public DensityArea(
TangentalNormalizedDirectionAstrometry astrometry,
int maxStarsInArea,
double raFrom,
double raTo,
double deFrom,
double deTo,
List<ulong> alwaysIncludeStars)
{
m_RAFrom = raFrom;
m_RATo = raTo;
m_DEFrom = deFrom;
m_DETo = deTo;
MarkedStars = 0;
m_Astrometry = astrometry;
m_MaxStarsInArea = maxStarsInArea;
if (alwaysIncludeStars != null) m_AlwaysIncludeStars.AddRange(alwaysIncludeStars);
double x1, y1, x2, y2;
astrometry.GetImageCoordsFromRADE(raFrom, deFrom, out x1, out y1);
astrometry.GetImageCoordsFromRADE(raTo, deTo, out x2, out y2);
m_XFrom = x1;
m_YFrom = y1;
m_XTo = x2;
m_YTo = y2;
#if ASTROMETRY_DEBUG
Trace.Assert(x1 < x2);
Trace.Assert(y1 < y2);
#endif
}
public DensityArea(
TangentalNormalizedDirectionAstrometry astrometry,
int maxStarsInArea,
double raFrom,
double raTo,
double deFrom,
double deTo)
{
m_RAFrom = raFrom;
m_RATo = raTo;
m_DEFrom = deFrom;
m_DETo = deTo;
MarkedStars = 0;
m_Astrometry = astrometry;
m_MaxStarsInArea = maxStarsInArea;
double x1, y1, x2, y2;
astrometry.GetImageCoordsFromRADE(raFrom, deFrom, out x1, out y1);
astrometry.GetImageCoordsFromRADE(raTo, deTo, out x2, out y2);
m_XFrom = x1;
m_YFrom = y1;
m_XTo = x2;
m_YTo = y2;
#if ASTROMETRY_DEBUG
Trace.Assert(x1 < x2);
Trace.Assert(y1 < y2);
#endif
}
private DensityArea ComputeAreaFromXYPixCoords(
TangentalNormalizedDirectionAstrometry astrometry,
double x1, double y1, double x2, double y2)
{
double ra1, de1, ra2, de2;
astrometry.GetRADEFromImageCoords(x1, y1, out ra1, out de1);
astrometry.GetRADEFromImageCoords(x2, y2, out ra2, out de2);
DensityArea area = new DensityArea(astrometry, MAX_STARS_IN_AREA, ra1, ra2, de1, de2);
area.DebugResolvedStarsWithAppliedExclusions = DebugResolvedStarsWithAppliedExclusions;
#if ASTROMETRY_DEBUG
Trace.Assert(Math.Abs(area.XFrom - x1) < 1);
Trace.Assert(Math.Abs(area.XTo - x2) < 1);
Trace.Assert(Math.Abs(area.YFrom - y1) < 1);
Trace.Assert(Math.Abs(area.YTo - y2) < 1);
#endif
double xx1, yy1, xx2, yy2;
astrometry.GetImageCoordsFromRADE(area.RAFrom, area.DEFrom, out xx1, out yy1);
astrometry.GetImageCoordsFromRADE(area.RATo, area.DETo, out xx2, out yy2);
#if ASTROMETRY_DEBUG
Trace.Assert(Math.Abs(area.XFrom - xx1) < 1);
Trace.Assert(Math.Abs(area.YFrom - yy1) < 1);
Trace.Assert(Math.Abs(area.XTo - xx2) < 1);
Trace.Assert(Math.Abs(area.YTo - yy2) < 1);
Trace.Assert(Math.Abs(x1 - xx1) < 1);
Trace.Assert(Math.Abs(y1 - yy1) < 1);
Trace.Assert(Math.Abs(x2 - xx2) < 1);
Trace.Assert(Math.Abs(y2 - yy2) < 1);
#endif
return(area);
}
private List <DensityArea> GetSurroundingAreas(
DensityArea middleArea,
TangentalNormalizedDirectionAstrometry astrometry,
double xSide,
double ySide)
{
var rv = new List <DensityArea>();
// Top 3
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom - xSide, middleArea.YFrom - ySide, middleArea.XFrom, middleArea.YFrom));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom, middleArea.YFrom - ySide, middleArea.XTo, middleArea.YFrom));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XTo, middleArea.YFrom - ySide, middleArea.XTo + xSide, middleArea.YFrom));
// Middle 2
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom - xSide, middleArea.YFrom, middleArea.XFrom, middleArea.YTo));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XTo, middleArea.YFrom, middleArea.XTo + xSide, middleArea.YTo));
// Bottom 3
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom - xSide, middleArea.YTo, middleArea.XFrom, middleArea.YTo + ySide));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom, middleArea.YTo, middleArea.XTo, middleArea.YTo + ySide));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XTo, middleArea.YTo, middleArea.XTo + xSide, middleArea.YTo + ySide));
return(rv);
}
public void Initialize(List <ulong> alwaysIncludeStars)
{
if (DebugResolvedStarsWithAppliedExclusions != null)
{
List <ulong> debugStarIds = DebugResolvedStarsWithAppliedExclusions.Values.ToList();
List <IStar> missingstars = m_Stars.Where(s => !debugStarIds.Contains(s.StarNo)).ToList();
Trace.Assert(missingstars.Count == 0,
string.Format("There are {0} of the debug stars not found among the initial pyramid stars", missingstars.Count));
}
if (alwaysIncludeStars != null && alwaysIncludeStars.Count > 0)
{
foreach (var starNo in alwaysIncludeStars.ToArray())
{
if (m_Stars.FirstOrDefault(s => s.StarNo == starNo) == null)
{
Trace.WriteLine(string.Format("Cannot locate always include star {0}. Removing ...", starNo));
alwaysIncludeStars.Remove(starNo);
}
}
}
double minDE = double.MaxValue;
double maxDE = double.MinValue;
double minRA = double.MaxValue;
double maxRA = double.MinValue;
for (int i = 0; i < m_Stars.Count; i++)
{
IStar star = m_Stars[i];
if (star.RADeg > maxRA)
{
maxRA = star.RADeg;
}
if (star.RADeg < minRA)
{
minRA = star.RADeg;
}
if (star.DEDeg > maxDE)
{
maxDE = star.DEDeg;
}
if (star.DEDeg < minDE)
{
minDE = star.DEDeg;
}
}
TangentalTransRotAstrometry astrometryBase = new TangentalTransRotAstrometry(m_Image, m_RA0Deg, m_DE0Deg, 0);
TangentalNormalizedDirectionAstrometry astrometry = new TangentalNormalizedDirectionAstrometry(astrometryBase);
DensityArea middleArea = new DensityArea(astrometry, MAX_STARS_IN_AREA, m_RA0Deg - m_XAreaSideDeg / 2, m_RA0Deg + m_XAreaSideDeg / 2, m_DE0Deg - m_YAreaSideDeg / 2, m_DE0Deg + m_YAreaSideDeg / 2);
middleArea.DebugResolvedStarsWithAppliedExclusions = DebugResolvedStarsWithAppliedExclusions;
double xSidePlatePix = Math.Abs(middleArea.XTo - middleArea.XFrom);
double ySidePlatePix = Math.Abs(middleArea.YTo - middleArea.YFrom);
double raInterval = astrometryBase.GetDistanceInArcSec(middleArea.XFrom, middleArea.YMiddle, middleArea.XTo, middleArea.YMiddle) / 3600.0;
double deInterval = astrometryBase.GetDistanceInArcSec(middleArea.XMiddle, middleArea.YFrom, middleArea.XMiddle, middleArea.YTo) / 3600.0;
List <DensityArea> areasToCheckFurther = new List <DensityArea>();
areasToCheckFurther.Add(middleArea);
Areas.Add(middleArea);
do
{
DensityArea[] areasToCheckNow = areasToCheckFurther.ToArray();
areasToCheckFurther.Clear();
foreach (DensityArea area in areasToCheckNow)
{
List <DensityArea> potentiallyNewAreas = GetSurroundingAreas(area, astrometry, xSidePlatePix, ySidePlatePix);
foreach (DensityArea par in potentiallyNewAreas)
{
bool areadyAdded = Areas.Exists(a => a.ContainsPoint(par.XMiddle, par.YMiddle));
if (!areadyAdded)
{
if (par.RAFrom + raInterval < minRA ||
par.RATo - raInterval > maxRA ||
par.DEFrom + deInterval < minDE ||
par.DETo - deInterval > maxDE)
{
// Area not in the coordinates of interest
}
else
{
areasToCheckFurther.Add(par);
Areas.Add(par);
}
}
}
}
}while (areasToCheckFurther.Count > 0);
m_Stars.Sort((s1, s2) => s1.Mag.CompareTo(s2.Mag));
var aiss = (alwaysIncludeStars != null && alwaysIncludeStars.Count > 0) ? m_Stars.Where(s => alwaysIncludeStars.Contains(s.StarNo)).ToArray() : new IStar[0];
Areas.ForEach(a =>
{
foreach (var star in m_Stars)
{
a.CheckAndAddStar(star);
if (a.IncludedStarNos.Count >= MAX_STARS_IN_AREA)
{
break;
}
}
foreach (var ais in aiss)
{
if (a.CheckAndAddStar(ais))
{
if (!a.IncludedStarNos.Contains(ais.StarNo))
{
a.IncludedStarNos.Add(ais.StarNo);
}
}
}
});
}
private List<DensityArea> GetSurroundingAreas(
DensityArea middleArea,
TangentalNormalizedDirectionAstrometry astrometry,
double xSide,
double ySide,
List<ulong> alwaysIncludeStars)
{
var rv = new List<DensityArea>();
// Top 3
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom - xSide, middleArea.YFrom - ySide, middleArea.XFrom, middleArea.YFrom, alwaysIncludeStars));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom, middleArea.YFrom - ySide, middleArea.XTo, middleArea.YFrom, alwaysIncludeStars));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XTo, middleArea.YFrom - ySide, middleArea.XTo + xSide, middleArea.YFrom, alwaysIncludeStars));
// Middle 2
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom - xSide, middleArea.YFrom, middleArea.XFrom, middleArea.YTo, alwaysIncludeStars));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XTo, middleArea.YFrom, middleArea.XTo + xSide, middleArea.YTo, alwaysIncludeStars));
// Bottom 3
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom - xSide, middleArea.YTo, middleArea.XFrom, middleArea.YTo + ySide, alwaysIncludeStars));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XFrom, middleArea.YTo, middleArea.XTo, middleArea.YTo + ySide, alwaysIncludeStars));
rv.Add(ComputeAreaFromXYPixCoords(astrometry, middleArea.XTo, middleArea.YTo, middleArea.XTo + xSide, middleArea.YTo + ySide, alwaysIncludeStars));
return rv;
}
private DensityArea ComputeAreaFromXYPixCoords(
TangentalNormalizedDirectionAstrometry astrometry,
double x1, double y1, double x2, double y2,
List<ulong> alwaysIncludeStars)
{
double ra1, de1, ra2, de2;
astrometry.GetRADEFromImageCoords(x1, y1, out ra1, out de1);
astrometry.GetRADEFromImageCoords(x2, y2, out ra2, out de2);
DensityArea area = new DensityArea(astrometry, MAX_STARS_IN_AREA, ra1, ra2, de1, de2, alwaysIncludeStars);
area.DebugResolvedStarsWithAppliedExclusions = DebugResolvedStarsWithAppliedExclusions;
#if ASTROMETRY_DEBUG
Trace.Assert(Math.Abs(area.XFrom - x1) < 1);
Trace.Assert(Math.Abs(area.XTo - x2) < 1);
Trace.Assert(Math.Abs(area.YFrom - y1) < 1);
Trace.Assert(Math.Abs(area.YTo - y2) < 1);
#endif
double xx1, yy1, xx2, yy2;
astrometry.GetImageCoordsFromRADE(area.RAFrom, area.DEFrom, out xx1, out yy1);
astrometry.GetImageCoordsFromRADE(area.RATo, area.DETo, out xx2, out yy2);
#if ASTROMETRY_DEBUG
Trace.Assert(Math.Abs(area.XFrom - xx1) < 1);
Trace.Assert(Math.Abs(area.YFrom - yy1) < 1);
Trace.Assert(Math.Abs(area.XTo - xx2) < 1);
Trace.Assert(Math.Abs(area.YTo - yy2) < 1);
Trace.Assert(Math.Abs(x1 - xx1) < 1);
Trace.Assert(Math.Abs(y1 - yy1) < 1);
Trace.Assert(Math.Abs(x2 - xx2) < 1);
Trace.Assert(Math.Abs(y2 - yy2) < 1);
#endif
return area;
}
public void Initialize(List<ulong> alwaysIncludeStars)
{
if (DebugResolvedStarsWithAppliedExclusions != null)
{
List<ulong> debugStarIds = DebugResolvedStarsWithAppliedExclusions.Values.ToList();
List<IStar> missingstars = m_Stars.Where(s => !debugStarIds.Contains(s.StarNo)).ToList();
Trace.Assert(missingstars.Count == 0,
string.Format("There are {0} of the debug stars not found among the initial pyramid stars", missingstars.Count));
}
double minDE = double.MaxValue;
double maxDE = double.MinValue;
double minRA = double.MaxValue;
double maxRA = double.MinValue;
double averageRA = 0;
double averageDE = 0;
for (int i = 0; i < m_Stars.Count; i++)
{
IStar star = m_Stars[i];
if (star.RADeg > maxRA) maxRA = star.RADeg;
if (star.RADeg < minRA) minRA = star.RADeg;
if (star.DEDeg > maxDE) maxDE = star.DEDeg;
if (star.DEDeg < minDE) minDE = star.DEDeg;
averageDE += star.DEDeg;
averageRA += star.RADeg;
}
averageDE /= m_Stars.Count;
averageRA /= m_Stars.Count;
m_RA0Deg = averageRA;
m_DE0Deg = averageDE;
TangentalTransRotAstrometry astrometryBase = new TangentalTransRotAstrometry(m_Image, averageRA, averageDE, 0);
TangentalNormalizedDirectionAstrometry astrometry = new TangentalNormalizedDirectionAstrometry(astrometryBase);
DensityArea middleArea = new DensityArea(astrometry, MAX_STARS_IN_AREA, averageRA - m_XAreaSideDeg / 2, averageRA + m_XAreaSideDeg / 2, averageDE - m_YAreaSideDeg / 2, averageDE + m_YAreaSideDeg / 2, alwaysIncludeStars);
middleArea.DebugResolvedStarsWithAppliedExclusions = DebugResolvedStarsWithAppliedExclusions;
double xSidePlatePix = Math.Abs(middleArea.XTo - middleArea.XFrom);
double ySidePlatePix = Math.Abs(middleArea.YTo - middleArea.YFrom);
double raInterval = astrometryBase.GetDistanceInArcSec(middleArea.XFrom, middleArea.YMiddle, middleArea.XTo, middleArea.YMiddle) / 3600.0;
double deInterval = astrometryBase.GetDistanceInArcSec(middleArea.XMiddle, middleArea.YFrom, middleArea.XMiddle, middleArea.YTo) / 3600.0;
List<DensityArea> areasToCheckFurther = new List<DensityArea>();
areasToCheckFurther.Add(middleArea);
Areas.Add(middleArea);
do
{
DensityArea[] areasToCheckNow = areasToCheckFurther.ToArray();
areasToCheckFurther.Clear();
foreach (DensityArea area in areasToCheckNow)
{
List<DensityArea> potentiallyNewAreas = GetSurroundingAreas(area, astrometry, xSidePlatePix, ySidePlatePix, alwaysIncludeStars);
foreach(DensityArea par in potentiallyNewAreas)
{
bool areadyAdded = Areas.Exists(a => a.ContainsPoint(par.XMiddle, par.YMiddle));
if (!areadyAdded)
{
if (par.RAFrom + raInterval < minRA ||
par.RATo - raInterval > maxRA ||
par.DEFrom + deInterval < minDE ||
par.DETo - deInterval > maxDE)
{
// Area not in the coordinates of interest
}
else
{
areasToCheckFurther.Add(par);
Areas.Add(par);
}
}
}
}
}
while (areasToCheckFurther.Count > 0);
m_Stars.Sort((s1, s2) => s1.Mag.CompareTo(s2.Mag));
int maxStars = MAX_STARS_IN_AREA + (alwaysIncludeStars != null ? alwaysIncludeStars.Count : 0);
Areas.ForEach(a =>
{
foreach (var star in m_Stars)
{
a.CheckAndAddStar(star);
if (a.IncludedStarNos.Count >= maxStars)
break;
}
});
}