mirror of https://github.com/CGAL/cgal
PCA demo: fit plane to vertices, edges and facets.
This commit is contained in:
Pierre Alliez
parent
17e6fbfae2
commit
c9b1327a19
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@ -2979,13 +2979,9 @@ Polytope_distance_d/test/Polytope_distance_d/zwick_bug.cpp -text
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Principal_component_analysis/demo/Principal_component_analysis/MainWindow.ui -text
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Principal_component_analysis/demo/Principal_component_analysis/PCA_demo.qrc -text
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Principal_component_analysis/demo/Principal_component_analysis/cleanup.bat eol=crlf
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Principal_component_analysis/demo/Principal_component_analysis/data/cylinder_iso1_locally_refined.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/cylinder_iso2.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/cylinder.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/cylinder_locally_refined.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/ellipsoid.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/mushroom-19v.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/mushroom-651v.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/mushroom-81v.off -text
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Principal_component_analysis/demo/Principal_component_analysis/data/mushroom.off -text
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Principal_component_analysis/demo/Principal_component_analysis/resources/about.html svneol=native#text/html
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Principal_component_analysis/doc_tex/Principal_component_analysis/examples.tex -text
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Principal_component_analysis/doc_tex/Principal_component_analysis/fit.eps -text svneol=unset#application/postscript
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@ -182,3 +182,27 @@ void MainWindow::on_actionCopy_snapshot_triggered()
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qb->setImage(snapshot);
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QApplication::restoreOverrideCursor();
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}
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void MainWindow::on_actionFit_triangles_triggered()
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{
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QApplication::setOverrideCursor(Qt::WaitCursor);
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m_pScene->fit_triangles();
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m_pViewer->update();
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QApplication::restoreOverrideCursor();
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}
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void MainWindow::on_actionFit_edges_triggered()
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{
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QApplication::setOverrideCursor(Qt::WaitCursor);
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m_pScene->fit_edges();
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m_pViewer->update();
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QApplication::restoreOverrideCursor();
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}
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void MainWindow::on_actionFit_vertices_triggered()
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{
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QApplication::setOverrideCursor(Qt::WaitCursor);
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m_pScene->fit_vertices();
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m_pViewer->update();
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QApplication::restoreOverrideCursor();
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}
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@ -47,7 +47,9 @@ public:
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// algorithm menu
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void on_actionRefine_loop_triggered();
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void on_actionFit_triangles_triggered();
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void on_actionFit_edges_triggered();
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void on_actionFit_vertices_triggered();
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// view menu
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void on_actionView_polyhedron_triggered();
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@ -10,7 +10,7 @@
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</rect>
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</property>
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<property name="windowTitle" >
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<string>CGAL - PCA tree demo</string>
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<string>CGAL - PCA demo</string>
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</property>
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<property name="windowIcon" >
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<iconset resource="PCA_demo.qrc" >
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@ -57,14 +57,11 @@
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<property name="title" >
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<string>Algorithms</string>
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</property>
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<widget class="QMenu" name="menuRefine" >
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<property name="title" >
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<string>Refine</string>
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</property>
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<addaction name="actionRefine_bisection" />
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<addaction name="actionRefine_loop" />
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</widget>
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<addaction name="menuRefine" />
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<addaction name="actionFit_edges" />
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<addaction name="actionFit_vertices" />
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<addaction name="actionFit_triangles" />
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<addaction name="separator" />
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<addaction name="actionRefine_loop" />
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</widget>
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<widget class="QMenu" name="menuEdit" >
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<property name="title" >
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@ -76,7 +73,6 @@
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<addaction name="menuFile" />
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<addaction name="menuEdit" />
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<addaction name="menuAlgorithms" />
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<addaction name="menuBenchmarks" />
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<addaction name="menuView" />
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</widget>
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<action name="actionQuit" >
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@ -225,6 +221,21 @@
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<string>Loop subdivision</string>
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</property>
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</action>
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<action name="actionFit_vertices" >
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<property name="text" >
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<string>Fit vertices</string>
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</property>
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</action>
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<action name="actionFit_edges" >
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<property name="text" >
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<string>Fit edges</string>
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</property>
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</action>
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<action name="actionFit_triangles" >
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<property name="text" >
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<string>Fit triangles</string>
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</property>
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</action>
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</widget>
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<customwidgets>
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<customwidget>
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@ -12,6 +12,10 @@
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#include <CGAL/IO/Polyhedron_iostream.h>
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#include <CGAL/Subdivision_method_3.h>
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#include <CGAL/centroid.h>
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#include <CGAL/linear_least_squares_fitting_3.h>
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#include "render_edges.h"
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Scene::Scene()
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@ -93,6 +97,26 @@ void Scene::draw()
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{
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if(m_view_polyhedron)
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draw_polyhedron();
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// draw plane
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::glColor3ub(255,0,0);
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::glBegin(GL_QUADS);
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Point o = m_plane.projection(m_centroid);
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Point a = o + normalize(m_plane.base1()) + normalize(m_plane.base2());
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Point b = o + normalize(m_plane.base1()) - normalize(m_plane.base2());
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Point c = o - normalize(m_plane.base1()) - normalize(m_plane.base2());
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Point d = o - normalize(m_plane.base1()) + normalize(m_plane.base2());
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::glVertex3d(a.x(),a.y(),a.z());
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::glVertex3d(b.x(),b.y(),b.z());
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::glVertex3d(c.x(),c.y(),c.z());
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::glVertex3d(d.x(),d.y(),d.z());
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::glEnd();
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}
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Vector Scene::normalize(const Vector& v)
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{
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return v / std::sqrt(v*v);
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}
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void Scene::draw_polyhedron()
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@ -124,3 +148,82 @@ void Scene::toggle_view_poyhedron()
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m_view_polyhedron = !m_view_polyhedron;
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}
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void Scene::fit_triangles()
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{
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std::cout << "Fit triangles...";
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std::list<Triangle> triangles;
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Polyhedron::Facet_iterator it;
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for(it = m_pPolyhedron->facets_begin();
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it != m_pPolyhedron->facets_end();
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it++)
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{
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Polyhedron::Halfedge_handle he = it->halfedge();
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const Point& a = he->vertex()->point();
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const Point& b = he->next()->vertex()->point();
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const Point& c = he->next()->next()->vertex()->point();
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Triangle triangle(a,b,c);
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triangles.push_back(triangle);
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}
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m_centroid = CGAL::centroid(triangles.begin(),triangles.end());
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CGAL::linear_least_squares_fitting_3(triangles.begin(),
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triangles.end(), m_line, CGAL::Dimension_tag<2>());
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CGAL::linear_least_squares_fitting_3(triangles.begin(),
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triangles.end(), m_plane, CGAL::Dimension_tag<2>());
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std::cout << "done" << std::endl;
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}
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void Scene::fit_edges()
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{
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std::cout << "Fit edges...";
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std::list<Segment> segments;
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Polyhedron::Edge_iterator he;
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for(he = m_pPolyhedron->edges_begin();
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he != m_pPolyhedron->edges_end();
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he++)
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{
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const Point& a = he->vertex()->point();
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const Point& b = he->opposite()->vertex()->point();
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Segment segment(a,b);
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segments.push_back(segment);
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}
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m_centroid = CGAL::centroid(segments.begin(),segments.end());
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CGAL::linear_least_squares_fitting_3(segments.begin(),
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segments.end(), m_line, CGAL::Dimension_tag<1>());
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CGAL::linear_least_squares_fitting_3(segments.begin(),
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segments.end(), m_plane, CGAL::Dimension_tag<1>());
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std::cout << "done" << std::endl;
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}
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void Scene::fit_vertices()
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{
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std::cout << "Fit vertices...";
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std::list<Point> points;
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Polyhedron::Vertex_iterator v;
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for(v = m_pPolyhedron->vertices_begin();
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v != m_pPolyhedron->vertices_end();
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v++)
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{
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const Point& p = v->point();
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points.push_back(p);
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}
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m_centroid = CGAL::centroid(points.begin(),points.end());
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CGAL::linear_least_squares_fitting_3(points.begin(),
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points.end(), m_line, CGAL::Dimension_tag<0>());
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CGAL::linear_least_squares_fitting_3(points.begin(),
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points.end(), m_plane, CGAL::Dimension_tag<0>());
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std::cout << "done" << std::endl;
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}
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@ -7,7 +7,6 @@
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#include "types.h"
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class Scene
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{
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public:
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@ -25,9 +24,13 @@ public:
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private:
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// member data
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Bbox m_bbox;
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Line m_line;
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Plane m_plane;
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Point m_centroid;
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Polyhedron *m_pPolyhedron;
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private:
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// view options
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bool m_view_polyhedron;
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public:
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// file menu
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@ -36,14 +39,22 @@ public:
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// toggle view options
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void toggle_view_poyhedron();
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// view options
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bool m_view_polyhedron;
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// algorithms
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Vector normalize(const Vector& v);
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// refinement
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void refine_loop();
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void fit_edges();
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void fit_vertices();
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void fit_triangles();
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// drawing
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// rendering
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void draw_polyhedron();
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private:
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}; // end class Scene
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@ -1,54 +0,0 @@
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OFF
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|
||||
3 39 5 48
|
||||
3 27 9 24
|
||||
3 45 5 23
|
||||
3 36 11 10
|
||||
3 37 12 11
|
||||
3 40 13 12
|
||||
3 38 14 13
|
||||
3 39 10 14
|
||||
3 58 15 29
|
||||
3 56 3 68
|
||||
3 20 16 32
|
||||
3 62 4 74
|
||||
3 65 17 54
|
||||
3 59 17 75
|
||||
3 21 18 34
|
||||
3 34 18 22
|
||||
3 30 17 19
|
||||
3 42 0 72
|
||||
3 16 20 55
|
||||
3 55 20 66
|
||||
3 18 21 64
|
||||
3 64 21 76
|
||||
3 63 30 79
|
||||
3 63 22 18
|
||||
3 57 19 23
|
||||
3 69 23 5
|
||||
3 41 24 71
|
||||
3 71 24 9
|
||||
3 44 25 78
|
||||
3 25 7 51
|
||||
3 61 26 73
|
||||
3 73 26 6
|
||||
3 27 3 8
|
||||
3 68 3 27
|
||||
3 53 28 31
|
||||
3 54 17 33
|
||||
3 29 0 42
|
||||
3 41 0 29
|
||||
3 79 30 43
|
||||
3 30 19 57
|
||||
3 60 31 35
|
||||
3 28 2 31
|
||||
3 32 3 56
|
||||
3 44 3 32
|
||||
3 33 2 28
|
||||
3 59 18 35
|
||||
3 34 4 62
|
||||
3 61 4 34
|
||||
3 35 2 33
|
||||
3 31 2 35
|
||||
3 36 5 9
|
||||
3 48 5 36
|
||||
3 37 9 8
|
||||
3 47 9 37
|
||||
3 38 7 6
|
||||
3 50 7 38
|
||||
3 39 6 5
|
||||
3 49 6 39
|
||||
3 40 8 7
|
||||
3 46 8 40
|
||||
3 41 20 24
|
||||
3 66 20 41
|
||||
3 70 29 42
|
||||
3 23 19 42
|
||||
3 43 1 77
|
||||
3 30 1 43
|
||||
3 44 21 25
|
||||
3 76 21 44
|
||||
3 45 0 9
|
||||
3 72 0 45
|
||||
3 46 12 37
|
||||
3 40 12 46
|
||||
3 47 11 36
|
||||
3 37 11 47
|
||||
3 48 10 39
|
||||
3 36 10 48
|
||||
3 49 14 38
|
||||
3 39 14 49
|
||||
3 50 13 40
|
||||
3 38 13 50
|
||||
3 78 25 51
|
||||
3 8 3 51
|
||||
3 52 6 26
|
||||
3 5 6 52
|
||||
3 53 16 67
|
||||
3 31 16 53
|
||||
3 54 28 15
|
||||
3 33 28 54
|
||||
3 67 16 55
|
||||
3 29 15 55
|
||||
3 56 20 32
|
||||
3 24 20 56
|
||||
3 57 1 30
|
||||
3 57 23 69
|
||||
3 58 19 17
|
||||
3 58 29 70
|
||||
3 59 33 17
|
||||
3 35 33 59
|
||||
3 60 18 80
|
||||
3 35 18 60
|
||||
3 61 22 26
|
||||
3 34 22 61
|
||||
3 62 21 34
|
||||
3 25 21 62
|
||||
3 63 17 30
|
||||
3 75 17 63
|
||||
3 80 18 64
|
||||
3 32 16 64
|
||||
3 65 15 58
|
||||
3 54 15 65
|
||||
3 66 29 55
|
||||
3 41 29 66
|
||||
3 67 15 53
|
||||
3 55 15 67
|
||||
3 68 24 56
|
||||
3 27 24 68
|
||||
3 69 1 57
|
||||
3 5 1 69
|
||||
3 70 19 58
|
||||
3 42 19 70
|
||||
3 71 0 41
|
||||
3 9 0 71
|
||||
3 72 23 42
|
||||
3 45 23 72
|
||||
3 73 4 61
|
||||
3 6 4 73
|
||||
3 74 25 62
|
||||
3 7 25 74
|
||||
3 75 18 59
|
||||
3 63 18 75
|
||||
3 76 32 64
|
||||
3 44 32 76
|
||||
3 77 26 43
|
||||
3 52 26 77
|
||||
3 78 3 44
|
||||
3 51 3 78
|
||||
3 79 22 63
|
||||
3 43 22 79
|
||||
3 80 16 60
|
||||
3 64 16 80
|
||||
|
||||
|
|
@ -1,40 +0,0 @@
|
|||
OFF
|
||||
15 23 37
|
||||
0.454199 0.0916024 -2.10744e-018
|
||||
-5e-008 0.0916024 -0.454199
|
||||
-5e-008 1 -2.10744e-018
|
||||
-5e-008 0.0916024 0.454199
|
||||
-0.454199 0.0916024 -2.10744e-018
|
||||
0.0749192 0.0916024 -0.230578
|
||||
-0.196141 0.0916024 -0.142505
|
||||
-0.196141 0.0916024 0.142505
|
||||
0.0749192 0.0916024 0.230578
|
||||
0.242444 0.0916024 -2.10744e-018
|
||||
0.0749192 -0.30407 -0.230578
|
||||
0.242444 -0.30407 -2.10744e-018
|
||||
0.0749192 -0.30407 0.230578
|
||||
-0.196141 -0.30407 0.142505
|
||||
-0.196141 -0.30407 -0.142505
|
||||
3 0 1 2
|
||||
3 3 0 2
|
||||
3 4 3 2
|
||||
3 1 4 2
|
||||
3 4 7 3
|
||||
3 7 8 3
|
||||
3 3 8 9
|
||||
3 0 9 5
|
||||
3 7 4 6
|
||||
3 4 1 6
|
||||
3 5 6 1
|
||||
3 5 9 11
|
||||
3 9 8 12
|
||||
3 8 7 13
|
||||
3 7 6 14
|
||||
3 6 5 10
|
||||
3 9 0 3
|
||||
3 5 1 0
|
||||
3 11 10 5
|
||||
3 12 11 9
|
||||
3 13 12 8
|
||||
3 14 13 7
|
||||
3 10 14 6
|
||||
|
|
@ -2,19 +2,17 @@
|
|||
#define PCA_DEMO_TYPES_H
|
||||
|
||||
#include <CGAL/Simple_cartesian.h>
|
||||
#include <CGAL/Polyhedron_3.h>
|
||||
#include <boost/iterator/transform_iterator.hpp>
|
||||
|
||||
typedef CGAL::Simple_cartesian<double> Kernel; // fastest in experiments
|
||||
|
||||
typedef CGAL::Simple_cartesian<double> Kernel;
|
||||
typedef Kernel::FT FT;
|
||||
typedef Kernel::Ray_3 Ray;
|
||||
typedef Kernel::Line_3 Line;
|
||||
typedef Kernel::Point_3 Point;
|
||||
typedef Kernel::Plane_3 Plane;
|
||||
typedef Kernel::Vector_3 Vector;
|
||||
typedef Kernel::Segment_3 Segment;
|
||||
typedef Kernel::Triangle_3 Triangle;
|
||||
|
||||
#include <CGAL/Polyhedron_3.h>
|
||||
typedef CGAL::Polyhedron_3<Kernel> Polyhedron;
|
||||
|
||||
#endif // PCA_DEMO_TYPES_H
|
||||
|
|
|
|||
Loading…
Reference in New Issue