+//
+// fgRunway_instr This class is responsible for rendering the active runway
+// in the hud (if visible).
+class runway_instr : public instr_item
+{
+private:
+ void boundPoint(const sgdVec3& v, sgdVec3& m);
+ bool boundOutsidePoints(sgdVec3& v, sgdVec3& m);
+ bool drawLine(const sgdVec3& a1, const sgdVec3& a2, const sgdVec3& p1, const sgdVec3& p2);
+ void drawArrow();
+ bool get_active_runway(FGRunway& rwy);
+ void get_rwy_points(sgdVec3 *points);
+ void setLineWidth(void);
+
+ sgdVec3 points3d[6],points2d[6];
+ double mm[16],pm[16], arrowScale, arrowRad, lnScale, scaleDist, default_pitch, default_heading;
+ GLint view[4];
+ FGRunway runway;
+ FGViewer* cockpit_view;
+ unsigned short stippleOut,stippleCen;
+ bool drawIA,drawIAAlways;
+ RECT location;
+ POINT center;
+
+public:
+ runway_instr( int x,
+ int y,
+ int width,
+ int height,
+ float scale_data,
+ bool working = true);
+
+ virtual void draw( void ); // Required method in base class
+ void setArrowRotationRadius(double radius);
+ void setArrowScale(double scale); // Scales the runway indication arrow
+ void setDrawArrow(bool draw); // Draws arrow when runway is not visible in HUD if draw=true
+ void setDrawArrowAlways(bool draw); //Always draws arrow if draw=true;
+ void setLineScale(double scale); //Sets the maximum line scale
+ void setScaleDist(double dist_nm); //Sets the distance where to start scaling the lines
+ void setStippleOutline(unsigned short stipple); //Sets the stipple pattern of the outline of the runway
+ void setStippleCenterline(unsigned short stipple); //Sets the stipple patter of the center line of the runway
+};
+
+