public static SimDateTime SelectNextSnapshot(SimDateTime sdt)
{
List <SimDateTime> snapshots = AvailableSnapshots;
if (snapshots != null && snapshots.Count > 0)
{
if (snapshots.Contains(sdt) == false)
{
sdt = SelectNearestSnapshot(sdt);
}
int idx = snapshots.IndexOf(sdt);
if (idx < 0)
{
return(snapshots[0]);
}
if (idx >= snapshots.Count)
{
return(snapshots[snapshots.Count - 1]);
}
return(snapshots[idx + 1]);
}
return(null);
}
public int GetHoursOffset(SimDateTime sdt)
{
DateTime dt1 = new DateTime(Year, Month, Day, Hour, 0, 0);
DateTime dt2 = new DateTime(sdt.Year, sdt.Month, sdt.Day, sdt.Hour, 0, 0);
float h = (float)dt1.Subtract(dt2).TotalHours;
if (h - Math.Floor(h) >= 0.5f)
{
return((int)(h) + 1);
}
return((int)h);
}
public SimDateTime AddHours(int hours)
{
DateTime dt = new DateTime(Year, Month, Day, Hour, 0, 0);
DateTime dt2 = dt.AddHours(hours);
SimDateTime sdt = new SimDateTime();
sdt.Year = dt2.Year;
sdt.Month = dt2.Month;
sdt.Day = dt2.Day;
sdt.Hour = dt2.Hour;
return(sdt);
}
public int CompareTo(object obj)
{
SimDateTime sdt = obj as SimDateTime;
if (sdt == null)
{
return(1);
}
string s1 = this.ToString();
string s2 = sdt.ToString();
return(string.Compare(s1, s2, true));
}
public static SimDateTime FromFileName(string fileName)
{
SimDateTime sdt = null;
try
{
int idx = fileName.IndexOf("MAP_");
if (idx > 0)
{
string dateTimePart = fileName.Substring(idx + 4);
sdt = new SimDateTime(dateTimePart);
}
}
catch { }
return(sdt);
}
public static SimDateTimeRange BuildRange(SimDateTime dtStart, int rangeSize)
{
EarthModel earth = new EarthModel(dtStart, true, (int)AbsoluteConstants.HoursPerDay);
if (SimulationData.AvailableSnapshots.Contains(dtStart))
{
SimDateTime sdt = dtStart.AddHours((rangeSize - 1) * earth.SnapshotLength);
SimDateTime dtEnd = SimulationData.SelectNearestSnapshot(sdt);
if (dtEnd != null)
{
return(new SimDateTimeRange(earth, dtStart, dtEnd));
}
}
return(null);
}
public static void LookupDataFiles(string category)
{
lock (_availableSnapshotsLock)
{
try
{
_availableSnapshots.Clear();
List <string> files = GetDataFiles(category);
foreach (string file in files)
{
string fileName = Path.GetFileNameWithoutExtension(file);
SimDateTime sdt = SimDateTime.FromFileName(fileName);
string dataType = fileName.Substring(0, 4).ToUpperInvariant();
if (_availableSnapshots.Contains(sdt) == false)
{
_availableSnapshots.Add(sdt);
}
if (_availableDataTypes.Contains(dataType) == false)
{
_availableDataTypes.Add(dataType);
}
}
_availableSnapshots.Sort();
if (SnapshotListChanged != null)
{
SnapshotListChanged(null, EventArgs.Empty);
}
}
catch (Exception ex)
{
string s = ex.Message;
}
}
}
public static SimDateTime SelectNearestSnapshot(SimDateTime sdt)
{
List <SimDateTime> snapshots = AvailableSnapshots;
if (snapshots != null && snapshots.Count > 0)
{
if (snapshots.Contains(sdt))
{
return(sdt);
}
int minOffset = 32768;
foreach (SimDateTime val in snapshots)
{
int offset = Math.Abs(val.GetHoursOffset(sdt));
if (offset < minOffset)
{
minOffset = offset;
}
}
foreach (SimDateTime val in snapshots)
{
int offset = Math.Abs(val.GetHoursOffset(sdt));
if (offset == minOffset)
{
return(val);
}
}
return(snapshots[0]);
}
return(null);
}
public SimDateTimeRange(EarthModel earth, SimDateTime dtStart, SimDateTime dtEnd)
{
this.Start = dtStart;
this.End = dtEnd;
this.Earth = earth;
AtmList = new List <Atmosphere>();
SfcList = new List <SurfaceLevel>();
for (SimDateTime sdt = dtStart; sdt.CompareTo(dtEnd) <= 0; sdt = sdt.AddHours(earth.SnapshotLength))
{
Atmosphere atm = null;
SurfaceLevel sfc = null;
try
{
earth.SetUTC(sdt);
atm = new Atmosphere(earth, true);
sfc = new SurfaceLevel(earth, true);
}
catch
{
atm = null;
sfc = null;
}
if (atm != null)
{
AtmList.Add(atm);
}
if (sfc != null)
{
SfcList.Add(sfc);
}
}
}
