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GPS: tests for long great-circle legs

Check that everything behaves as expected with legs spanning very
large distances.
This commit is contained in:
James Turner 2019-09-19 10:44:09 +01:00
parent 2434c037c8
commit fdb2120b68
2 changed files with 170 additions and 381 deletions

View file

@ -479,388 +479,173 @@ void GPSTests::testDirectToLegOnFlightplan()
}
void GPSTests::testLongLeg()
{
auto rm = globals->get_subsystem<FGRouteMgr>();
auto fp = new FlightPlan;
rm->setFlightPlan(fp);
FGTestApi::setUp::populateFPWithoutNasal(fp, "KLAX", "25R", "KJFK", "22R","VNY TEB");
// takes the place of the Nasal delegates
auto testDelegate = new TestFPDelegate;
testDelegate->thePlan = fp;
CPPUNIT_ASSERT(rm->activate());
fp->addDelegate(testDelegate);
auto gps = setupStandardGPS();
auto gpsNode = globals->get_props()->getNode("instrumentation/gps");
gpsNode->setStringValue("command", "leg");
// custom CDI deflection output
gpsNode->setDoubleValue("config/cdi-max-deflection-nm", 20.0);
auto vanNuysVOR = fp->legAtIndex(1)->waypoint()->source();
CPPUNIT_ASSERT_EQUAL(std::string{"VAN NUYS VOR-DME"}, vanNuysVOR->name());
auto teterboroVOR = fp->legAtIndex(2)->waypoint()->source();
CPPUNIT_ASSERT_EQUAL(std::string{"TETERBORO VOR-DME"}, teterboroVOR->name());
fp->setCurrentIndex(2);
// initial course at VNY
setPositionAndStabilise(gps, vanNuysVOR->geod());
const double initialCourse = SGGeodesy::courseDeg(vanNuysVOR->geod(), teterboroVOR->geod());
const double distanceM = SGGeodesy::distanceM(vanNuysVOR->geod(), teterboroVOR->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(initialCourse, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(initialCourse, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distanceM * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distanceM * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/leg-distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
// part of the way, check enroute leg course
const SGGeod onTheWay = SGGeodesy::direct(vanNuysVOR->geod(), initialCourse, distanceM * 0.7);
setPositionAndStabilise(gps, onTheWay);
const double courseNow = SGGeodesy::courseDeg(onTheWay, teterboroVOR->geod());
const double distNow = SGGeodesy::distanceM(onTheWay, teterboroVOR->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseNow, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseNow, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distNow * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distanceM * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/leg-distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
// check a seriously abeam point, we got far of course
// to the right of the course, i.e desired track is to our left, so -ve
const SGGeod offTheWay = SGGeodesy::direct(onTheWay, courseNow + 90, SG_NM_TO_METER * 13.5);
setPositionAndStabilise(gps, offTheWay);
const double courseFromOff1 = SGGeodesy::courseDeg(offTheWay, teterboroVOR->geod());
const double dist2 = SGGeodesy::distanceM(offTheWay, teterboroVOR->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseFromOff1, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseNow, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-13.5, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseFromOff1 - courseNow, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(dist2 * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
const double expectedDefl1 = -13.5 / 20.0;
CPPUNIT_ASSERT_DOUBLES_EQUAL(expectedDefl1 * 10.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
// check off the other side, close to the destination
const SGGeod onTheWay2 = SGGeodesy::direct(vanNuysVOR->geod(), initialCourse, distanceM * 0.92);
const double courseOn2 = SGGeodesy::courseDeg(onTheWay2, teterboroVOR->geod());
const SGGeod off2 = SGGeodesy::direct(onTheWay2, courseOn2 - 90, SG_NM_TO_METER * 31.2);
setPositionAndStabilise(gps, off2);
const double courseFromOff2 = SGGeodesy::courseDeg(off2, teterboroVOR->geod());
const double dist3 = SGGeodesy::distanceM(off2, teterboroVOR->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseFromOff2, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseOn2, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(31.2, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseFromOff2 - courseOn2, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(dist3 * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
// should peg the CDI, +ve
CPPUNIT_ASSERT_DOUBLES_EQUAL(10.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
}
void GPSTests::testLongLegWestbound()
{
auto rm = globals->get_subsystem<FGRouteMgr>();
auto fp = new FlightPlan;
rm->setFlightPlan(fp);
FGTestApi::setUp::populateFPWithoutNasal(fp, "ENBR", "35", "BIKF", "29","VOO GAKTU");
// takes the place of the Nasal delegates
auto testDelegate = new TestFPDelegate;
testDelegate->thePlan = fp;
CPPUNIT_ASSERT(rm->activate());
fp->addDelegate(testDelegate);
auto gps = setupStandardGPS();
auto gpsNode = globals->get_props()->getNode("instrumentation/gps");
gpsNode->setStringValue("command", "leg");
// custom CDI deflection output
gpsNode->setDoubleValue("config/cdi-max-deflection-nm", 25.0);
auto volloVOR = fp->legAtIndex(1)->waypoint()->source();
CPPUNIT_ASSERT_EQUAL(std::string{"VOLLO VOR-DME"}, volloVOR->name());
auto gaktu = fp->legAtIndex(2)->waypoint()->source();
CPPUNIT_ASSERT_EQUAL(std::string{"GAKTU"}, gaktu->name());
fp->setCurrentIndex(2);
// initial course at VNY
setPositionAndStabilise(gps, volloVOR->geod());
const double initialCourse = SGGeodesy::courseDeg(volloVOR->geod(), gaktu->geod());
const double distanceM = SGGeodesy::distanceM(volloVOR->geod(), gaktu->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(initialCourse, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(initialCourse, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distanceM * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distanceM * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/leg-distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
// part of the way, check enroute leg course
const SGGeod onTheWay = SGGeodesy::direct(volloVOR->geod(), initialCourse, distanceM * 0.4);
setPositionAndStabilise(gps, onTheWay);
const double courseNow = SGGeodesy::courseDeg(onTheWay, gaktu->geod());
const double distNow = SGGeodesy::distanceM(onTheWay, gaktu->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseNow, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseNow, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distNow * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(distanceM * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/leg-distance-nm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
// check a seriously abeam point, we got far of course
// to the right of the course, i.e desired track is to our left, so -ve
const SGGeod offTheWay = SGGeodesy::direct(onTheWay, courseNow + 90, SG_NM_TO_METER * 18.6);
setPositionAndStabilise(gps, offTheWay);
const double courseFromOff1 = SGGeodesy::courseDeg(offTheWay, gaktu->geod());
const double dist2 = SGGeodesy::distanceM(offTheWay, gaktu->geod());
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseFromOff1, gpsNode->getDoubleValue("wp/wp[1]/bearing-true-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseNow, gpsNode->getDoubleValue("wp/leg-true-course-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-18.6, gpsNode->getDoubleValue("wp/wp[1]/course-error-nm"), 0.05);
CPPUNIT_ASSERT_DOUBLES_EQUAL(courseFromOff1 - courseNow, gpsNode->getDoubleValue("wp/wp[1]/course-deviation-deg"), 0.5);
CPPUNIT_ASSERT_DOUBLES_EQUAL(dist2 * SG_METER_TO_NM, gpsNode->getDoubleValue("wp/wp[1]/distance-nm"), 0.01);
const double expectedDefl1 = -18.6 / 25.0;
CPPUNIT_ASSERT_DOUBLES_EQUAL(expectedDefl1 * 10.0, gpsNode->getDoubleValue("cdi-deflection"), 0.01);
}
void GPSTests::testTurnAnticipation()
{
}
#if 0
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
// needed for the radio to power up
globals->get_props()->setDoubleValue("systems/electrical/outputs/navtest", 6.0);
node->setDoubleValue("frequencies/selected-mhz", 113.8);
SGGeod pos = SGGeod::fromDegFt(-3.352780, 55.499199, 20000);
setPositionAndStabilise(r.get(), pos);
CPPUNIT_ASSERT(!strcmp("TLA", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_EQUAL(true, node->getBoolValue("in-range"));
}
void NavRadioTests::testCDIDeflection()
{
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
// needed for the radio to power up
globals->get_props()->setDoubleValue("systems/electrical/outputs/navtest", 6.0);
node->setDoubleValue("frequencies/selected-mhz", 113.55);
node->setDoubleValue("radials/selected-deg", 25);
FGPositioned::TypeFilter f{FGPositioned::VOR};
FGNavRecordRef nav = fgpositioned_cast<FGNavRecord>(FGPositioned::findClosestWithIdent("MCT", SGGeod::fromDeg(-2.26, 53.3), &f));
// twist of MCT is 5.0, so we use a bearing of 20 here, not 25
SGGeod posOnRadial = SGGeodesy::direct(nav->geod(), 20.0, 10 * SG_NM_TO_METER);
posOnRadial.setElevationFt(10000);
setPositionAndStabilise(r.get(), posOnRadial);
CPPUNIT_ASSERT(!strcmp("MCT", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("crosstrack-error-m"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(!node->getBoolValue("to-flag"));
// move off course
SGGeod posOffRadial = SGGeodesy::direct(nav->geod(), 15.0, 20 * SG_NM_TO_METER); // 5 degress off
posOffRadial.setElevationFt(12000);
setPositionAndStabilise(r.get(), posOffRadial);
CPPUNIT_ASSERT_DOUBLES_EQUAL(5.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.5, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
double xtkE = sin(5.0 * SG_DEGREES_TO_RADIANS) * 20 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(!node->getBoolValue("to-flag"));
posOffRadial = SGGeodesy::direct(nav->geod(), 28.0, 30 * SG_NM_TO_METER); // 8 degress off
posOffRadial.setElevationFt(16000);
setPositionAndStabilise(r.get(), posOffRadial);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-8.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-0.8, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
xtkE = sin(-8.0 * SG_DEGREES_TO_RADIANS) * 30 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
// move more than ten degrees off course
posOffRadial = SGGeodesy::direct(nav->geod(), 33.0, 40 * SG_NM_TO_METER); // 13 degress off
posOffRadial.setElevationFt(16000);
setPositionAndStabilise(r.get(), posOffRadial);
// pegged to full deflection
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-10.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
// cross track error is computed based on true deflection, not clamped
xtkE = sin(-13.0 * SG_DEGREES_TO_RADIANS) * 40 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(!node->getBoolValue("to-flag"));
// try on the TO side of the station
// let's use Perth VOR, but the Australian one to check southern
// hemisphere operation
node->setDoubleValue("frequencies/selected-mhz", 113.7);
node->setDoubleValue("radials/selected-deg", 42.0); // twist is -2.0
CPPUNIT_ASSERT(!strcmp("113.70", node->getStringValue("frequencies/selected-mhz-fmt")));
auto perthVOR = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("PH", SGGeod::fromDeg(115.95, -31.9), &f));
SGGeod p = SGGeodesy::direct(perthVOR->geod(), 220.0, 20 * SG_NM_TO_METER); // on the reciprocal radial
p.setElevationFt(12000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT(!strcmp("PH", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(40.0, node->getDoubleValue("heading-deg"), 0.5);
// actual radial has twist subtracted
CPPUNIT_ASSERT_DOUBLES_EQUAL(222.0, node->getDoubleValue("radials/actual-deg"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// off course on the TO side
p = SGGeodesy::direct(perthVOR->geod(), 227.0, 100 * SG_NM_TO_METER);
p.setElevationFt(18000);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(47.0, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(229.0, node->getDoubleValue("radials/actual-deg"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(7.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.7, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
xtkE = sin(7.0 * SG_DEGREES_TO_RADIANS) * 100 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 50.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
}
void NavRadioTests::testILSBasic()
{
// radio setup
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
globals->get_props()->setDoubleValue("systems/electrical/outputs/navtest", 6.0);
// test basic ILS: KSFO 28L
FGPositioned::TypeFilter f{{FGPositioned::VOR, FGPositioned::ILS, FGPositioned::LOC}};
FGNavRecordRef ils = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("ISFO", SGGeod::fromDeg(-112, 37.6), &f));
CPPUNIT_ASSERT(ils->type() == FGPositioned::ILS);
node->setDoubleValue("frequencies/selected-mhz", 109.55);
// node->setDoubleValue("radials/selected-deg", 42.0); // twist is -2.0
CPPUNIT_ASSERT(!strcmp("109.55", node->getStringValue("frequencies/selected-mhz-fmt")));
// note we need full precision here, due to ILS sensitivity
SGGeod p = SGGeodesy::direct(ils->geod(), 117.932, 10 * SG_NM_TO_METER);
p.setElevationFt(2500);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT(!strcmp("ISFO", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("radials/target-radial-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(117.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("heading-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("crosstrack-error-m"), 10.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// 1 degree offset
p = SGGeodesy::direct(ils->geod(), 116.932, 6 * SG_NM_TO_METER);
p.setElevationFt(1500);
setPositionAndStabilise(r.get(), p);
const double locWidth = ils->localizerWidth();
const double deflectionScale = 20.0 / locWidth; // 20 degrees is full VOR swing (-10 to +10 degrees)
CPPUNIT_ASSERT(!strcmp("ISFO", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("radials/target-radial-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(296.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(116.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.0 * deflectionScale, node->getDoubleValue("heading-needle-deflection"), 0.1);
double xtkE = sin(-1.0 * SG_DEGREES_TO_RADIANS) * 6.0 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 1.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// test pegged (4 degrees off course)
p = SGGeodesy::direct(ils->geod(), 121.932, 3 * SG_NM_TO_METER);
p.setElevationFt(600);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(301.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(121.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(10.0, node->getDoubleValue("heading-needle-deflection"), 0.1);
xtkE = sin(4.0 * SG_DEGREES_TO_RADIANS) * 3.0 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 1.0);
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
// also check ILS back course
// 1 degree offset on the BC
p = SGGeodesy::direct(ils->geod(), 298.932, 4 * SG_NM_TO_METER);
p.setElevationFt(1500);
setPositionAndStabilise(r.get(), p);
CPPUNIT_ASSERT(!strcmp("ISFO", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(297.9, node->getDoubleValue("radials/target-radial-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(118.9, node->getDoubleValue("heading-deg"), 1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(298.932, node->getDoubleValue("radials/actual-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.0 * deflectionScale, node->getDoubleValue("heading-needle-deflection"), 0.1);
xtkE = sin(-1.0 * SG_DEGREES_TO_RADIANS) * 4.0 * SG_NM_TO_METER;
CPPUNIT_ASSERT_DOUBLES_EQUAL(xtkE, node->getDoubleValue("crosstrack-error-m"), 1.0);
// these don't change for an ILS
CPPUNIT_ASSERT(!node->getBoolValue("from-flag"));
CPPUNIT_ASSERT(node->getBoolValue("to-flag"));
}
void NavRadioTests::testGS()
{
// radio setup
SGPropertyNode_ptr configNode(new SGPropertyNode);
configNode->setStringValue("name", "navtest");
configNode->setIntValue("number", 2);
std::unique_ptr<FGNavRadio> r(new FGNavRadio(configNode));
r->bind();
r->init();
SGPropertyNode_ptr node = globals->get_props()->getNode("instrumentation/navtest[2]");
node->setBoolValue("serviceable", true);
globals->get_props()->setDoubleValue("systems/electrical/outputs/navtest", 6.0);
// EDDT 28R
FGPositioned::TypeFilter f{FGPositioned::GS};
FGNavRecordRef gs = fgpositioned_cast<FGNavRecord>(
FGPositioned::findClosestWithIdent("ITLW", SGGeod::fromDeg(13, 52), &f));
CPPUNIT_ASSERT(gs->type() == FGPositioned::GS);
node->setDoubleValue("frequencies/selected-mhz", 110.10);
CPPUNIT_ASSERT(!strcmp("110.10", node->getStringValue("frequencies/selected-mhz-fmt")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(gs->glideSlopeAngleDeg(), 3.0, 0.001);
double gsAngleRad = gs->glideSlopeAngleDeg() * SG_DEGREES_TO_RADIANS;
/////////////
// derive the GS geometry in cartesian vectors, to match what
// navradio.cxx does
SGGeod aboveGS = gs->geod();
aboveGS.setElevationM(gs->geod().getElevationM() + 100.0);
SGVec3d gsVerticalAxis = SGVec3d::fromGeod(aboveGS) - gs->cart();
// intentionally different approach to what navradio uses
gsVerticalAxis *= 0.01; // make it per meter, since we used 100m above
// dervice the baseline
SGQuatd baseLineRot = SGQuatd::fromLonLat(gs->geod()) * SGQuatd::fromHeadAttBankDeg(80.828, 0, 0);
SGVec3d gsAltAxis = baseLineRot.backTransform(SGVec3d(1.0, 0.0, 0.0));
const SGVec3d gsCart = gs->cart();
//////////////////
SGVec3d radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 8 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 8 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT(!strcmp("ITLW", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.0, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// 0.5 degree offset above
gsAngleRad = (gs->glideSlopeAngleDeg() + 0.5) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 4 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 4 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT(!strcmp("ITLW", node->getStringValue("nav-id")));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.5, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-2.5, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-0.714, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// 1 degree below (danger!)
gsAngleRad = (gs->glideSlopeAngleDeg() - 1.0) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 2 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 2 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(2.0, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(3.5, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// false course above, reversed
gsAngleRad = (gs->glideSlopeAngleDeg() + 3.0) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 5 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 5 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(6.0, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(0.0, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
// false course above, reversed, 0.35 offset below
gsAngleRad = (gs->glideSlopeAngleDeg() + 2.65) * SG_DEGREES_TO_RADIANS;
radioPos = gsCart;
radioPos += (gsVerticalAxis * tan(gsAngleRad) * 3 * SG_NM_TO_METER);
radioPos += (gsAltAxis * 3 * SG_NM_TO_METER);
setPositionAndStabilise(r.get(), SGGeod::fromCart(radioPos));
CPPUNIT_ASSERT_DOUBLES_EQUAL(1.0, node->getDoubleValue("signal-quality-norm"), 0.01);
CPPUNIT_ASSERT_DOUBLES_EQUAL(5.65, node->getDoubleValue("gs-direct-deg"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-1.75, node->getDoubleValue("gs-needle-deflection"), 0.1);
CPPUNIT_ASSERT_DOUBLES_EQUAL(-0.5, node->getDoubleValue("gs-needle-deflection-norm"), 0.01);
CPPUNIT_ASSERT(node->getBoolValue("gs-in-range"));
}
void NavRadioTests::testILSFalseCourse()
{
// also GS false lobes
}
void NavRadioTests::testILSPaired()
{
// EGPH and countless more
}
void NavRadioTests::testILSAdjacentPaired()
{
// eg KJFK
}
#endif

View file

@ -44,6 +44,8 @@ class GPSTests : public CppUnit::TestFixture
CPPUNIT_TEST(testDirectTo);
CPPUNIT_TEST(testLegMode);
CPPUNIT_TEST(testDirectToLegOnFlightplan);
CPPUNIT_TEST(testLongLeg);
CPPUNIT_TEST(testLongLegWestbound);
CPPUNIT_TEST_SUITE_END();
@ -68,6 +70,8 @@ public:
void testDirectTo();
void testLegMode();
void testDirectToLegOnFlightplan();
void testLongLeg();
void testLongLegWestbound();
};
#endif // _FG_GPS_UNIT_TESTS_HXX