+ void clear();
+ inline void set_view( const int v ) { current = v; }
+ void add_view( FGViewer * v );
+
+ // copies current offset settings to current-view path...
+ void copyToCurrent ();
+
+private:
+
+ list<const char*> tied_props;
+
+ double axis_long;
+ double axis_lat;
+
+ void do_axes ();
+
+ // callbacks in manager to access viewer methods
+ double getViewHeadingOffset_deg () const;
+ void setViewHeadingOffset_deg (double offset);
+ double getViewGoalHeadingOffset_deg () const;
+ void setViewGoalHeadingOffset_deg (double offset);
+ double getViewPitchOffset_deg () const;
+ void setViewPitchOffset_deg (double tilt);
+ double getGoalViewPitchOffset_deg () const;
+ void setGoalViewRollOffset_deg (double tilt);
+ double getViewRollOffset_deg () const;
+ void setViewRollOffset_deg (double tilt);
+ double getGoalViewRollOffset_deg () const;
+ void setGoalViewPitchOffset_deg (double tilt);
+ double getViewXOffset_m () const;
+ void setViewXOffset_m (double x);
+ double getViewYOffset_m () const;
+ void setViewYOffset_m (double y);
+ double getViewZOffset_m () const;
+ void setViewZOffset_m (double z);
+ double getViewTargetXOffset_m () const;
+ void setViewTargetXOffset_m (double x);
+ double getViewTargetYOffset_m () const;
+ void setViewTargetYOffset_m (double y);
+ double getViewTargetZOffset_m () const;
+ void setViewTargetZOffset_m (double z);
+ double getFOV_deg () const;
+ void setFOV_deg (double fov);
+ double getARM_deg () const; // Aspect Ratio Multiplier
+ void setARM_deg (double fov);
+ double getNear_m () const;
+ void setNear_m (double near_m);
+ void setViewAxisLong (double axis);
+ void setViewAxisLat (double axis);
+ int getView () const;
+ void setView (int newview);
+
+// quaternion accessors, for debugging:
+ double getCurrentViewOrientation_w() const;
+ double getCurrentViewOrientation_x() const;
+ double getCurrentViewOrientation_y() const;
+ double getCurrentViewOrientation_z() const;
+ double getCurrentViewOrOffset_w() const;
+ double getCurrentViewOrOffset_x() const;
+ double getCurrentViewOrOffset_y() const;
+ double getCurrentViewOrOffset_z() const;
+ double getCurrentViewFrame_w() const;
+ double getCurrentViewFrame_x() const;
+ double getCurrentViewFrame_y() const;
+ double getCurrentViewFrame_z() const;
+
+ bool stationary () const;
+
+ SGPropertyNode_ptr view_number;
+ vector<SGPropertyNode_ptr> config_list;
+ typedef std::vector<FGViewerPtr> viewer_list;
+ viewer_list views;
+ SGVec3d abs_viewer_position;
+
+ int current;
+ SGQuatd current_view_orientation, current_view_or_offset;
+
+ SGSoundMgr *smgr;
+