/// <returns>P, index in all HEALPix grid</returns>
public int NorthMean(HealCoor basin)
{
// last basin in north ring
var northP = basin.P - basin.PixelInRing;
var pixelsInNorthRing = _healpixManager.PixelsCountInRing(basin.Ring - 1);
var northPixelInRing = basin.PixelInRing * pixelsInNorthRing /
basin.PixelsCountInRing /* _healpixManager.PixelsCountInRing(basin.Ring) */;
return(northP - pixelsInNorthRing + Math.Max(1, northPixelInRing));
}
internal virtual void PreInit(HealpixManager man)
{
PixelsCountInRing = man.PixelsCountInRing(Ring);
NorthCap = man.Northcap(Ring);
}