(WIP) addition of camera positions

Polyhedron/demo/Polyhedron/CGAL_demo/Viewer_interface.h

@@ -42,6 +42,7 @@ public:
 Q_SIGNALS:
   void selected(int);
   void requestContextMenu(QPoint global_pos);
+  void requestBasicPositions(Viewer_interface* viewer);
   void selectedPoint(double, double, double);
   void selectionRay(double, double, double, double, double, double);
 

Polyhedron/demo/Polyhedron/Camera_positions_list.cpp

@@ -27,6 +27,8 @@ Camera_positions_list::Camera_positions_list(QWidget* parent)
 void Camera_positions_list::setViewer(Viewer_interface* viewer)
 {
   m_viewer = viewer;
+  connect(viewer, SIGNAL(requestBasicPositions(Viewer_interface*)),
+            this, SLOT(setBasicPositions(Viewer_interface*)));
 }
 
 void Camera_positions_list::on_plusButton_pressed()
@@ -135,3 +137,107 @@ void Camera_positions_list::load(QString filename) {
   }
 }
 
+void Camera_positions_list::setBasicPositions(Viewer_interface* viewer)
+{
+  qglviewer::Vec posFront = qglviewer::Vec(0,0,viewer->sceneRadius()/(sin (viewer->camera()->fieldOfView()/2)));
+  qglviewer::Quaternion dirFront;
+  dirFront.setAxisAngle(qglviewer::Vec(0,1,0),0);
+   QString frontCoord = QString("%1 %2 %3 %4 %5 %6 %7")
+          .arg(posFront[0])
+          .arg(posFront[1])
+          .arg(posFront[2])
+          .arg(dirFront[0])
+          .arg(dirFront[1])
+          .arg(dirFront[2])
+          .arg(dirFront[3]);
+  addItem(tr("Front"),
+               frontCoord);
+  qglviewer::Vec posBack = posFront;
+  posBack.z *= -1;
+  qglviewer::Quaternion dirBack = dirFront;
+  dirBack.setAxisAngle(qglviewer::Vec(0,1,0),M_PI);
+
+  QString backCoord = QString("%1 %2 %3 %4 %5 %6 %7")
+          .arg(posBack[0])
+          .arg(posBack[1])
+          .arg(posBack[2])
+          .arg(dirBack[0])
+          .arg(dirBack[1])
+          .arg(dirBack[2])
+          .arg(dirBack[3]);
+  addItem(tr("Back"),backCoord);
+
+  qglviewer::Vec posTop = posFront;
+  posTop.y = posTop.z;
+  posTop.z *= 0;
+  qglviewer::Quaternion dirTop = dirFront;
+  dirTop.setAxisAngle(qglviewer::Vec(1,0,0),-M_PI_2);
+  QString topCoord = QString("%1 %2 %3 %4 %5 %6 %7")
+          .arg(posTop[0])
+          .arg(posTop[1])
+          .arg(posTop[2])
+          .arg(dirTop[0])
+          .arg(dirTop[1])
+          .arg(dirTop[2])
+          .arg(dirTop[3]);
+  addItem(tr("Top"),topCoord);
+  qglviewer::Vec posBot = posTop;
+  posBot.y *= -1;
+  qglviewer::Quaternion dirBot = dirFront;
+  dirBot.setAxisAngle(qglviewer::Vec(1,0,0),M_PI_2);
+  QString botCoord= QString("%1 %2 %3 %4 %5 %6 %7")
+          .arg(posBot[0])
+          .arg(posBot[1])
+          .arg(posBot[2])
+          .arg(dirBot[0])
+          .arg(dirBot[1])
+          .arg(dirBot[2])
+          .arg(dirBot[3]);
+  addItem(tr("Bottom"),botCoord);
+
+  qglviewer::Vec posRight = posFront;
+  posRight.x = posFront.z;
+  posRight.z *= 0;
+  qglviewer::Quaternion dirRight = dirFront;
+  dirRight.setAxisAngle(qglviewer::Vec(0,1,0),M_PI_2);
+  QString rightCoord = QString("%1 %2 %3 %4 %5 %6 %7")
+          .arg(posRight[0])
+          .arg(posRight[1])
+          .arg(posRight[2])
+          .arg(dirRight[0])
+          .arg(dirRight[1])
+          .arg(dirRight[2])
+          .arg(dirRight[3]);
+  addItem(tr("Right"),rightCoord);
+
+  qglviewer::Vec posLeft = posRight;
+  posLeft.x *= -1;
+  qglviewer::Quaternion dirLeft = dirFront;
+  dirLeft.setAxisAngle(qglviewer::Vec(0,1,0),-M_PI_2);
+  QString leftCoord = QString("%1 %2 %3 %4 %5 %6 %7")
+          .arg(posLeft[0])
+          .arg(posLeft[1])
+          .arg(posLeft[2])
+          .arg(dirLeft[0])
+          .arg(dirLeft[1])
+          .arg(dirLeft[2])
+          .arg(dirLeft[3]);
+  addItem(tr("Left"),leftCoord);
+  insertItem(tr("Left"),leftCoord);
+   insertItem(tr("Right"),rightCoord);
+   insertItem(tr("Bottom"),botCoord);
+   insertItem(tr("Top"),topCoord);
+   insertItem(tr("Back"),backCoord);
+   insertItem(tr("Front"), frontCoord);
+
+}
+
+void Camera_positions_list::insertItem(QString text, QString data)
+{
+    QStandardItem* item = new QStandardItem(text);
+
+    item->setData(data, Qt::UserRole);
+    m_model->insertRow(0, item);
+}
+
+

Polyhedron/demo/Polyhedron/Camera_positions_list.h

@@ -17,7 +17,9 @@ public:
 
 public Q_SLOTS:
   void load(QString filename);
+  void setBasicPositions(Viewer_interface*);
 protected Q_SLOTS:
+
   void on_plusButton_pressed();
   void on_minusButton_pressed();
   void on_upButton_pressed();
@@ -25,7 +27,7 @@ protected Q_SLOTS:
   void on_openButton_pressed();
   void on_saveButton_pressed();
   void on_clearButton_pressed();
-
+  void insertItem(QString text, QString data);
   void activatedRow(QModelIndex index);
 
 protected:

Polyhedron/demo/Polyhedron/Polyhedron_demo_camera_positions_plugin.cpp

@@ -36,8 +36,11 @@ private:
 
 void Polyhedron_demo_camera_positions_plugin::init(QMainWindow* mainWindow, Scene_interface*)
 {
+
   cpl = new Camera_positions_list(mainWindow);
-  cpl->setViewer(mainWindow->findChild<Viewer_interface*>("viewer"));
+  Viewer_interface* viewer = mainWindow->findChild<Viewer_interface*>("viewer");
+  cpl->setViewer(viewer);
+  cpl->setBasicPositions(viewer);
   mainWindow->addDockWidget(Qt::LeftDockWidgetArea, cpl);
 }
 

Polyhedron/demo/Polyhedron/Scene.cpp

@@ -51,13 +51,13 @@ Scene::Scene(QObject* parent)
 Scene::Item_id
 Scene::addItem(Scene_item* item)
 {
-
     Bbox bbox_before = bbox();
     m_entries.push_back(item);
     connect(item, SIGNAL(itemChanged()),
             this, SLOT(itemChanged()));
     if(bbox_before + item->bbox() != bbox_before)
 { Q_EMIT updated_bbox(); }
+    Q_EMIT requestBasicPositions();
     QAbstractListModel::beginResetModel();
     Q_EMIT updated();
     QAbstractListModel::endResetModel();

Polyhedron/demo/Polyhedron/Scene.h

@@ -158,6 +158,7 @@ Q_SIGNALS:
   void itemAboutToBeDestroyed(Scene_item*);
   void selectionRay(double, double, double, double, double, double);
   void selectionChanged(int i);
+  void requestBasicPositions();
 
 private Q_SLOTS:
   void setSelectionRay(double, double, double, double, double, double);

Polyhedron/demo/Polyhedron/Viewer.cpp

@@ -53,6 +53,7 @@ Viewer::Viewer(QWidget* parent, bool antialiasing)
   pickMatrix_[5]=1;
   pickMatrix_[10]=1;
   pickMatrix_[15]=1;
+  prev_radius = sceneRadius();
 }
 
 Viewer::~Viewer()
@@ -90,6 +91,7 @@ void Viewer::draw()
 {
   glEnable(GL_DEPTH_TEST);
   d->inFastDrawing = false;
+  testRadius();
   QGLViewer::draw();
   d->draw_aux(false, this);
 }
@@ -97,6 +99,7 @@ void Viewer::draw()
 void Viewer::fastDraw()
 {
   d->inFastDrawing = true;
+  testRadius();
   QGLViewer::fastDraw();
   d->draw_aux(false, this);
 }
@@ -374,3 +377,12 @@ void Viewer::endSelection(const QPoint& point)
     pickMatrix_[10]=1;
     pickMatrix_[15]=1;
 }
+
+void Viewer::testRadius()
+{
+    if(prev_radius != sceneRadius())
+    {
+        Q_EMIT Viewer_interface::requestBasicPositions(this);
+        prev_radius = sceneRadius();
+    }
+}

Polyhedron/demo/Polyhedron/Viewer.h

@@ -41,7 +41,6 @@ public Q_SLOTS:
   void setTwoSides(bool b);
 
   void turnCameraBy180Degres();
-
   QString dumpCameraCoordinates();
   bool moveCameraToCoordinates(QString, 
                                float animation_duration = 0.5f);
@@ -54,6 +53,8 @@ protected:
 
 protected:
   Viewer_impl* d;
+  double prev_radius;
+  void testRadius();
 }; // end class Viewer
 
 #endif // VIEWER_H