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Add support for passing a CG offset (in inches) to an external FDM.

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curt 2003-11-13 03:10:09 +00:00
parent e6cd7a0ed7
commit a37515d7fe
1 changed files with 21 additions and 0 deletions
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21
src/FDM/ExternalPipe/ExternalPipe.cxx
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@ -118,6 +118,7 @@ void FGExternalPipe::init() {
double heading = fgGetDouble("/sim/presets/heading-deg");
double speed = fgGetDouble( "/sim/presets/airspeed-kt" );
double weight = fgGetDouble( "/sim/aircraft-weight-lbs" );
double cg_offset = fgGetDouble( "/sim/aircraft-cg-offset-inches" );
#ifdef HAVE_MKFIFO
@ -168,6 +169,14 @@ void FGExternalPipe::init() {
}
}
if ( cg_offset > -5.0 || cg_offset < 5.0 ) {
sprintf( cmd, "1aircraft-cg-offset-inches=%.2f", cg_offset );
result = write( pd1, cmd, strlen(cmd) );
if ( result == -1 ) {
SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
}
}
SG_LOG( SG_IO, SG_INFO, "before sending reset command." );
if( fgGetBool("/sim/presets/onground") ) {
@ -211,6 +220,18 @@ void FGExternalPipe::update( double dt ) {
}
last_weight = weight;
double cg_offset = fgGetDouble( "/sim/aircraft-cg-offset-inches" );
static double last_cg_offset = -9999.9;
if ( fabs( cg_offset - last_cg_offset ) > 0.01 ) {
char cmd[256];
sprintf( cmd, "1aircraft-cg-offset-inches=%.2f", cg_offset );
result = write( pd1, cmd, strlen(cmd) );
if ( result == -1 ) {
SG_LOG( SG_IO, SG_ALERT, "Write error to named pipe: " << fifo_name_1 );
}
}
last_cg_offset = cg_offset;
// Send control positions to remote fdm
length = sizeof(ctrls);
FGProps2NetCtrls( &ctrls, true, false );