public static void Save(SegmentZone segmentZone, BinaryWriter writer)
{
writer.Write(segmentZone._parcelSizes.Length);
writer.Write(segmentZone._zoneWeights.Length);
writer.Write(segmentZone.Id);
writer.Write(segmentZone.TotalSize);
writer.Write(segmentZone.TotalWeight);
foreach (var item in segmentZone._parcelSizes)
{
writer.Write(item.Id);
writer.Write(item.Value);
}
foreach (var index in segmentZone._rankedSizeIndices)
{
writer.Write(index);
}
foreach (var weight in segmentZone._zoneWeights)
{
writer.Write(weight);
}
foreach (var index in segmentZone._rankedWeightIndices)
{
writer.Write(index);
}
}
// public DestinationSampler(ChoiceProbabilityCalculator choiceProbabilityCalculator, int segment, int sampleSize, IParcel originParcel, IParcel excludedParcel, IParcel chosenParcel) {
// _choiceProbabilityCalculator = choiceProbabilityCalculator;
// _segmentZones = Global.SegmentZones[segment];
// _sampleSize = sampleSize;
//
// _originParcel = originParcel;
// _originSegmentZone = _segmentZones[originParcel.ZoneId];
//
// if (excludedParcel != null) {
// _excludedParcel = excludedParcel;
// _excludedSegmentZone = _segmentZones[excludedParcel.ZoneId];
// }
//
// if (chosenParcel != null) {
// _chosenParcel = chosenParcel;
// _chosenSegmentZone = _segmentZones[chosenParcel.ZoneId];
// }
//
// if (_choiceProbabilityCalculator.ModelIsInEstimationMode && chosenParcel == null) {
// throw new ChosenParcelNotSetInEstimationModeException();
// }
// }
public DestinationSampler(ChoiceProbabilityCalculator choiceProbabilityCalculator, int segment, int sampleSize, IParcel originParcel, IParcel excludedParcel, IParcel usualParcel, IParcel chosenParcel)
{
_choiceProbabilityCalculator = choiceProbabilityCalculator;
_segmentZones = Global.SegmentZones[segment];
_sampleSize = sampleSize;
_originParcel = originParcel;
_originSegmentZone = _segmentZones[originParcel.ZoneId];
if (excludedParcel != null)
{
_excludedParcel = excludedParcel;
_excludedSegmentZone = _segmentZones[excludedParcel.ZoneId];
}
if (usualParcel != null)
{
_usualParcel = usualParcel;
_usualSegmentZone = _segmentZones[usualParcel.ZoneId];
}
if (chosenParcel != null)
{
_chosenParcel = chosenParcel;
_chosenSegmentZone = _segmentZones[chosenParcel.ZoneId];
}
if (_choiceProbabilityCalculator.ModelIsInEstimationMode && chosenParcel == null)
{
throw new ChosenParcelNotSetInEstimationModeException();
}
}
public DestinationSampler(ChoiceProbabilityCalculator choiceProbabilityCalculator, int segment, int sampleSize, ITourWrapper tour, ITripWrapper trip, IParcel chosenParcel)
{
_choiceProbabilityCalculator = choiceProbabilityCalculator;
_segmentZones = Global.SegmentZones[segment];
_sampleSize = sampleSize;
_tourOriginParcel = tour.OriginParcel;
_tourOriginSegmentZone = _segmentZones[_tourOriginParcel.ZoneId];
_tripOriginParcel = trip.OriginParcel;
_tripOriginSegmentZone = _segmentZones[_tripOriginParcel.ZoneId];
if (_tourOriginParcel == null || _tripOriginSegmentZone == null)
{
}
if (chosenParcel != null)
{
_chosenParcel = chosenParcel;
_chosenSegmentZone = _segmentZones[chosenParcel.ZoneId];
}
if (_choiceProbabilityCalculator.ModelIsInEstimationMode && chosenParcel == null)
{
throw new ChosenParcelNotSetInEstimationModeException();
}
}
public static SegmentZone[] Deserialize(Stream serializationStream)
{
using (var reader = new BinaryReader(serializationStream)) {
var totalSegmentZones = reader.ReadInt32();
var arraySize = reader.ReadInt32();
var segmentZones = new SegmentZone[arraySize];
for (var i = 0; i < totalSegmentZones; i++)
{
var index = reader.ReadInt32();
segmentZones[index] = SegmentZone.Load(reader);
}
return(segmentZones);
}
}
public DestinationSampler(ChoiceProbabilityCalculator choiceProbabilityCalculator, int segment, int sampleSize, IParcel originParcel, IParcel chosenParcel)
{
_choiceProbabilityCalculator = choiceProbabilityCalculator;
_segmentZones = Global.SegmentZones[segment];
_sampleSize = sampleSize;
_originParcel = originParcel;
_originSegmentZone = _segmentZones[originParcel.ZoneId];
if (chosenParcel != null)
{
_chosenParcel = chosenParcel;
_chosenSegmentZone = _segmentZones[chosenParcel.ZoneId];
}
//JLB 20120329 removed these lines because usual work location model doesn't set a sampled dest to chosen when it is the residence location
// if (_choiceProbabilityCalculator.ModelIsInEstimationMode && chosenParcel == null) {
// throw new ChosenParcelNotSetInEstimationModeException();
// }
}
public static void Serialize(Stream serializationStream, SegmentZone[] segmentZones)
{
using (var writer = new BinaryWriter(serializationStream)) {
var totalSegmentZones = segmentZones.Count(x => x != null);
var arraySize = segmentZones.Length;
writer.Write(totalSegmentZones);
writer.Write(arraySize);
for (var index = 0; index < arraySize; index++)
{
if (segmentZones[index] == null)
{
continue;
}
writer.Write(index);
SegmentZone.Save(segmentZones[index], writer);
}
}
}
public static SegmentZone Load(BinaryReader reader)
{
var parcelCount = reader.ReadInt32();
var zoneCount = reader.ReadInt32();
var segmentZone = new SegmentZone(parcelCount, zoneCount)
{
Id = reader.ReadInt32(),
TotalSize = reader.ReadDouble(),
TotalWeight = reader.ReadDouble()
};
for (var i = 0; i < parcelCount; i++)
{
segmentZone._parcelSizes[i] = new ParcelSize(reader.ReadInt32(), reader.ReadDouble());
}
segmentZone._rankedSizeIndices = new int[parcelCount];
for (var i = 0; i < parcelCount; i++)
{
segmentZone._rankedSizeIndices[i] = reader.ReadInt32();
}
for (var i = 0; i < zoneCount; i++)
{
segmentZone._zoneWeights[i] = reader.ReadDouble();
}
segmentZone._rankedWeightIndices = new int[zoneCount];
for (var i = 0; i < zoneCount; i++)
{
segmentZone._rankedWeightIndices[i] = reader.ReadInt32();
}
return(segmentZone);
}
public abstract void Initialize(DestinationSampler destinationSampler, int destinationParcelId, int destinationParcelSequence, SegmentZone destinationSegmentZone);
public override void Initialize(DestinationSampler destinationSampler, int destinationParcelId, int destinationParcelSequence, SegmentZone destinationSegmentZone)
{
_tourWeightFromOrigin = destinationSampler._tourOriginSegmentZone.GetWeight(destinationSegmentZone.Id);
_totalTourWeightFromOrigin = destinationSampler._tourOriginSegmentZone.TotalWeight;
_tripWeightFromOrigin = destinationSampler._tripOriginSegmentZone.GetWeight(destinationSegmentZone.Id);
_totalTripWeightFromOrigin = destinationSampler._tripOriginSegmentZone.TotalWeight;
TotalWeightFromDestination = destinationSegmentZone.TotalWeight;
//if (Global.Configuration.DestinationScale == Constants.DestinationScale.ZONE) {
// return;
//}
ParcelId = destinationParcelId;
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);
}
