Fix: Add shortcut to rotate camera by 90degrees #14

library/private/camera_impl.h

@@ -45,6 +45,7 @@ class camera_impl : public camera
   vector3_t getViewUp() override;
   void getViewUp(vector3_t& up) override;
   camera& setViewAngle(const angle_deg_t& angle) override;
+  camera& rotateCamera(const angle_deg_t& angle) override;
   angle_deg_t getViewAngle() override;
   void getViewAngle(angle_deg_t& angle) override;
   camera& setState(const camera_state_t& state) override;

library/public/camera.h

@@ -44,6 +44,7 @@ class F3D_EXPORT camera
   virtual vector3_t getViewUp() = 0;
   virtual void getViewUp(vector3_t& up) = 0;
   virtual camera& setViewAngle(const angle_deg_t& angle) = 0;
+  virtual camera& rotateCamera(const angle_deg_t& angle) = 0;
   virtual angle_deg_t getViewAngle() = 0;
   virtual void getViewAngle(angle_deg_t& angle) = 0;
   virtual camera& setState(const camera_state_t& state) = 0;

library/src/camera_impl.cxx

@@ -109,6 +109,15 @@
   return *this;
 }
 
+//----------------------------------------------------------------------------
+camera& camera_impl::rotateCamera(const angle_deg_t& angle)
+{
+  vtkCamera* cam = this->GetVTKCamera();
+  cam->Roll(angle);
+  this->Internals->VTKRenderer->ResetCameraClippingRange();
+  return *this;
+}
+
 //----------------------------------------------------------------------------
 angle_deg_t camera_impl::getViewAngle()
 {

library/src/interactor_impl.cxx

@@ -323,6 +323,10 @@
         self->SetViewOrbit(ViewType::VT_FRONT, self);
         render = true;
         break;
+      case '2':
+        self->Window.getCamera().rotateCamera(90);
+        render = true;
+        break;
       case '3':
         self->SetViewOrbit(ViewType::VT_RIGHT, self);
         render = true;