Andreas Gaeb: fix #222 (JSBSIm reset problems)

[flightgear.git] / src / FDM / JSBSim / models / propulsion / FGThruster.h

diff --git a/src/FDM/JSBSim/models/propulsion/FGThruster.h b/src/FDM/JSBSim/models/propulsion/FGThruster.h
index 7ab74a8758c18cdfe9ff10745b1645a57178424a..118005f5a408b0498619efcf6c82230cb7197b8d 100644 (file)
--- a/src/FDM/JSBSim/models/propulsion/FGThruster.h
+++ b/src/FDM/JSBSim/models/propulsion/FGThruster.h
@@ -4,7 +4,7 @@
  Author:       Jon S. Berndt
  Date started: 08/23/00
 
- ------------- Copyright (C) 2000  Jon S. Berndt (jsb@hal-pc.org) -------------
+ ------------- Copyright (C) 2000  Jon S. Berndt (jon@jsbsim.org) -------------
 
  This program is free software; you can redistribute it and/or modify it under
  the terms of the GNU Lesser General Public License as published by the Free Software
@@ -39,16 +39,14 @@ INCLUDES
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
 #include "FGForce.h"
-#include <input_output/FGXMLElement.h>
-#include <input_output/FGPropertyManager.h>
-#include <math/FGColumnVector3.h>
+#include "math/FGColumnVector3.h"
 #include <string>
 
 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 DEFINITIONS
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
-#define ID_THRUSTER "$Id$"
+#define ID_THRUSTER "$Id: FGThruster.h,v 1.15 2009/10/24 22:59:30 jberndt Exp $"
 
 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 FORWARD DECLARATIONS
@@ -56,13 +54,27 @@ FORWARD DECLARATIONS
 
 namespace JSBSim {
 
+class Element;
+class FGPropertyManager;
+
 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 CLASS DOCUMENTATION
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
 
 /** Base class for specific thrusting devices such as propellers, nozzles, etc.
+
+<h3>reverser angle:</h3>
+
+    "Reverser angle" as used here is a way to manipulate the thrust vector,
+    along the thrust axis ONLY, during run time.  This should not be confused
+    with a thrust vectoring nozzle.  The angle is defined in radians, and is
+    used thus:  Final_thrust = cosine( reverser_angle ) * unmodified_thrust.  
+    Therefore a reverser angle of 0 results in no change, and a reverser angle
+    of 3.14 (pi) results in a completely reversed thrust vector.  An angle of
+    1.57 (pi/2) results in no thrust at all.
+ 
     @author Jon Berndt
-    @version $Id$
+    @version $Id: FGThruster.h,v 1.15 2009/10/24 22:59:30 jberndt Exp $
     */
 
 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -88,12 +100,12 @@ public:
   virtual void SetRPM(double rpm) {};
   virtual double GetPowerRequired(void) {return 0.0;}
   virtual void SetdeltaT(double dt) {deltaT = dt;}
-  double GetThrust(void) {return Thrust;}
+  double GetThrust(void) const {return Thrust;}
   eType GetType(void) {return Type;}
   string GetName(void) {return Name;}
   void SetReverserAngle(double angle) {ReverserAngle = angle;}
   double GetReverserAngle(void) const {return ReverserAngle;}
-  virtual double GetRPM(void) { return 0.0; };
+  virtual double GetRPM(void) const { return 0.0; };
   double GetGearRatio(void) {return GearRatio; }
   virtual string GetThrusterLabels(int id, string delimeter);
   virtual string GetThrusterValues(int id, string delimeter);