int main (int argc, char* argv[])
{
double JD;
struct ln_rect_posn moon;
struct ln_equ_posn equ;
struct ln_lnlat_posn ecl;
struct ln_lnlat_posn observer;
struct ln_rst_time rst;
struct ln_zonedate rise, transit, set;
/* observers location (Edinburgh), used to calc rst */
observer.lat = 55.92; /* 55.92 N */
observer.lng = -3.18; /* 3.18 W */
/* get the julian day from the local system time */
JD = ln_get_julian_from_sys();
printf ("JD %f\n",JD);
/* get the lunar geopcentric position in km, earth is at 0,0,0 */
ln_get_lunar_geo_posn (JD, &moon, 0);
printf ("lunar x %f y %f z %f\n",moon.X, moon.Y, moon.Z);
/* Long Lat */
ln_get_lunar_ecl_coords (JD, &ecl, 0);
printf ("lunar long %f lat %f\n",ecl.lng, ecl.lat);
/* RA, DEC */
ln_get_lunar_equ_coords (JD, &equ);
printf ("lunar RA %f Dec %f\n",equ.ra, equ.dec);
/* moon earth distance */
printf ("lunar distance km %f\n", ln_get_lunar_earth_dist(JD));
/* lunar disk, phase and bright limb */
printf ("lunar disk %f\n", ln_get_lunar_disk(JD));
printf ("lunar phase %f\n", ln_get_lunar_phase(JD));
printf ("lunar bright limb %f\n", ln_get_lunar_bright_limb(JD));
/* rise, set and transit time */
if (ln_get_lunar_rst (JD, &observer, &rst) == 1)
printf ("Moon is circumpolar\n");
else {
ln_get_local_date (rst.rise, &rise);
ln_get_local_date (rst.transit, &transit);
ln_get_local_date (rst.set, &set);
print_date ("Rise", &rise);
print_date ("Transit", &transit);
print_date ("Set", &set);
}
/* rise, set and transit time */
if (ln_get_lunar_rst (JD - 24, &observer, &rst) == 1)
printf ("Moon is circumpolar\n");
else {
ln_get_local_date (rst.rise, &rise);
ln_get_local_date (rst.transit, &transit);
ln_get_local_date (rst.set, &set);
print_date ("Rise", &rise);
print_date ("Transit", &transit);
print_date ("Set", &set);
}
/* rise, set and transit time */
if (ln_get_lunar_rst (JD - 25, &observer, &rst) == 1)
printf ("Moon is circumpolar\n");
else {
ln_get_local_date (rst.rise, &rise);
ln_get_local_date (rst.transit, &transit);
ln_get_local_date (rst.set, &set);
print_date ("Rise", &rise);
print_date ("Transit", &transit);
print_date ("Set", &set);
}
return 0;
}
void MainWindow::setSunRiseAndSetVectors(const QDateTime &dateTime)
{
struct ln_equ_posn equ;
struct ln_rst_time rst;
struct ln_zonedate rise, set, transit;
struct ln_lnlat_posn observer;
struct ln_hrz_posn hpos;
double JD;
observer.lat = ui->latEdit->text().toFloat();
observer.lng = ui->lngEdit->text().toFloat();
ln_date date;
date.years = dateTime.date().year();
date.months = dateTime.date().month();
date.days = dateTime.date().day();
date.hours = dateTime.time().hour();
date.minutes = dateTime.time().minute();
date.seconds = dateTime.time().second();
JD = ln_get_julian_day(&date);
/* ra, dec */
ln_get_solar_equ_coords (JD, &equ);
ln_get_hrz_from_equ(&equ, &observer, JD, &hpos);
double a = ln_range_degrees(hpos.az - 180);
QString s;
s.sprintf("Azimut: %0.3f", a);
ui->listWidget->addItem(s);
s.sprintf("Evaluation: %0.3f", hpos.alt);
ui->listWidget->addItem(s);
/* rise, set and transit */
if (ln_get_solar_rst (JD, &observer, &rst) == 1) {
ui->listWidget->addItem(QString("Zirkumpolar"));
} else {
ln_get_local_date (rst.rise, &rise);
ln_get_local_date (rst.transit, &transit);
ln_get_local_date (rst.set, &set);
s.sprintf("Aufgang: %02d:%02d:%02d", rise.hours, rise.minutes, (int)rise.seconds);
ui->listWidget->addItem(s);
s.sprintf("Transit: %02d:%02d:%02d", transit.hours, transit.minutes, (int)transit.seconds);
ui->listWidget->addItem(s);
s.sprintf("Untergang: %02d:%02d:%02d", set.hours, set.minutes, (int)set.seconds);
ui->listWidget->addItem(s);
}
//sunHeading->setVisible(false);
setSunVectors(&rise, &observer, sunRise);
setSunVectors(&set, &observer, sunSet);
mc->setView(QPointF(observer.lng, observer.lat));
//overlay->addGeometry();
}