/// <summary>
/// Class that takes in SimulationInput and methods to initialize and execute Monte Carlo simulation
/// </summary>
/// <param name="input">SimulationInput</param>
public MonteCarloSimulation(SimulationInput input)
{
_outputPath = "";
// all field/property defaults should be set here
_input = input;
var result = SimulationInputValidation.ValidateInput(_input);
if (result.IsValid == false)
{
throw new ArgumentException(result.ValidationRule + (!string.IsNullOrEmpty(result.Remarks) ? "; " + result.Remarks : ""));
}
_numberOfPhotons = input.N;
AbsorptionWeightingType = input.Options.AbsorptionWeightingType; // CKH add 12/14/09
TrackStatistics = input.Options.TrackStatistics;
if (TrackStatistics)
{
_simulationStatistics = new SimulationStatistics();
}
_rng = RandomNumberGeneratorFactory.GetRandomNumberGenerator(
input.Options.RandomNumberGeneratorType, input.Options.Seed);
this.SimulationIndex = input.Options.SimulationIndex;
_tissue = TissueFactory.GetTissue(input.TissueInput, input.Options.AbsorptionWeightingType, input.Options.PhaseFunctionType, input.Options.RussianRouletteWeightThreshold);
_source = SourceFactory.GetSource(input.SourceInput, _rng);
// instantiate vb (and associated detectors) for each vb group
_virtualBoundaryController = new VirtualBoundaryController(new List <IVirtualBoundary>());
List <VirtualBoundaryType> dbVirtualBoundaries =
input.Options.Databases.Select(db => db.GetCorrespondingVirtualBoundaryType()).ToList();
foreach (var vbType in EnumHelper.GetValues <VirtualBoundaryType>())
{
IEnumerable <IDetectorInput> detectorInputs = null;
switch (vbType)
{
case VirtualBoundaryType.DiffuseReflectance:
default:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IsReflectanceTally).ToList();
break;
case VirtualBoundaryType.DiffuseTransmittance:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IsTransmittanceTally).ToList();
break;
case VirtualBoundaryType.SpecularReflectance:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IsSpecularReflectanceTally).ToList();
break;
case VirtualBoundaryType.GenericVolumeBoundary:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IsVolumeTally).ToList();
break;
case VirtualBoundaryType.SurfaceRadiance:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IsInternalSurfaceTally).ToList();
break;
case VirtualBoundaryType.pMCDiffuseReflectance:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IspMCReflectanceTally).ToList();
break;
case VirtualBoundaryType.BoundingCylinderVolume:
detectorInputs = input.DetectorInputs.Where(d => d.TallyDetails.IsBoundingVolumeTally).ToList();
break;
}
// make sure VB Controller has at least diffuse reflectance and diffuse transmittance
// may change this in future if tissue OnDomainBoundary changes
if ((detectorInputs.Count() > 0) || (vbType == VirtualBoundaryType.DiffuseReflectance) ||
(vbType == VirtualBoundaryType.DiffuseTransmittance) || (dbVirtualBoundaries.Any(vb => vb == vbType)))
{
var detectors = DetectorFactory.GetDetectors(detectorInputs, _tissue, _rng);
var detectorController = DetectorControllerFactory.GetDetectorController(vbType, detectors, _tissue);
// var detectorController = new DetectorController(detectors);
var virtualBoundary = VirtualBoundaryFactory.GetVirtualBoundary(vbType, _tissue, detectorController);
_virtualBoundaryController.VirtualBoundaries.Add(virtualBoundary);
}
}
// needed?
//_detectorControllers = _virtualBoundaryController.VirtualBoundaries.Select(vb=>vb.DetectorController).ToList();
// set doPMC flag
if (input.Options.Databases.Any(d => d.IspMCDatabase()))
{
doPMC = true;
}
_isCancelled = false;
_isRunning = false;
_resultsAvailable = false;
}
