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Add support for "offset" tag ... (value = raw * factor + offset)

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curt 2005-03-10 19:06:30 +00:00
parent 2e308fe928
commit ebfaccd95b
1 changed files with 33 additions and 0 deletions
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33
src/Network/ATC-Inputs.cxx
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@ -268,6 +268,18 @@ static double scale( int min, int max, int value ) {
}
static double clamp( double min, double max, double value ) {
double result = value;
if ( result < min ) result = min;
if ( result > max ) result = max;
// cout << result << endl;
return result;
}
static int tony_magic( int raw, int obs[3] ) {
int result = 0;
@ -407,6 +419,7 @@ bool FGATCInput::do_analog_in() {
int min = 0;
int max = 1023;
int deadband = 0;
float offset = 0.0;
float factor = 1.0;
if ( cname == "channel" ) {
SGPropertyNode *prop;
@ -445,6 +458,10 @@ bool FGATCInput::do_analog_in() {
if ( prop != NULL ) {
deadband = prop->getIntValue();
}
prop = child->getChild( "offset" );
if ( prop != NULL ) {
offset = prop->getFloatValue();
}
prop = child->getChild( "factor" );
if ( prop != NULL ) {
factor = prop->getFloatValue();
@ -472,6 +489,14 @@ bool FGATCInput::do_analog_in() {
scaled_value = scale( min, max, raw_value );
}
scaled_value *= factor;
scaled_value += offset;
// final sanity clamp
if ( center >= 0 ) {
scaled_value = clamp( -1.0, 1.0, scaled_value );
} else {
scaled_value = clamp( 0.0, 1.0, scaled_value );
}
// update the property tree values
for ( j = 0; j < (int)output_nodes.size(); ++j ) {
@ -488,6 +513,14 @@ bool FGATCInput::do_analog_in() {
scaled_value = scale( min, max, raw_value );
}
scaled_value *= factor;
scaled_value += offset;
// final sanity clamp
if ( center >= 0 ) {
scaled_value = clamp( -1.0, 1.0, scaled_value );
} else {
scaled_value = clamp( 0.0, 1.0, scaled_value );
}
// update the property tree values
for ( j = 0; j < (int)output_nodes.size(); ++j ) {