--- /dev/null
+// External.cxx -- interface to the "External"-ly driven flight model
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#include "External.hxx"
+
+
+// Initialize the External flight model, dt is the time increment
+// for each subsequent iteration through the EOM
+int FGExternal::init( double dt ) {
+ // cout << "FGExternal::init()" << endl;
+
+ // set valid time for this record
+ stamp_time();
+
+ return 1;
+}
+
+
+// Run an iteration of the EOM. This is essentially a NOP here
+// because these values are getting filled in elsewhere based on
+// external input.
+int FGExternal::update( int multiloop ) {
+ // cout << "FGExternal::update()" << endl;
+
+ // double time_step = (1.0 / current_options.get_model_hz()) * multiloop;
+
+
+ return 1;
+}
--- /dev/null
+// External.hxx -- interface to the "External"-ly driven flight model
+//
+// Written by Curtis Olson, started November 1999.
+//
+// Copyright (C) 1999 Curtis L. Olson - curt@flightgear.org
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 2 of the
+// License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful, but
+// WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+// $Id$
+
+
+#ifndef _EXTERNAL_HXX
+#define _EXTERNAL_HXX
+
+
+#include "flight.hxx"
+
+
+class FGExternal: public FGInterface {
+
+public:
+ // reset flight params to a specific position
+ int init( double dt );
+
+ // update position based on inputs, positions, velocities, etc.
+ int update( int multiloop );
+};
+
+
+#endif // _EXTERNAL_HXX
#include <stdio.h>
#include <Debug/logstream.hxx>
-#include <FDM/External/external.hxx>
#include <FDM/LaRCsim/ls_interface.h>
#include <Include/fg_constants.h>
#include <Main/options.hxx>
#include <Math/fg_geodesy.hxx>
#include <Time/timestamp.hxx>
+#include "External.hxx"
#include "flight.hxx"
#include "JSBsim.hxx"
#include "LaRCsim.hxx"
}
-#if 0
-// Initialize the flight model parameters
-int fgFDMInit(int model, FGInterface& f, double dt) {
- double save_alt = 0.0;
-
- FG_LOG( FG_FLIGHT ,FG_INFO, "Initializing flight model" );
-
- base_fdm_state = f;
-
- if ( model == FGInterface::FG_SLEW ) {
- // fgSlewInit(dt);
-#ifndef __MWERKS__ // -dw- 04/22/99 JSB sim not ported yet
- } else if ( model == FGInterface::FG_JSBSIM ) {
- fgJSBsimInit(dt, f);
- fgJSBsim_2_FGInterface(base_fdm_state);
-#endif
- } else if ( model == FGInterface::FG_LARCSIM ) {
- // lets try to avoid really screwing up the LaRCsim model
- if ( base_fdm_state.get_Altitude() < -9000.0 ) {
- save_alt = base_fdm_state.get_Altitude();
- base_fdm_state.set_Altitude( 0.0 );
- }
-
- // translate FG to LaRCsim structure
- FGInterface_2_LaRCsim(base_fdm_state);
-
- // initialize LaRCsim
- fgLaRCsimInit(dt);
-
- FG_LOG( FG_FLIGHT, FG_INFO, "FG pos = " <<
- base_fdm_state.get_Latitude() );
-
- // translate LaRCsim back to FG structure
- fgLaRCsim_2_FGInterface(base_fdm_state);
-
- // but lets restore our original bogus altitude when we are done
- if ( save_alt < -9000.0 ) {
- base_fdm_state.set_Altitude( save_alt );
- }
- } else if ( model == FGInterface::FG_EXTERNAL ) {
- fgExternalInit(base_fdm_state);
- } else {
- FG_LOG( FG_FLIGHT, FG_WARN,
- "Unimplemented flight model == " << model );
- }
-
- // set valid time for this record
- base_fdm_state.stamp_time();
-
- f = base_fdm_state;
-
- return 1;
-}
-#endif
-
-
-#if 0
-// Run multiloop iterations of the flight model
-int fgFDMUpdate(int model, FGInterface& f, int multiloop, int time_offset) {
- double time_step, start_elev, end_elev;
-
- // printf("Altitude = %.2f\n", FG_Altitude * 0.3048);
-
- // set valid time for this record
- base_fdm_state.stamp_time();
-
- time_step = (1.0 / current_options.get_model_hz()) * multiloop;
- start_elev = base_fdm_state.get_Altitude();
-
- if ( model == FGInterface::FG_SLEW ) {
- // fgSlewUpdate(f, multiloop);
-#ifndef __MWERKS__ // -dw- 04/22/99 JSB sim not ported yet
- } else if ( model == FGInterface::FG_JSBSIM ) {
- fgJSBsimUpdate(base_fdm_state, multiloop);
- f = base_fdm_state;
-#endif
- } else if ( model == FGInterface::FG_LARCSIM ) {
- fgLaRCsimUpdate(base_fdm_state, multiloop);
- // extrapolate position based on actual time
- // f = extrapolate_fdm( base_fdm_state, time_offset );
- f = base_fdm_state;
- } else if ( model == FGInterface::FG_EXTERNAL ) {
- // fgExternalUpdate(f, multiloop);
- FGTimeStamp current;
- current.stamp();
- f = base_fdm_state;
- f.extrapolate( current - base_fdm_state.get_time_stamp() );
- } else {
- FG_LOG( FG_FLIGHT, FG_WARN,
- "Unimplemented flight model == " << model );
- }
-
- end_elev = base_fdm_state.get_Altitude();
-
- if ( time_step > 0.0 ) {
- // feet per second
- base_fdm_state.set_Climb_Rate( (end_elev - start_elev) / time_step );
- }
-
- return 1;
-}
-#endif
-
-
// Set the altitude (force)
void fgFDMForceAltitude(int model, double alt_meters) {
double sea_level_radius_meters;
projects / flightgear.git / commitdiff