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cgal/Polyhedron/demo/Polyhedron/Scene_points_with_normal_it...

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#define CGAL_data_type float
#define CGAL_GL_data_type GL_FLOAT
#include "Scene_points_with_normal_item.h"
#include "Polyhedron_type.h"
#include <CGAL/Polygon_mesh_processing/compute_normal.h>
#include <CGAL/Point_set_3/IO.h>
#include <CGAL/Timer.h>
#include <CGAL/Memory_sizer.h>
#include <CGAL/compute_average_spacing.h>
#include <CGAL/Three/Viewer_interface.h>
#include <CGAL/Orthogonal_k_neighbor_search.h>
#include <CGAL/Search_traits_3.h>
#include <CGAL/Search_traits_adapter.h>
#include <CGAL/linear_least_squares_fitting_3.h>
#include <QObject>
#include <QApplication>
#include <QMenu>
#include <QSlider>
#include <QWidgetAction>
#include <QGLViewer/manipulatedCameraFrame.h>
#include <set>
#include <stack>
#include <algorithm>
#include <boost/array.hpp>
const std::size_t limit_fast_drawing = 300000; //arbitraty large value
struct Scene_points_with_normal_item_priv
{
Scene_points_with_normal_item_priv(Scene_points_with_normal_item* parent)
:m_points(new Point_set)
{
item = parent;
nb_points = 0;
nb_selected_points = 0;
nb_lines = 0;
is_point_slider_moving = false;
normal_Slider = new QSlider(Qt::Horizontal);
normal_Slider->setValue(20);
point_Slider = new QSlider(Qt::Horizontal);
point_Slider->setValue(2);
point_Slider->setMinimum(1);
point_Slider->setMaximum(25);
}
Scene_points_with_normal_item_priv(const Scene_points_with_normal_item& toCopy, Scene_points_with_normal_item* parent)
: m_points(new Point_set(*toCopy.d->m_points))
{
item = parent;
is_point_slider_moving = false;
normal_Slider = new QSlider(Qt::Horizontal);
normal_Slider->setValue(20);
point_Slider = new QSlider(Qt::Horizontal);
point_Slider->setValue(2);
point_Slider->setMinimum(1);
point_Slider->setMaximum(25);
}
Scene_points_with_normal_item_priv(const Polyhedron& input_mesh, Scene_points_with_normal_item* parent)
: m_points(new Point_set)
{
item = parent;
is_point_slider_moving = false;
nb_points = 0;
nb_selected_points = 0;
nb_lines = 0;
Polyhedron::Vertex_iterator v;
m_points->add_normal_map();
for (v = const_cast<Polyhedron&>(input_mesh).vertices_begin();
v != const_cast<Polyhedron&>(input_mesh).vertices_end(); v++)
{
const Kernel::Point_3& p = v->point();
Kernel::Vector_3 n =
CGAL::Polygon_mesh_processing::compute_vertex_normal(v, input_mesh);
m_points->insert(p,n);
}
normal_Slider = new QSlider(Qt::Horizontal);
normal_Slider->setValue(20);
point_Slider = new QSlider(Qt::Horizontal);
point_Slider->setValue(2);
point_Slider->setMinimum(1);
point_Slider->setMaximum(25);
}
~Scene_points_with_normal_item_priv()
{
if(m_points)
{
delete m_points;
m_points = NULL;
}
delete normal_Slider;
delete point_Slider;
}
bool isPointSliderMoving() { return is_point_slider_moving; }
void initializeBuffers(CGAL::Three::Viewer_interface *viewer) const;
void compute_normals_and_vertices() const;
enum VAOs {
Edges=0,
ThePoints,
TheShadedPoints,
Selected_points,
Selected_shaded_points,
NbOfVaos
};
enum VBOs {
Edges_vertices = 0,
Points_vertices,
Points_normals,
Points_colors,
Selected_points_vertices,
Selected_points_normals,
NbOfVbos
};
Point_set* m_points;
QAction* actionDeleteSelection;
QAction* actionResetSelection;
QAction* actionSelectDuplicatedPoints;
QSlider* normal_Slider;
QSlider* point_Slider;
mutable bool is_point_slider_moving;
mutable std::vector<CGAL_data_type> positions_lines;
mutable std::vector<CGAL_data_type> normals;
mutable std::vector<CGAL_data_type> positions_normals;
mutable std::vector<CGAL_data_type> positions_selected_normals;
mutable std::vector<CGAL_data_type> colors_points;
mutable std::size_t nb_points;
mutable std::size_t nb_selected_points;
mutable std::size_t nb_lines;
mutable QOpenGLShaderProgram *program;
Scene_points_with_normal_item* item;
};
Scene_points_with_normal_item::Scene_points_with_normal_item()
: Scene_item(Scene_points_with_normal_item_priv::NbOfVbos,Scene_points_with_normal_item_priv::NbOfVaos)
{
setRenderingMode(Points);
is_selected = true;
d = new Scene_points_with_normal_item_priv(this);
}
// Copy constructor
Scene_points_with_normal_item::Scene_points_with_normal_item(const Scene_points_with_normal_item& toCopy)
:Scene_item(Scene_points_with_normal_item_priv::NbOfVbos,Scene_points_with_normal_item_priv::NbOfVaos)
{
d = new Scene_points_with_normal_item_priv(toCopy, this);
if (has_normals())
{
setRenderingMode(PointsPlusNormals);
is_selected = true;
}
else
{
setRenderingMode(Points);
is_selected = true;
}
invalidateOpenGLBuffers();
}
// Converts polyhedron to point set
Scene_points_with_normal_item::Scene_points_with_normal_item(const Polyhedron& input_mesh)
: Scene_item(Scene_points_with_normal_item_priv::NbOfVbos,Scene_points_with_normal_item_priv::NbOfVaos)
{
// Converts Polyhedron vertices to point set.
// Computes vertices normal from connectivity.
d = new Scene_points_with_normal_item_priv(input_mesh, this);
setRenderingMode(PointsPlusNormals);
is_selected = true;
invalidateOpenGLBuffers();
}
Scene_points_with_normal_item::~Scene_points_with_normal_item()
{
delete d;
}
void Scene_points_with_normal_item_priv::initializeBuffers(CGAL::Three::Viewer_interface *viewer) const
{
compute_normals_and_vertices();
//vao for the edges
if(item->has_normals())
{
program = item->getShaderProgram(Scene_points_with_normal_item::PROGRAM_NO_SELECTION, viewer);
program->bind();
item->vaos[Edges]->bind();
item->buffers[Edges_vertices].bind();
item->buffers[Edges_vertices].allocate(positions_lines.data(),
static_cast<int>(positions_lines.size()*sizeof(CGAL_data_type)));
program->enableAttributeArray("vertex");
program->setAttributeBuffer("vertex",CGAL_GL_data_type,0,3);
item->buffers[Edges_vertices].release();
if (!(colors_points.empty()))
{
item->buffers[Points_colors].bind();
item->buffers[Points_colors].allocate (colors_points.data(),
static_cast<int>(colors_points.size()*sizeof(CGAL_data_type)));
program->enableAttributeArray("colors");
program->setAttributeBuffer("colors",CGAL_GL_data_type,0,3);
item->buffers[Points_colors].release();
}
item->vaos[Edges]->release();
nb_lines = positions_lines.size();
program->release();
}
//vao for the points
{
program = item->getShaderProgram(Scene_points_with_normal_item::PROGRAM_NO_SELECTION, viewer);
program->bind();
item->vaos[ThePoints]->bind();
item->buffers[Edges_vertices].bind();
if(!item->has_normals()) {
item->buffers[Edges_vertices].allocate(positions_lines.data(),
static_cast<int>(positions_lines.size()*sizeof(CGAL_data_type)));
}
program->enableAttributeArray("vertex");
if(item->has_normals())
program->setAttributeBuffer("vertex",CGAL_GL_data_type,0,3,
static_cast<int>(6*sizeof(CGAL_GL_data_type)));
else
program->setAttributeBuffer("vertex",CGAL_GL_data_type,0,3);
item->buffers[Edges_vertices].release();
if (!(colors_points.empty()))
{
item->buffers[Points_colors].bind();
item->buffers[Points_colors].allocate (colors_points.data(),
static_cast<int>(colors_points.size()*sizeof(CGAL_data_type)));
program->enableAttributeArray("colors");
program->setAttributeBuffer("colors",CGAL_GL_data_type,0,3,6*sizeof(CGAL_data_type));
item->buffers[Points_colors].release();
colors_points.resize(0);
std::vector<CGAL_data_type>(colors_points).swap(colors_points);
}
item->vaos[ThePoints]->release();
program->release();
if(item->has_normals())
{
program = item->getShaderProgram(Scene_points_with_normal_item::PROGRAM_WITH_LIGHT, viewer);
item->vaos[TheShadedPoints]->bind();
item->buffers[Edges_vertices].bind();
program->enableAttributeArray("vertex");
program->setAttributeBuffer("vertex",CGAL_GL_data_type,0,3,
static_cast<int>(6*sizeof(CGAL_GL_data_type)));
item->buffers[Edges_vertices].release();
item->buffers[Points_normals].bind();
item->buffers[Points_normals].allocate(positions_normals.data(),
static_cast<int>(positions_normals.size()*sizeof(CGAL_data_type)));
program->enableAttributeArray("normals");
program->setAttributeBuffer("normals",CGAL_GL_data_type,0,3);
item->buffers[Points_normals].release();
positions_normals.resize(0);
std::vector<CGAL_data_type>(positions_normals).swap(positions_normals);
item->vaos[TheShadedPoints]->release();
program->release();
}
if(item->has_normals())
nb_points = positions_lines.size()/2;
else
nb_points = positions_lines.size();
}
//vao for the selected points
{
program = item->getShaderProgram(Scene_points_with_normal_item::PROGRAM_NO_SELECTION, viewer);
program->bind();
item->vaos[Selected_points]->bind();
item->buffers[Edges_vertices].bind();
program->enableAttributeArray("vertex");
if(!item->has_normals())
{
program->setAttributeBuffer("vertex",CGAL_GL_data_type,
static_cast<int>( 3*(m_points->size()-m_points->nb_selected_points())*sizeof(CGAL_data_type) ),
3,
0);
}
else
{
program->setAttributeBuffer("vertex",CGAL_GL_data_type,
static_cast<int>( 6*(m_points->size()-m_points->nb_selected_points())*sizeof(CGAL_data_type) ),
3,
static_cast<int>(6*sizeof(CGAL_GL_data_type)));
}
item->buffers[Edges_vertices].release();
item->vaos[Selected_points]->release();
program->release();
if(item->has_normals())
{
program = item->getShaderProgram(Scene_points_with_normal_item::PROGRAM_WITH_LIGHT, viewer);
item->vaos[Selected_shaded_points]->bind();
item->buffers[Edges_vertices].bind();
program->enableAttributeArray("vertex");
program->setAttributeBuffer("vertex",CGAL_GL_data_type,
static_cast<int>( 6*(m_points->size()-m_points->nb_selected_points())*sizeof(CGAL_data_type) ),
3,
static_cast<int>(6*sizeof(CGAL_GL_data_type)));
item->buffers[Edges_vertices].release();
item->buffers[Selected_points_normals].bind();
item->buffers[Selected_points_normals].allocate(positions_selected_normals.data(),
static_cast<int>(positions_selected_normals.size()*sizeof(CGAL_data_type)));
program->enableAttributeArray("normals");
program->setAttributeBuffer("normals",CGAL_GL_data_type,0,3);
item->buffers[Selected_points_normals].release();
positions_selected_normals.resize(0);
std::vector<CGAL_data_type>(positions_selected_normals).swap(positions_selected_normals);
item->vaos[Selected_shaded_points]->release();
program->release();
}
nb_selected_points = 3*m_points->nb_selected_points();
}
positions_lines.resize(0);
positions_lines.shrink_to_fit();
item->are_buffers_filled = true;
}
void Scene_points_with_normal_item_priv::compute_normals_and_vertices() const
{
const qglviewer::Vec offset = static_cast<CGAL::Three::Viewer_interface*>(QGLViewer::QGLViewerPool().first())->offset();
QApplication::setOverrideCursor(Qt::WaitCursor);
positions_lines.resize(0);
normals.resize(0);
positions_normals.resize(0);
positions_selected_normals.resize(0);
normals.resize(0);
colors_points.resize(0);
//Shuffle container to allow quick display random points
std::random_shuffle (m_points->begin(), m_points->first_selected());
if (m_points->nb_selected_points() != 0)
std::random_shuffle (m_points->first_selected(), m_points->end());
//if item has normals, points will be one point out of two in the lines data.
//else points will be lines and lines discarded.
double average_spacing = 0;
double normal_length =0;
double length_factor =0;
if (item->has_normals())
{
#ifdef LINK_WITH_TBB
typedef CGAL::Parallel_tag Concurrency_tag;
#else
typedef CGAL::Sequential_tag Concurrency_tag;
#endif
// Store normals
Kernel::Sphere_3 region_of_interest = m_points->region_of_interest();
positions_lines.reserve(m_points->size() * 6);
positions_normals.reserve((m_points->size() - m_points->nb_selected_points()) * 3);
positions_selected_normals.reserve(m_points->nb_selected_points() * 3);
average_spacing = CGAL::compute_average_spacing<Concurrency_tag>(
m_points->begin(), m_points->end(), m_points->point_map(),
6);
normal_length = (std::min)(average_spacing, std::sqrt(region_of_interest.squared_radius() / 1000.));
length_factor = 5.0/100*normal_Slider->value();
}
else
{
positions_lines.reserve(m_points->size() * 3);
}
for (Point_set_3<Kernel>::const_iterator it = m_points->begin(); it != m_points->first_selected(); ++it)
{
const Kernel::Point_3& p = m_points->point(*it);
positions_lines.push_back(p.x()+offset.x);
positions_lines.push_back(p.y()+offset.y);
positions_lines.push_back(p.z()+offset.z);
if(item->has_normals())
{
const Kernel::Vector_3& n = m_points->normal(*it);
Point_set_3<Kernel>::Point q = p + normal_length * length_factor* n;
positions_lines.push_back(q.x()+offset.x);
positions_lines.push_back(q.y()+offset.y);
positions_lines.push_back(q.z()+offset.z);
positions_normals.push_back(n.x());
positions_normals.push_back(n.y());
positions_normals.push_back(n.z());
}
}
for (Point_set_3<Kernel>::const_iterator it = m_points->first_selected(); it != m_points->end(); ++it)
{
const Kernel::Point_3& p = m_points->point(*it);
positions_lines.push_back(p.x()+offset.x);
positions_lines.push_back(p.y()+offset.y);
positions_lines.push_back(p.z()+offset.z);
if(item->has_normals())
{
const Kernel::Vector_3& n = m_points->normal(*it);
Point_set_3<Kernel>::Point q = p + normal_length * length_factor* n;
positions_lines.push_back(q.x()+offset.x);
positions_lines.push_back(q.y()+offset.y);
positions_lines.push_back(q.z()+offset.z);
positions_selected_normals.push_back(n.x());
positions_selected_normals.push_back(n.y());
positions_selected_normals.push_back(n.z());
}
}
//The colors
if (m_points->has_colors())
{
colors_points.reserve((m_points->size() - m_points->nb_selected_points()) * 6);
for (Point_set_3<Kernel>::const_iterator it = m_points->begin(); it != m_points->end(); ++it)
{
colors_points.push_back (m_points->red(*it));
colors_points.push_back (m_points->green(*it));
colors_points.push_back (m_points->blue(*it));
colors_points.push_back (m_points->red(*it));
colors_points.push_back (m_points->green(*it));
colors_points.push_back (m_points->blue(*it));
}
}
QApplication::restoreOverrideCursor();
}
// Duplicates scene item
Scene_points_with_normal_item*
Scene_points_with_normal_item::clone() const
{
return new Scene_points_with_normal_item(*this);
}
// Is selection empty?
bool Scene_points_with_normal_item::isSelectionEmpty() const
{
return (d->m_points->nb_selected_points() == 0);
}
// Delete selection
void Scene_points_with_normal_item::deleteSelection()
{
CGAL::Timer task_timer; task_timer.start();
std::cerr << "Delete " << d->m_points->nb_selected_points() << " points...";
// Delete selected points
d->m_points->delete_selection();
std::size_t memory = CGAL::Memory_sizer().virtual_size();
std::cerr << "done: " << task_timer.time() << " seconds, "
<< (memory>>20) << " Mb allocated"
<< std::endl;
invalidateOpenGLBuffers();
Q_EMIT itemChanged();
}
// Invert selection
void Scene_points_with_normal_item::invertSelection()
{
d->m_points->invert_selection();
invalidateOpenGLBuffers();
Q_EMIT itemChanged();
}
// Select everything
void Scene_points_with_normal_item::selectAll()
{
d->m_points->select_all();
invalidateOpenGLBuffers();
Q_EMIT itemChanged();
}
// Reset selection mark
void Scene_points_with_normal_item::resetSelection()
{
// Un-select all points
d->m_points->unselect_all();
invalidateOpenGLBuffers();
Q_EMIT itemChanged();
}
//Select duplicated points
void Scene_points_with_normal_item::selectDuplicates()
{
std::set<Kernel::Point_3> unique_points;
std::vector<Point_set::Index> unselected, selected;
for (Point_set::iterator ptit = d->m_points->begin(); ptit!= d->m_points->end(); ++ ptit)
if ( !unique_points.insert(d->m_points->point(*ptit)).second)
selected.push_back (*ptit);
else
unselected.push_back (*ptit);
for (std::size_t i = 0; i < unselected.size(); ++ i)
*(d->m_points->begin() + i) = unselected[i];
for (std::size_t i = 0; i < selected.size(); ++ i)
*(d->m_points->begin() + (unselected.size() + i)) = selected[i];
if (selected.empty ())
{
d->m_points->unselect_all();
}
else
{
d->m_points->set_first_selected
(d->m_points->begin() + unselected.size());
}
invalidateOpenGLBuffers();
Q_EMIT itemChanged();
}
// Loads point set from .PLY file
bool Scene_points_with_normal_item::read_ply_point_set(std::istream& stream)
{
Q_ASSERT(d->m_points != NULL);
d->m_points->clear();
bool ok = stream &&
CGAL::read_ply_point_set (stream, *(d->m_points)) &&
!isEmpty();
std::cerr << d->m_points->info();
if (d->m_points->has_normal_map())
setRenderingMode(PointsPlusNormals);
if (d->m_points->check_colors())
std::cerr << "-> Point set has colors" << std::endl;
invalidateOpenGLBuffers();
return ok;
}
// Write point set to .PLY file
bool Scene_points_with_normal_item::write_ply_point_set(std::ostream& stream) const
{
Q_ASSERT(d->m_points != NULL);
if (!stream)
return false;
stream << *(d->m_points);
return true;
}
// Loads point set from .OFF file
bool Scene_points_with_normal_item::read_off_point_set(std::istream& stream)
{
Q_ASSERT(d->m_points != NULL);
d->m_points->clear();
bool ok = stream &&
CGAL::read_off_point_set(stream, *(d->m_points)) &&
!isEmpty();
invalidateOpenGLBuffers();
return ok;
}
// Write point set to .OFF file
bool Scene_points_with_normal_item::write_off_point_set(std::ostream& stream) const
{
Q_ASSERT(d->m_points != NULL);
return stream &&
CGAL::write_off_point_set (stream, *(d->m_points));
}
// Loads point set from .XYZ file
bool Scene_points_with_normal_item::read_xyz_point_set(std::istream& stream)
{
Q_ASSERT(d->m_points != NULL);
d->m_points->clear();
bool ok = stream &&
CGAL::read_xyz_point_set (stream, *(d->m_points)) &&
!isEmpty();
invalidateOpenGLBuffers();
return ok;
}
// Write point set to .XYZ file
bool Scene_points_with_normal_item::write_xyz_point_set(std::ostream& stream) const
{
Q_ASSERT(d->m_points != NULL);
return stream &&
CGAL::write_xyz_point_set (stream, *(d->m_points));
}
QString
Scene_points_with_normal_item::toolTip() const
{
Q_ASSERT(d->m_points != NULL);
return QObject::tr("<p><b>%1</b> (color: %4)<br />"
"<i>Point set</i></p>"
"<p>Number of points: %2</p>")
.arg(name())
.arg(d->m_points->size())
.arg(color().name());
}
bool Scene_points_with_normal_item::supportsRenderingMode(RenderingMode m) const
{
switch ( m )
{
case Points:
return true;
case ShadedPoints:
case PointsPlusNormals:
case Splatting:
return has_normals();
default:
return false;
}
}
void Scene_points_with_normal_item::drawSplats(CGAL::Three::Viewer_interface* viewer) const
{
const qglviewer::Vec v_offset = static_cast<CGAL::Three::Viewer_interface*>(QGLViewer::QGLViewerPool().first())->offset();
Kernel::Vector_3 offset(v_offset.x, v_offset.y, v_offset.z);
// TODO add support for selection
viewer->glBegin(GL_POINTS);
if (d->m_points->has_colors())
for ( Point_set_3<Kernel>::const_iterator it = d->m_points->begin(); it != d->m_points->end(); it++)
{
Point_set::Point p = d->m_points->point (*it) + offset;
const Point_set::Vector& n = d->m_points->normal (*it);
viewer->glColor4d(d->m_points->red(*it),
d->m_points->green(*it),
d->m_points->blue(*it),
1.0);
viewer->glNormal3dv(&n.x());
viewer->glMultiTexCoord1d(GL_TEXTURE2, d->m_points->radius(*it));
viewer->glVertex3dv(&p.x());
}
else
for ( Point_set_3<Kernel>::const_iterator it = d->m_points->begin(); it != d->m_points->end(); it++)
{
const Point_set::Point p = d->m_points->point (*it) + offset;
const Point_set::Vector& n = d->m_points->normal (*it);
viewer->glNormal3dv(&n.x());
viewer->glMultiTexCoord1d(GL_TEXTURE2, d->m_points->radius(*it));
viewer->glVertex3dv(&p.x());
}
viewer->glEnd();
}
void Scene_points_with_normal_item::drawEdges(CGAL::Three::Viewer_interface* viewer) const
{
double ratio_displayed = 1.0;
if (viewer->inFastDrawing () &&
(d->nb_lines/6 > limit_fast_drawing)) // arbitrary large value
ratio_displayed = 6 * limit_fast_drawing / (double)(d->nb_lines);
if(!are_buffers_filled)
d->initializeBuffers(viewer);
vaos[Scene_points_with_normal_item_priv::Edges]->bind();
d->program=getShaderProgram(PROGRAM_NO_SELECTION);
attribBuffers(viewer,PROGRAM_NO_SELECTION);
d->program->bind();
d->program->setAttributeValue("colors", this->color());
viewer->glDrawArrays(GL_LINES, 0,
static_cast<GLsizei>(((std::size_t)(ratio_displayed * d->nb_lines)/3)));
vaos[Scene_points_with_normal_item_priv::Edges]->release();
d->program->release();
}
void Scene_points_with_normal_item::drawPoints(CGAL::Three::Viewer_interface* viewer) const
{
if(!are_buffers_filled)
d->initializeBuffers(viewer);
GLfloat point_size;
viewer->glGetFloatv(GL_POINT_SIZE, &point_size);
viewer->glPointSize(d->point_Slider->value());
double ratio_displayed = 1.0;
if ((viewer->inFastDrawing () || d->isPointSliderMoving())
&&((d->nb_points + d->nb_selected_points)/3 > limit_fast_drawing)) // arbitrary large value
ratio_displayed = 3 * limit_fast_drawing / (double)(d->nb_points + d->nb_selected_points);
// POINTS
if(has_normals() && renderingMode() == ShadedPoints)
{
vaos[Scene_points_with_normal_item_priv::TheShadedPoints]->bind();
d->program=getShaderProgram(PROGRAM_WITH_LIGHT);
attribBuffers(viewer,PROGRAM_WITH_LIGHT);
}
else
{
vaos[Scene_points_with_normal_item_priv::ThePoints]->bind();
d->program=getShaderProgram(PROGRAM_NO_SELECTION);
attribBuffers(viewer,PROGRAM_NO_SELECTION);
}
d->program->bind();
if (!(d->m_points->has_colors()) || renderingMode() == ShadedPoints)
d->program->setAttributeValue("colors", this->color());
viewer->glDrawArrays(GL_POINTS, 0,
static_cast<GLsizei>(((std::size_t)(ratio_displayed * d->nb_points)/3)));
if(has_normals() && renderingMode() == ShadedPoints)
vaos[Scene_points_with_normal_item_priv::TheShadedPoints]->release();
else
vaos[Scene_points_with_normal_item_priv::ThePoints]->release();
d->program->release();
// SELECTED POINTS
vaos[Scene_points_with_normal_item_priv::Selected_points]->bind();
if(has_normals() && renderingMode() == ShadedPoints)
{
vaos[Scene_points_with_normal_item_priv::Selected_shaded_points]->bind();
d->program=getShaderProgram(PROGRAM_WITH_LIGHT);
attribBuffers(viewer,PROGRAM_WITH_LIGHT);
}
else
{
vaos[Scene_points_with_normal_item_priv::Selected_points]->bind();
d->program=getShaderProgram(PROGRAM_NO_SELECTION);
attribBuffers(viewer,PROGRAM_NO_SELECTION);
}
d->program->bind();
d->program->setAttributeValue("colors", QColor(255,0,0));
viewer->glDrawArrays(GL_POINTS, 0,
static_cast<GLsizei>(((std::size_t)(ratio_displayed * d->nb_selected_points)/3)));
if(has_normals() && renderingMode() == ShadedPoints)
vaos[Scene_points_with_normal_item_priv::Selected_shaded_points]->bind();
else
vaos[Scene_points_with_normal_item_priv::Selected_points]->release();
d->program->release();
viewer->glPointSize(point_size);
}
// Gets wrapped point set
Point_set* Scene_points_with_normal_item::point_set()
{
Q_ASSERT(d->m_points != NULL);
return d->m_points;
}
const Point_set* Scene_points_with_normal_item::point_set() const
{
Q_ASSERT(d->m_points != NULL);
return d->m_points;
}
bool
Scene_points_with_normal_item::isEmpty() const
{
Q_ASSERT(d->m_points != NULL);
return d->m_points->empty();
}
void
Scene_points_with_normal_item::compute_bbox() const
{
Q_ASSERT(d->m_points != NULL);
Kernel::Iso_cuboid_3 bbox = d->m_points->bounding_box();
_bbox = Bbox(bbox.xmin(),bbox.ymin(),bbox.zmin(),
bbox.xmax(),bbox.ymax(),bbox.zmax());
}
void Scene_points_with_normal_item::computes_local_spacing(int k)
{
typedef Kernel Geom_traits;
typedef CGAL::Search_traits_3<Geom_traits> SearchTraits_3;
typedef CGAL::Search_traits_adapter <Point_set::Index, Point_set::Point_map, SearchTraits_3> Search_traits;
typedef CGAL::Orthogonal_k_neighbor_search<Search_traits> Neighbor_search;
typedef Neighbor_search::Tree Tree;
typedef Neighbor_search::Distance Distance;
// build kdtree
Tree tree(d->m_points->begin(),
d->m_points->end(),
Tree::Splitter(),
Search_traits (d->m_points->point_map())
);
Distance tr_dist(d->m_points->point_map());
if (!(d->m_points->has_property_map<double> ("radius")))
d->m_points->add_radius();
// Compute the radius of each point = (distance max to k nearest neighbors)/2.
{
int i=0;
for (Point_set::iterator it=d->m_points->begin(); it!=d->m_points->end(); ++it, ++i)
{
Neighbor_search search(tree, d->m_points->point(*it), k+1, 0, true, tr_dist);
double maxdist2 = (--search.end())->second; // squared distance to furthest neighbor
d->m_points->radius(*it) = sqrt(maxdist2)/2.;
}
}
d->m_points->set_radii_uptodate(true);
}
QMenu* Scene_points_with_normal_item::contextMenu()
{
const char* prop_name = "Menu modified by Scene_points_with_normal_item.";
QMenu* menu = Scene_item::contextMenu();
//add a slider to modify the normals length
// Use dynamic properties:
// http://doc.qt.io/qt-5/qobject.html#property
bool menuChanged = menu->property(prop_name).toBool();
if(!menuChanged) {
if(has_normals())
{
QMenu *container = new QMenu(tr("Normals Length"));
QWidgetAction *sliderAction = new QWidgetAction(0);
if((d->nb_points + d->nb_selected_points)/3 <= limit_fast_drawing)
{
connect(d->normal_Slider, &QSlider::valueChanged, this, &Scene_points_with_normal_item::invalidateOpenGLBuffers);
connect(d->normal_Slider, &QSlider::valueChanged, this, &Scene_points_with_normal_item::itemChanged);
}
else
{
connect(d->normal_Slider, &QSlider::sliderReleased, this, &Scene_points_with_normal_item::invalidateOpenGLBuffers);
connect(d->normal_Slider, &QSlider::sliderReleased, this, &Scene_points_with_normal_item::itemChanged);
}
sliderAction->setDefaultWidget(d->normal_Slider);
container->addAction(sliderAction);
menu->addMenu(container);
}
QMenu *container = new QMenu(tr("Points Size"));
QWidgetAction *sliderAction = new QWidgetAction(0);
connect(d->point_Slider, &QSlider::sliderPressed, this, &Scene_points_with_normal_item::pointSliderPressed);
connect(d->point_Slider, &QSlider::sliderReleased, this, &Scene_points_with_normal_item::pointSliderReleased);
connect(d->point_Slider, &QSlider::valueChanged, this, &Scene_points_with_normal_item::itemChanged);
sliderAction->setDefaultWidget(d->point_Slider);
container->addAction(sliderAction);
menu->addMenu(container);
d->actionDeleteSelection = menu->addAction(tr("Delete Selection"));
d->actionDeleteSelection->setObjectName("actionDeleteSelection");
connect(d->actionDeleteSelection, SIGNAL(triggered()),this, SLOT(deleteSelection()));
d->actionResetSelection = menu->addAction(tr("Reset Selection"));
d->actionResetSelection->setObjectName("actionResetSelection");
connect(d->actionResetSelection, SIGNAL(triggered()),this, SLOT(resetSelection()));
d->actionSelectDuplicatedPoints = menu->addAction(tr("Select duplicated points"));
d->actionSelectDuplicatedPoints->setObjectName("actionSelectDuplicatedPoints");
connect(d->actionSelectDuplicatedPoints, SIGNAL(triggered()),this, SLOT(selectDuplicates()));
menu->setProperty(prop_name, true);
}
if (isSelectionEmpty())
{
d->actionDeleteSelection->setDisabled(true);
d->actionResetSelection->setDisabled(true);
}
else
{
d->actionDeleteSelection->setDisabled(false);
d->actionResetSelection->setDisabled(false);
}
return menu;
}
void Scene_points_with_normal_item::setRenderingMode(RenderingMode m)
{
Scene_item::setRenderingMode(m);
if (rendering_mode==Splatting && (!d->m_points->are_radii_uptodate()))
{
computes_local_spacing(6); // default value = small
}
}
bool Scene_points_with_normal_item::has_normals() const { return d->m_points->has_normal_map(); }
void Scene_points_with_normal_item::invalidateOpenGLBuffers()
{
are_buffers_filled = false;
compute_bbox();
}
void Scene_points_with_normal_item::pointSliderPressed()
{
d->is_point_slider_moving = true;
}
void Scene_points_with_normal_item::pointSliderReleased()
{
d->is_point_slider_moving = false;
}
void Scene_points_with_normal_item::copyProperties(Scene_item *item)
{
Scene_points_with_normal_item* point_item = qobject_cast<Scene_points_with_normal_item*>(item);
if(!point_item)
return;
d->point_Slider->setValue(point_item->getPointSliderValue());
if(has_normals())
d->normal_Slider->setValue(point_item->getNormalSliderValue());
}
int Scene_points_with_normal_item::getNormalSliderValue()
{
return d->normal_Slider->value();
}
int Scene_points_with_normal_item::getPointSliderValue()
{
return d->point_Slider->value();
}
void Scene_points_with_normal_item::itemAboutToBeDestroyed(Scene_item *item)
{
Scene_item::itemAboutToBeDestroyed(item);
if(d && d->m_points && item == this)
{
delete d->m_points;
d->m_points = NULL;
}
}
void Scene_points_with_normal_item::
zoomToPosition(const QPoint &, CGAL::Three::Viewer_interface *viewer) const
{
if (point_set()->nb_selected_points() == 0)
return;
const qglviewer::Vec offset = static_cast<CGAL::Three::Viewer_interface*>(QGLViewer::QGLViewerPool().first())->offset();
// fit plane to triangles
Point_set points;
Bbox selected_points_bbox;
for(Point_set::const_iterator it = point_set()->first_selected();
it != point_set()->end();
++it)
{
points.insert(point_set()->point(*it));
selected_points_bbox += point_set()->point(*it).bbox();
}
Kernel::Plane_3 plane;
Kernel::Point_3 center_of_mass;
CGAL::linear_least_squares_fitting_3
(points.points().begin(),points.points().end(),plane, center_of_mass,
CGAL::Dimension_tag<0>());
Kernel::Vector_3 plane_normal= plane.orthogonal_vector();
plane_normal = plane_normal/(CGAL::sqrt(plane_normal.squared_length()));
Kernel::Point_3 centroid(center_of_mass.x() + offset.x,
center_of_mass.y() + offset.y,
center_of_mass.z() + offset.z);
qglviewer::Quaternion new_orientation(qglviewer::Vec(0,0,-1),
qglviewer::Vec(-plane_normal.x(), -plane_normal.y(), -plane_normal.z()));
double max_side = (std::max)((std::max)(selected_points_bbox.xmax() - selected_points_bbox.xmin(),
selected_points_bbox.ymax() - selected_points_bbox.ymin()),
selected_points_bbox.zmax() - selected_points_bbox.zmin());
//put the camera in way we are sure the longest side is entirely visible on the screen
//See openGL's frustum definition
double factor = max_side/(tan(viewer->camera()->aspectRatio()/
(viewer->camera()->fieldOfView()/2)));
Kernel::Point_3 new_pos = centroid + factor*plane_normal ;
viewer->camera()->setSceneCenter(qglviewer::Vec(centroid.x(),
centroid.y(),
centroid.z()));
viewer->moveCameraToCoordinates(QString("%1 %2 %3 %4 %5 %6 %7").arg(new_pos.x())
.arg(new_pos.y())
.arg(new_pos.z())
.arg(new_orientation[0])
.arg(new_orientation[1])
.arg(new_orientation[2])
.arg(new_orientation[3]));
}
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