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Add adaptive remeshing to Polyhedorn demo, PMP plugin

This commit is contained in:
Ivan Paden 2023-06-30 21:15:37 +02:00
parent 0fbcb4175c
commit 91216f7875
2 changed files with 226 additions and 75 deletions
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16
Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/tangential_relaxation.h
View File

@ -465,16 +465,16 @@ void tangential_relaxation_with_sizing(const VertexRange& vertices,
const vertex_descriptor v2 = source(h, tm);
//todo ip- alt calc
const Vector_3 vec0 = vector(get(vpm, v), get(vpm, v1));
const Vector_3 vec1 = vector(get(vpm, v), get(vpm, v2));
const double sqarea = squared_length(cross_product(vec0, vec1));
const double face_weight = CGAL::approximate_sqrt(sqarea)
/ pow(1. / 3. * (sizing.get_sizing(v) + sizing.get_sizing(v1) + sizing.get_sizing(v2)), 2);
// const Vector_3 vec0 = vector(get(vpm, v), get(vpm, v1));
// const Vector_3 vec1 = vector(get(vpm, v), get(vpm, v2));
// const double sqarea = squared_length(cross_product(vec0, vec1));
// const double face_weight = CGAL::approximate_sqrt(sqarea)
// / pow(1. / 3. * (sizing.get_sizing(v) + sizing.get_sizing(v1) + sizing.get_sizing(v2)), 2);
//todo ip- paper implementation
// const double tri_area = gt_area(get(vpm, v), get(vpm, v1), get(vpm, v2));
// const double face_weight = tri_area
// / (1. / 3. * (sizing.get_sizing(v) + sizing.get_sizing(v1) + sizing.get_sizing(v2)));
const double tri_area = gt_area(get(vpm, v), get(vpm, v1), get(vpm, v2));
const double face_weight = tri_area
/ (1. / 3. * (sizing.get_sizing(v) + sizing.get_sizing(v1) + sizing.get_sizing(v2)));
weight += face_weight;
const Point_3 centroid = gt_centroid(get(vpm, v), get(vpm, v1), get(vpm, v2));

159
Polyhedron/demo/Polyhedron/Plugins/PMP/Isotropic_remeshing_plugin.cpp
View File

@ -358,9 +358,13 @@ public Q_SLOTS:
return;
}
int edge_sizing_type = ui.edgeSizing_type_combo_box->currentIndex();
bool edges_only = ui.splitEdgesOnly_checkbox->isChecked();
bool preserve_duplicates = ui.preserveDuplicates_checkbox->isChecked();
double target_length = ui.edgeLength_dspinbox->value();
double error_tol = ui.errorTol_edit->value();
double min_length = ui.minEdgeLength_edit->value();
double max_length = ui.maxEdgeLength_edit->value();
unsigned int nb_iter = ui.nbIterations_spinbox->value();
unsigned int nb_smooth = ui.nbSmoothing_spinbox->value();
bool protect = ui.protect_checkbox->isChecked();
@ -457,6 +461,8 @@ public Q_SLOTS:
}
}
if (edge_sizing_type == 0)
{
if (fpmap_valid)
CGAL::Polygon_mesh_processing::isotropic_remeshing(faces(*selection_item->polyhedron())
, target_length
@ -480,6 +486,36 @@ public Q_SLOTS:
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap())
);
}
else if (edge_sizing_type == 1)
{
std::pair<double, double> edge_min_max{min_length, max_length};
PMP::Adaptive_sizing_field adaptive_sizing_field(error_tol
, edge_min_max
, *selection_item->polyhedron());
if (fpmap_valid)
CGAL::Polygon_mesh_processing::isotropic_remeshing(faces(*selection_item->polyhedron())
, adaptive_sizing_field
, *selection_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter)
.protect_constraints(protect)
.edge_is_constrained_map(selection_item->constrained_edges_pmap())
.relax_constraints(smooth_features)
.number_of_relaxation_steps(nb_smooth)
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap())
.face_patch_map(fpmap));
else
CGAL::Polygon_mesh_processing::isotropic_remeshing(faces(*selection_item->polyhedron())
, adaptive_sizing_field
, *selection_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter)
.protect_constraints(protect)
.edge_is_constrained_map(selection_item->constrained_edges_pmap())
.relax_constraints(smooth_features)
.number_of_relaxation_steps(nb_smooth)
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap())
);
}
}
else //selected_facets not empty
{
for (auto f : selection_item->selected_facets)
@ -507,6 +543,8 @@ public Q_SLOTS:
}
}
if (edge_sizing_type == 0)
{
if (fpmap_valid)
CGAL::Polygon_mesh_processing::isotropic_remeshing(selection_item->selected_facets
, target_length
@ -527,7 +565,38 @@ public Q_SLOTS:
.edge_is_constrained_map(selection_item->constrained_edges_pmap())
.relax_constraints(smooth_features)
.number_of_relaxation_steps(nb_smooth)
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap()));
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap())
);
}
else if (edge_sizing_type == 1)
{
std::pair<double, double> edge_min_max{min_length, max_length};
PMP::Adaptive_sizing_field adaptive_sizing_field(error_tol
, edge_min_max
, *selection_item->polyhedron());
if (fpmap_valid)
CGAL::Polygon_mesh_processing::isotropic_remeshing(selection_item->selected_facets
, adaptive_sizing_field
, *selection_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter)
.protect_constraints(protect)
.edge_is_constrained_map(selection_item->constrained_edges_pmap())
.relax_constraints(smooth_features)
.number_of_relaxation_steps(nb_smooth)
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap())
.face_patch_map(fpmap));
else
CGAL::Polygon_mesh_processing::isotropic_remeshing(selection_item->selected_facets
, adaptive_sizing_field
, *selection_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter)
.protect_constraints(protect)
.edge_is_constrained_map(selection_item->constrained_edges_pmap())
.relax_constraints(smooth_features)
.number_of_relaxation_steps(nb_smooth)
.vertex_is_constrained_map(selection_item->constrained_vertices_pmap())
);
}
}
}
@ -634,6 +703,8 @@ public Q_SLOTS:
}
}
if (edge_sizing_type == 0)
{
if (fpmap_valid)
CGAL::Polygon_mesh_processing::isotropic_remeshing(
faces(*poly_item->polyhedron())
@ -655,6 +726,35 @@ public Q_SLOTS:
.number_of_relaxation_steps(nb_smooth)
.edge_is_constrained_map(ecm)
.relax_constraints(smooth_features));
}
else if (edge_sizing_type == 1)
{
std::pair<double, double> edge_min_max{min_length, max_length};
PMP::Adaptive_sizing_field adaptive_sizing_field(error_tol
, edge_min_max
, *poly_item->polyhedron());
if (fpmap_valid)
CGAL::Polygon_mesh_processing::isotropic_remeshing(
faces(*poly_item->polyhedron())
, adaptive_sizing_field
, *poly_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter)
.protect_constraints(protect)
.number_of_relaxation_steps(nb_smooth)
.edge_is_constrained_map(ecm)
.relax_constraints(smooth_features)
.face_patch_map(fpmap));
else
CGAL::Polygon_mesh_processing::isotropic_remeshing(
faces(*poly_item->polyhedron())
, adaptive_sizing_field
, *poly_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter)
.protect_constraints(protect)
.number_of_relaxation_steps(nb_smooth)
.edge_is_constrained_map(ecm)
.relax_constraints(smooth_features));
}
//recollect sharp edges
for(edge_descriptor e : edges(pmesh))
@ -687,7 +787,11 @@ public Q_SLOTS:
{
// Remeshing parameters
bool edges_only = false, preserve_duplicates = false;
int edge_sizing_type = 0;
double target_length = 0.;
double error_tol = 0.;
double min_length = 0.;
double max_length = 0.;
unsigned int nb_iter = 1;
bool protect = false;
bool smooth_features = true;
@ -723,7 +827,11 @@ public Q_SLOTS:
edges_only = ui.splitEdgesOnly_checkbox->isChecked();
preserve_duplicates = ui.preserveDuplicates_checkbox->isChecked();
edge_sizing_type = ui.edgeSizing_type_combo_box->currentIndex();
target_length = ui.edgeLength_dspinbox->value();
error_tol = ui.errorTol_edit->value();
min_length = ui.minEdgeLength_edit->value();
max_length = ui.maxEdgeLength_edit->value();
nb_iter = ui.nbIterations_spinbox->value();
protect = ui.protect_checkbox->isChecked();
smooth_features = ui.smooth1D_checkbox->isChecked();
@ -785,8 +893,8 @@ public Q_SLOTS:
#else
Remesh_polyhedron_item remesher(edges_only,
target_length, nb_iter, protect, smooth_features);
Remesh_polyhedron_item remesher(edges_only, edge_sizing_type,
target_length, error_tol, min_length, max_length, nb_iter, protect, smooth_features);
for(Scene_facegraph_item* poly_item : selection)
{
QElapsedTimer time;
@ -823,6 +931,7 @@ private:
typedef boost::graph_traits<FaceGraph>::halfedge_descriptor halfedge_descriptor;
typedef boost::graph_traits<FaceGraph>::face_descriptor face_descriptor;
int edge_sizing_type_;
bool edges_only_;
double target_length_;
double error_tol_;
@ -859,6 +968,8 @@ private:
std::cout << "Isotropic remeshing of "
<< poly_item->name().toStdString() << " started..." << std::endl;
Scene_polyhedron_selection_item::Is_constrained_map<Edge_set> ecm(&edges_to_protect);
if (edge_sizing_type_ == 0)
{
CGAL::Polygon_mesh_processing::isotropic_remeshing(
faces(*poly_item->polyhedron())
, target_length_
@ -868,6 +979,23 @@ private:
.edge_is_constrained_map(ecm)
.face_patch_map(get(CGAL::face_patch_id_t<int>(), *poly_item->polyhedron()))
.relax_constraints(smooth_features_));
}
else
{
std::pair<double, double> edge_min_max{min_length_, max_length_};
PMP::Adaptive_sizing_field adaptive_sizing_field(error_tol_
, edge_min_max
, *poly_item->polyhedron());
CGAL::Polygon_mesh_processing::isotropic_remeshing(
faces(*poly_item->polyhedron())
, target_length_
, *poly_item->polyhedron()
, CGAL::parameters::number_of_iterations(nb_iter_)
.protect_constraints(protect_)
.edge_is_constrained_map(ecm)
.face_patch_map(get(CGAL::face_patch_id_t<int>(), *poly_item->polyhedron()))
.relax_constraints(smooth_features_));
}
std::cout << "Isotropic remeshing of "
<< poly_item->name().toStdString() << " done." << std::endl;
}
@ -876,12 +1004,20 @@ private:
public:
Remesh_polyhedron_item(
const bool edges_only,
const int edge_sizing_type,
const double target_length,
const double error_tol,
const double min_length,
const double max_length,
const unsigned int nb_iter,
const bool protect,
const bool smooth_features)
: edges_only_(edges_only)
, edge_sizing_type_(edge_sizing_type)
, target_length_(target_length)
, error_tol_(error_tol)
, min_length_(min_length)
, max_length_(max_length)
, nb_iter_(nb_iter)
, protect_(protect)
, smooth_features_(smooth_features)
@ -889,7 +1025,11 @@ private:
Remesh_polyhedron_item(const Remesh_polyhedron_item& remesh)
: edges_only_(remesh.edges_only_)
, edge_sizing_type_(remesh.edge_sizing_type_)
, target_length_(remesh.target_length_)
, error_tol_(remesh.error_tol_)
, min_length_(remesh.min_length_)
, max_length_(remesh.max_length_)
, nb_iter_(remesh.nb_iter_)
, protect_(remesh.protect_)
, smooth_features_(remesh.smooth_features_)
@ -916,11 +1056,17 @@ private:
const std::vector<Scene_facegraph_item*>& selection,
std::map<FaceGraph*,Edge_set >& edges_to_protect,
const bool edges_only,
const int edge_sizing_type,
const double target_length,
const double error_tol,
const double min_length,
const double max_length,
const unsigned int nb_iter,
const bool protect,
const bool smooth_features)
: RemeshFunctor(edges_only, target_length, nb_iter, protect, smooth_features)
: RemeshFunctor(edges_only, edge_sizing_type, target_length
, error_tol, min_length, max_length
, nb_iter, protect, smooth_features)
, selection_(selection), edges_to_protect_(edges_to_protect)
{}
@ -973,6 +1119,9 @@ public Q_SLOTS:
ui.smooth1D_label->setEnabled(false);
ui.smooth1D_checkbox->setEnabled(false);
ui.smooth1D_checkbox->setChecked(false);
ui.edgeSizing_type_combo_box->setCurrentIndex(0);
ui.edgeSizing_type_combo_box->setEnabled(false);
}
else
{
@ -986,6 +1135,8 @@ public Q_SLOTS:
ui.smooth1D_label->setEnabled(true);
ui.smooth1D_checkbox->setEnabled(true);
ui.edgeSizing_type_combo_box->setEnabled(true);
}
}