());
color_facets.push_back(colors_[this_patch_id].greenF());
color_facets.push_back(colors_[this_patch_id].blueF());
}
}
}
开发者ID:kriolog，项目名称:cgal，代码行数:80，代码来源:Scene_polyhedron_item.cpp
示例10: compute_face
void Viewer::compute_face(Dart_handle dh, LCC::size_type markface)
{
LCC &lcc = *scene->lcc;
CGAL::mark_cell<LCC, 2>(lcc, dh, markface);
double r = (double)lcc.info<3>(dh).color().r()/255.0;
double g = (double)lcc.info<3>(dh).color().g()/255.0;
double b = (double)lcc.info<3>(dh).color().b()/255.0;
if ( !lcc.is_free(dh, 3) )
{
r += (double)lcc.info<3>(lcc.beta(dh,3)).color().r()/255.0;
g += (double)lcc.info<3>(lcc.beta(dh,3)).color().g()/255.0;
b += (double)lcc.info<3>(lcc.beta(dh,3)).color().b()/255.0;
r /= 2; g /= 2; b /= 2;
}
//compute flat normals
LCC::Vector normal = CGAL::compute_normal_of_cell_2(lcc,dh);
normal = normal/(CGAL::sqrt(normal*normal));
if (lcc.beta<1,1,1>(dh)!=dh)
{
P_traits cdt_traits(normal);
CDT cdt(cdt_traits);
// Iterates on the vector of facet handles
CDT::Vertex_handle previous = NULL, first = NULL;
for (LCC::Dart_of_orbit_range<1>::const_iterator
he_circ = lcc.darts_of_orbit<1>(dh).begin(),
he_circ_end = lcc.darts_of_orbit<1>(dh).end();
he_circ!=he_circ_end; ++he_circ)
{
CDT::Vertex_handle vh = cdt.insert(lcc.point(he_circ));
if(first == NULL)
{ first = vh; }
vh->info().v = CGAL::compute_normal_of_cell_0<LCC>(lcc, he_circ);
if(previous!=NULL && previous != vh)
{ cdt.insert_constraint(previous, vh); }
previous = vh;
}
if (previous!=NULL)
cdt.insert_constraint(previous, first);
// sets mark is_external
for(CDT::All_faces_iterator fit = cdt.all_faces_begin(),
fitend = cdt.all_faces_end(); fit!=fitend; ++fit)
{
fit->info().is_external = true;
fit->info().is_process = false;
}
//check if the facet is external or internal
std::queue<CDT::Face_handle> face_queue;
CDT::Face_handle face_internal = NULL;
face_queue.push(cdt.infinite_vertex()->face());
while(! face_queue.empty() )
{
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
if(!fh->info().is_process)
{
fh->info().is_process = true;
for(int i = 0; i <3; ++i)
{
if(!cdt.is_constrained(std::make_pair(fh, i)))
{
face_queue.push(fh->neighbor(i));
}
else if (face_internal==NULL)
{
face_internal = fh->neighbor(i);
}
}
}
}
if ( face_internal!=NULL )
face_queue.push(face_internal);
while(! face_queue.empty() )
{
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
if(!fh->info().is_process)
{
fh->info().is_process = true;
fh->info().is_external = false;
for(int i = 0; i <3; ++i)
{
if(!cdt.is_constrained(std::make_pair(fh, i)))
{
face_queue.push(fh->neighbor(i));
}
}
}
}
//iterates on the internal faces to add the vertices to the positions
//and the normals to the appropriate vectors
for(CDT::Finite_faces_iterator ffit = cdt.finite_faces_begin(),
//.........这里部分代码省略.........
开发者ID:kriolog，项目名称:cgal，代码行数:101，代码来源:Viewer.cpp
示例11: constrained_delaunay_triangulation
void constrained_delaunay_triangulation(LCC_3 &lcc, Dart_handle d1)
{
CGAL::set_ascii_mode(std::cout);
std::cout<<"Vertices: ";
for (LCC_3::Vertex_attribute_const_range::iterator
v=lcc.vertex_attributes().begin(),
vend=lcc.vertex_attributes().end(); v!=vend; ++v)
std::cout << lcc.point_of_vertex_attribute(v) << "; ";
std::cout<<std::endl;
LCC_3::Vector normal = CGAL::compute_normal_of_cell_2(lcc,d1);
P_traits cdt_traits(normal);
CDT cdt(cdt_traits);
//inserting the constraints edge by edge
LCC_3::Dart_of_orbit_range<1>::iterator
it(lcc.darts_of_orbit<1>(d1).begin());
CDT::Vertex_handle previous=LCC_3::null_handle, first=LCC_3::null_handle,
vh=LCC_3::null_handle;
for (LCC_3::Dart_of_orbit_range<1>::iterator
itend(lcc.darts_of_orbit<1>(d1).end()); it!=itend; ++it)
{
vh = cdt.insert(lcc.point(it));
vh->info()=it;
if( first==NULL ){
first=vh;
}
if( previous!=NULL){
CGAL_assertion( previous !=vh );
cdt.insert_constraint(previous,vh);
}
previous=vh;
}
cdt.insert_constraint(previous,first);
CGAL_assertion(cdt.is_valid());
// sets mark is_external
for( CDT::All_faces_iterator fit = cdt.all_faces_begin(),
fitend = cdt.all_faces_end(); fit != fitend; ++fit)
{
fit->info().is_external = false;
fit->info().exist_edge[0]=false;
fit->info().exist_edge[1]=false;
fit->info().exist_edge[2]=false;
}
std::queue<CDT::Face_handle> face_queue;
face_queue.push(cdt.infinite_vertex()->face());
while(! face_queue.empty() )
{
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
if(!fh->info().is_external)
{
fh->info().is_external = true;
for(int i = 0; i <3; ++i)
{
if(!cdt.is_constrained(std::make_pair(fh, i)))
{
face_queue.push(fh->neighbor(i));
}
}
}
}
for( CDT::Finite_edges_iterator eit = cdt.finite_edges_begin(),
eitend = cdt.finite_edges_end(); eit != eitend; ++eit)
{
CDT::Face_handle fh = eit->first;
int index = eit->second;
CDT::Face_handle opposite_fh = fh->neighbor(index);
if(cdt.is_constrained(std::make_pair(fh, index)))
{
fh->info().exist_edge[index]=true;
opposite_fh->info().exist_edge[cdt.mirror_index(fh,index)]=true;
if ( !fh->info().is_external && number_of_existing_edge(fh)==2 )
face_queue.push(fh);
if ( !opposite_fh->info().is_external &&
number_of_existing_edge(opposite_fh)==2 )
face_queue.push(opposite_fh);
}
}
while( !face_queue.empty() )
{
CDT::Face_handle fh = face_queue.front();
face_queue.pop();
CGAL_assertion( number_of_existing_edge(fh)>=2 ); // i.e. ==2 or ==3
CGAL_assertion( !fh->info().is_external );
if (number_of_existing_edge(fh)==2)
{
int index = get_free_edge(fh);
CDT::Face_handle opposite_fh = fh->neighbor(index);
//.........这里部分代码省略.........
开发者ID:BijanZarif，项目名称:mshr，代码行数:101，代码来源:linear_cell_complex_3_triangulation.cpp
示例12: is_external
bool is_external(CDT::Face_handle fh)
{
return fh->info().is_external;
}
开发者ID:BijanZarif，项目名称:mshr，代码行数:4，代码来源:linear_cell_complex_3_triangulation.cpp
注：本文中的cdt::Face_handle类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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