#include <Main/fg_props.hxx>
#include <Main/util.hxx>
+using std::string;
-VerticalSpeedIndicator::VerticalSpeedIndicator ()
- : _internal_pressure_inhg(29.92)
+VerticalSpeedIndicator::VerticalSpeedIndicator ( SGPropertyNode *node )
+ : _internal_pressure_inhg(29.92),
+ _name(node->getStringValue("name", "vertical-speed-indicator")),
+ _num(node->getIntValue("number", 0)),
+ _static_pressure(node->getStringValue("static-pressure", "/systems/static/pressure-inhg"))
{
}
void
VerticalSpeedIndicator::init ()
{
- _serviceable_node =
- fgGetNode("/instrumentation/vertical-speed-indicator/serviceable",
- true);
- _pressure_node =
- fgGetNode("/systems/static/pressure-inhg", true);
- _speed_node =
- fgGetNode("/instrumentation/vertical-speed-indicator/indicated-speed-fpm",
- true);
-}
+ string branch;
+ branch = "/instrumentation/" + _name;
-void
-VerticalSpeedIndicator::bind ()
-{
-}
+ SGPropertyNode *node = fgGetNode(branch.c_str(), _num, true );
+ _serviceable_node = node->getChild("serviceable", 0, true);
+ _pressure_node = fgGetNode(_static_pressure.c_str(), true);
+ _speed_node = node->getChild("indicated-speed-fpm", 0, true);
+ _speed_up_node = fgGetNode("/sim/speed-up", true);
-void
-VerticalSpeedIndicator::unbind ()
-{
+ // Initialize at ambient pressure
+ _internal_pressure_inhg = _pressure_node->getDoubleValue();
}
void
VerticalSpeedIndicator::update (double dt)
{
- // model take from steam.cxx, with change
+ // model taken from steam.cxx, with change
// from 10000 to 10500 for manual factor
if (_serviceable_node->getBoolValue()) {
double pressure = _pressure_node->getDoubleValue();
+ double speed_up = _speed_up_node->getDoubleValue();
+ if( speed_up > 1 )
+ dt *= speed_up;
_speed_node
->setDoubleValue((_internal_pressure_inhg - pressure) * 10500);
_internal_pressure_inhg =