// public bool Available { get; set; }
// public bool IsChosen { get; set; }
public override void Initialize(DestinationSampler destinationSampler, int destinationParcelId, int destinationParcelSequence, SegmentZone destinationSegmentZone)
{
_weightFromOrigin = destinationSampler._originSegmentZone.GetWeight(destinationSegmentZone.Id);
_totalWeightFromOrigin = destinationSampler._originSegmentZone.TotalWeight;
TotalWeightFromDestination = destinationSegmentZone.TotalWeight;
ParcelId = destinationParcelId;
//if (Global.Configuration.DestinationScale == Constants.DestinationScale.ZONE) {
// return;
//}
SizeFromDestination = destinationSegmentZone.GetSize(destinationParcelSequence);
TotalSizeFromDestination = destinationSegmentZone.TotalSize;
}
private TSampleItem GetDestination <TSampleItem>(RandomUniform01 randomUniform01, IParcel originParcel, SegmentZone originSegmentZone, IParcel excludedParcel, SegmentZone excludedSegmentZone) where TSampleItem : ISampleItem, new()
{
var destinationZoneId = 0;
SegmentZone destinationSegmentZone = null;
var destinationParcelSequence = 0;
var destinationParcelId = 0;
var destinationParcelIsValid = false;
var random = randomUniform01.Uniform01() * originSegmentZone.TotalWeight;
if (random > .001)
{
var total = 0D;
// draw the zone
foreach (var weight in originSegmentZone.RankedWeights)
{
total += weight.Value;
if (total <= random)
{
continue;
}
destinationZoneId = weight.Id;
destinationSegmentZone = _segmentZones[weight.Id];
break;
}
}
if (destinationSegmentZone != null && destinationSegmentZone.Key == 0)
{
}
if (destinationSegmentZone == null)
{
destinationZoneId = originParcel.ZoneId;
destinationSegmentZone = originSegmentZone;
}
var excludedSize = 0D;
if (Global.Settings.DestinationScale == Global.Settings.DestinationScales.Parcel)
{
if (destinationZoneId == originParcel.ZoneId)
{
excludedSize += originSegmentZone.GetSize(originParcel.Sequence);
}
if (excludedParcel != null && destinationZoneId == excludedParcel.ZoneId)
{
excludedSize += excludedSegmentZone.GetSize(excludedParcel.Sequence);
}
}
if (Global.Settings.DestinationScale == Global.Settings.DestinationScales.Zone)
{
if (destinationSegmentZone.Key == 0)
{
}
destinationParcelId = destinationSegmentZone.Key;
destinationParcelSequence = 0;
destinationParcelIsValid = true;
}
else
{
// if (destinationSegmentZone.TotalSize - excludedSize < Constants.EPSILON) {
// Console.WriteLine(originSegmentZone.Id);
// Console.WriteLine(originSegmentZone.TotalWeight);
// Console.WriteLine(originSegmentZone.TotalSize);
// Console.WriteLine(destinationSegmentZone.Id);
// Console.WriteLine(destinationSegmentZone.TotalWeight);
// Console.WriteLine(destinationSegmentZone.TotalSize);
// Console.WriteLine(excludedSize);
// }
random = randomUniform01.Uniform01() * (destinationSegmentZone.TotalSize - excludedSize);
if (random > .001)
{
var total = 0D;
// draw the parcel within zone
foreach (var size in destinationSegmentZone.RankedSizes)
{
if (Global.Settings.DestinationScale == Global.Settings.DestinationScales.MicroZone ||
(originParcel.Id != size.Id && (excludedParcel == null || excludedParcel.Id != size.Id)))
{
total += size.Value;
}
if (total <= random)
{
continue;
}
// don't include the drawn parcel if the parcel has no size
if (size.Value >= Global.Configuration.MinParcelSize)
{
destinationParcelId = size.Id;
destinationParcelSequence = size.Sequence;
destinationParcelIsValid = true;
}
break;
}
}
}
if (Global.Settings.DestinationScale != Global.Settings.DestinationScales.Zone && !destinationParcelIsValid)
{
return(default(TSampleItem));
}
var sampleItem = new TSampleItem();
sampleItem.Initialize(this, destinationParcelId, destinationParcelSequence, destinationSegmentZone);
if (destinationParcelIsValid)
{
sampleItem.ExcludedSize = excludedSize;
}
return(sampleItem);
}