X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FFDM%2FJSBSim%2FFGJSBBase.h;h=2049a3cadb5ec2af5e8d4e76ae164e4d80bb7bf8;hb=1cf207e0540712d3344c48f936a7aade3c5c2797;hp=6147248e68aba3a66f49a75d8dcaea580fb2f562;hpb=4dbedefb326b4c04614d904922936c074125b8f4;p=flightgear.git diff --git a/src/FDM/JSBSim/FGJSBBase.h b/src/FDM/JSBSim/FGJSBBase.h index 6147248e6..2049a3cad 100644 --- a/src/FDM/JSBSim/FGJSBBase.h +++ b/src/FDM/JSBSim/FGJSBBase.h @@ -4,7 +4,7 @@ Author: Jon S. Berndt Date started: 07/01/01 - ------------- Copyright (C) 2001 Jon S. Berndt (jsb@hal-pc.org) ------------- + ------------- Copyright (C) 2001 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 @@ -39,61 +39,31 @@ INCLUDES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/ #include +#include +#include +#include -#ifdef FGFS -# include -# include -# include -# include STL_STRING - -SG_USING_STD(string); - -# ifndef M_PI -# include -# define M_PI SG_PI -# endif - -#else // JSBSim section - -# include -# include -# if defined(sgi) && !defined(__GNUC__) -# include -# else -# include -# endif - -using std::string; - -# if defined(_MSC_VER) && _MSC_VER <= 1200 -# ifndef max -# define max(a,b) (((a) > (b)) ? (a) : (b)) -# endif - -# ifndef min -# define min(a,b) (((a) < (b)) ? (a) : (b)) -# endif -# else - -using std::fabs; - -# endif - -# ifndef M_PI -# define M_PI 3.14159265358979323846 -# endif +#include "input_output/string_utilities.h" +#ifndef M_PI +# define M_PI 3.14159265358979323846 #endif -#if !defined(WIN32) || defined(__GNUC__) || (defined(_MSC_VER) && (_MSC_VER >= 1300)) -using std::max; +#if defined(_MSC_VER) && (_MSC_VER < 1300) +namespace std +{ + template inline T max(const T& a, const T& b) + { + return (a > b) ? a : b; + } +} #endif /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% DEFINITIONS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/ -#define ID_JSBBASE "$Id$" +#define ID_JSBBASE "$Id: FGJSBBase.h,v 1.30 2010/07/01 23:13:19 jberndt Exp $" /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% FORWARD DECLARATIONS @@ -109,7 +79,7 @@ CLASS DOCUMENTATION * This class provides universal constants, utility functions, messaging * functions, and enumerated constants to JSBSim. @author Jon S. Berndt - @version $Id$ + @version $Id: FGJSBBase.h,v 1.30 2010/07/01 23:13:19 jberndt Exp $ */ /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% @@ -125,16 +95,38 @@ public: ~FGJSBBase() {}; /// JSBSim Message structure - typedef struct Msg { + class Message { + public: unsigned int fdmId; unsigned int messageId; - string text; - string subsystem; + std::string text; + std::string subsystem; enum mType {eText, eInteger, eDouble, eBool} type; bool bVal; int iVal; double dVal; - } Message; + }; + + /// First order, (low pass / lag) filter + class Filter { + double prev_in; + double prev_out; + double ca; + double cb; + public: Filter(void) {} + public: Filter(double coeff, double dt) { + prev_in = prev_out = 0.0; + double denom = 2.0 + coeff*dt; + ca = coeff*dt/denom; + cb = (2.0 - coeff*dt)/denom; + } + public: double execute(double in) { + double out = (in + prev_in)*ca + prev_out*cb; + prev_in = in; + prev_out = out; + return out; + } + }; ///@name JSBSim console output highlighting terms. //@{ @@ -167,37 +159,41 @@ public: /** Places a Message structure on the Message queue. @param msg pointer to a Message structure @return pointer to a Message structure */ - Message* PutMessage(Message* msg); + void PutMessage(const Message& msg); /** Creates a message with the given text and places it on the queue. @param text message text @return pointer to a Message structure */ - Message* PutMessage(const string& text); + void PutMessage(const std::string& text); /** Creates a message with the given text and boolean value and places it on the queue. @param text message text @param bVal boolean value associated with the message @return pointer to a Message structure */ - Message* PutMessage(const string& text, bool bVal); + void PutMessage(const std::string& text, bool bVal); /** Creates a message with the given text and integer value and places it on the queue. @param text message text @param iVal integer value associated with the message @return pointer to a Message structure */ - Message* PutMessage(const string& text, int iVal); + void PutMessage(const std::string& text, int iVal); /** Creates a message with the given text and double value and places it on the queue. @param text message text @param dVal double value associated with the message @return pointer to a Message structure */ - Message* PutMessage(const string& text, double dVal); + void PutMessage(const std::string& text, double dVal); /** Reads the message on the queue (but does not delete it). - @return pointer to a Message structure (or NULL if no mesage) */ - Message* ReadMessage(void); + @return 1 if some messages */ + int SomeMessages(void); /** Reads the message on the queue and removes it from the queue. - @return pointer to a Message structure (or NULL if no mesage) */ - Message* ProcessMessage(void); + This function also prints out the message.*/ + void ProcessMessage(void); + /** Reads the next message on the queue and removes it from the queue. + This function also prints out the message. + @return a pointer to the message, or NULL if there are no messages.*/ + Message* ProcessNextMessage(void); //@} /** Returns the version number of JSBSim. * @return The version number of JSBSim. */ - string GetVersion(void) {return JSBSim_version;} + std::string GetVersion(void) {return JSBSim_version;} /// Disables highlighting in the console output. void disableHighLighting(void); @@ -211,6 +207,13 @@ public: return 1.8*kelvin - 459.4; } + /** Converts from degrees Celsius to degrees Rankine. + * @param celsius The temperature in degrees Celsius. + * @return The temperature in Rankine. */ + static double CelsiusToRankine (double celsius) { + return celsius * 1.8 + 491.67; + } + /** Converts from degrees Rankine to degrees Celsius. * @param rankine The temperature in degrees Rankine. * @return The temperature in Celsius. */ @@ -218,6 +221,13 @@ public: return (rankine - 491.67)/1.8; } + /** Converts from degrees Kelvin to degrees Rankine. + * @param kelvin The temperature in degrees Kelvin. + * @return The temperature in Rankine. */ + static double KelvinToRankine (double kelvin) { + return kelvin * 1.8; + } + /** Converts from degrees Rankine to degrees Kelvin. * @param rankine The temperature in degrees Rankine. * @return The temperature in Kelvin. */ @@ -239,13 +249,27 @@ public: return celsius * 1.8 + 32.0; } + /** Converts from degrees Celsius to degrees Kelvin + * @param celsius The temperature in degrees Celsius. + * @return The temperature in Kelvin. */ + static double CelsiusToKelvin (double celsius) { + return celsius + 273.15; + } + + /** Converts from degrees Kelvin to degrees Celsius + * @param celsius The temperature in degrees Kelvin. + * @return The temperature in Celsius. */ + static double KelvinToCelsius (double kelvin) { + return kelvin - 273.15; + } + /** Finite precision comparison. @param a first value to compare @param b second value to compare @return if the two values can be considered equal up to roundoff */ static bool EqualToRoundoff(double a, double b) { double eps = 2.0*DBL_EPSILON; - return fabs(a - b) <= eps*max(fabs(a), fabs(b)); + return std::fabs(a - b) <= eps*std::max(std::fabs(a), std::fabs(b)); } /** Finite precision comparison. @@ -254,7 +278,7 @@ public: @return if the two values can be considered equal up to roundoff */ static bool EqualToRoundoff(float a, float b) { float eps = 2.0*FLT_EPSILON; - return fabs(a - b) <= eps*max(fabs(a), fabs(b)); + return std::fabs(a - b) <= eps*std::max(std::fabs(a), std::fabs(b)); } /** Finite precision comparison. @@ -272,13 +296,21 @@ public: static bool EqualToRoundoff(double a, float b) { return EqualToRoundoff((float)a, b); } + + /** Constrain a value between a minimum and a maximum value. + */ + static double Constrain(double min, double value, double max) { + return valuemax?(max):(value)); + } + + static double sign(double num) {return num>=0.0?1.0:-1.0;} protected: static Message localMsg; - static std::queue Messages; + static std::queue Messages; - void Debug(int from) {}; + void Debug(int) {}; static unsigned int messageId; @@ -291,12 +323,21 @@ protected: static const double ktstofps; static const double inchtoft; static const double in3tom3; + static const double m3toft3; + static const double inhgtopa; + static const double fttom; static double Reng; // Specific Gas Constant,ft^2/(sec^2*R) static const double SHRatio; static const double lbtoslug; static const double slugtolb; - static const string needed_cfg_version; - static const string JSBSim_version; + static const double kgtolb; + static const double kgtoslug; + static const std::string needed_cfg_version; + static const std::string JSBSim_version; + + static std::string CreateIndexedPropertyName(const std::string& Property, int index); + + static double GaussianRandomNumber(void); public: /// Moments L, M, N