FGFS-4.1/simgear
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Fixed a problem that could cause a divide by zero error during initialization.

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Contributed by Durk Talsma.
This commit is contained in:
curt 2001-06-10 15:12:09 +00:00
parent 29dfc5bd3c
commit a212589865
1 changed files with 11 additions and 1 deletions
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12
simgear/ephemeris/moonpos.cxx
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@ -182,7 +182,17 @@ void MoonPos::updatePosition(double mjd, double lst, double lat, Star *ourSun)
// SG_LOG( SG_GENERAL, SG_INFO, "g = " << g );
rightAscension = geoRa - mpar * rho * cos(gclat) * sin(HA) / cos (geoDec);
declination = geoDec - mpar * rho * sin (gclat) * sin (g - geoDec) / sin(g);
if (fabs(lat) > 0) {
declination
= geoDec - mpar * rho * sin (gclat) * sin (g - geoDec) / sin(g);
} else {
declination = geoDec;
// cerr << "Geocentric vs. Topocentric position" << endl;
// cerr << "RA (difference) : "
// << SGD_RADIANS_TO_DEGREES * (geoRa - rightAscension) << endl;
// cerr << "Dec (difference) : "
// << SGD_RADIANS_TO_DEGREES * (geoDec - declination) << endl;
}
/* SG_LOG( SG_GENERAL, SG_INFO,
"Ra = (" << (SGD_RADIANS_TO_DEGREES *rightAscension)