1 /*****************************************************************************
3 Header: FGTurbulenceItem.h
4 Author: Christian Mayer
7 -------- Copyright (C) 1999 Christian Mayer (fgfs@christianmayer.de) --------
9 This program is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free Software
11 Foundation; either version 2 of the License, or (at your option) any later
14 This program is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
16 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
19 You should have received a copy of the GNU General Public License along with
20 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21 Place - Suite 330, Boston, MA 02111-1307, USA.
23 Further information about the GNU General Public License can also be found on
24 the world wide web at http://www.gnu.org.
26 FUNCTIONAL DESCRIPTION
27 ------------------------------------------------------------------------------
28 turbulence item that gets stored in the micro weather class
31 ------------------------------------------------------------------------------
32 28.05.1999 Christian Mayer Created
33 16.06.1999 Durk Talsma Portability for Linux
34 20.06.1999 Christian Mayer added lots of consts
35 11.10.1999 Christian Mayer changed set<> to map<> on Bernie Bright's
37 19.10.1999 Christian Mayer change to use PLIB's sg instead of Point[2/3]D
38 and lots of wee code cleaning
39 21.12.1999 Christian Mayer Added a fix for compatibility to gcc 2.8 which
40 suggested by Oliver Delise
41 *****************************************************************************/
43 /****************************************************************************/
45 /****************************************************************************/
46 #ifndef FGTurbulenceItem_H
47 #define FGTurbulenceItem_H
49 /****************************************************************************/
51 /****************************************************************************/
57 #include <simgear/compiler.h>
65 #include "FGWeatherDefs.h"
67 /****************************************************************************/
69 /****************************************************************************/
70 class FGTurbulenceItem;
71 FGTurbulenceItem operator-(const FGTurbulenceItem& arg);
73 #if ( __GNU_C__ == 2 && __GNU_MAJOR__ < 9 )
74 # define const_sgVec3 const sgVec3
76 # define const_sgVec3 const sgVec3&
79 /****************************************************************************/
80 /* CLASS DECLARATION */
81 /****************************************************************************/
82 class FGTurbulenceItem
89 FGTurbulenceItem(const_sgVec3 v) { sgCopyVec3(value, v);}
90 FGTurbulenceItem() { sgZeroVec3(value); }
92 void getValue(sgVec3 ret) const { sgCopyVec3(ret, value); };
93 const sgVec3* getValue(void) const { return &value; };
95 WeatherPrecision x(void) const { return value[0]; };
96 WeatherPrecision y(void) const { return value[1]; };
97 WeatherPrecision z(void) const { return value[2]; };
99 void x(const WeatherPrecision x) { value[0] = x; };
100 void y(const WeatherPrecision y) { value[1] = y; };
101 void z(const WeatherPrecision z) { value[2] = z; };
103 FGTurbulenceItem& operator*= (const WeatherPrecision arg);
104 FGTurbulenceItem& operator+= (const FGTurbulenceItem& arg);
105 FGTurbulenceItem& operator-= (const FGTurbulenceItem& arg);
107 friend FGTurbulenceItem operator-(const FGTurbulenceItem& arg);
110 inline FGTurbulenceItem& FGTurbulenceItem::operator*= (const WeatherPrecision arg)
112 sgScaleVec3(value, arg);
116 inline FGTurbulenceItem& FGTurbulenceItem::operator+= (const FGTurbulenceItem& arg)
118 sgAddVec3(value, *arg.getValue());
122 inline FGTurbulenceItem& FGTurbulenceItem::operator-= (const FGTurbulenceItem& arg)
124 sgSubVec3(value, *arg.getValue());
128 inline FGTurbulenceItem operator-(const FGTurbulenceItem& arg)
132 sgNegateVec3(temp, *arg.getValue());
134 return FGTurbulenceItem(temp);
137 /****************************************************************************/
138 #endif /*FGTurbulenceItem_H*/