// Samples a TagInputDistribution and returns a TagInputValue with the sampled value.
public static TagInputValue sampleInput(TagInputDistribution tagInputDist)
{
// Sample the IDistribution.
// Note that only the IContinuousDistribution and IDiscreteDistribution have a Sample function,
// and that the IDistribution by itself does not include a Sample function in the interface.
double sampledValue;
if (tagInputDist.distribution is IDiscreteDistribution)
{
sampledValue = ((IDiscreteDistribution)tagInputDist.distribution).Sample();
}
else if (tagInputDist.distribution is IContinuousDistribution)
{
sampledValue = ((IContinuousDistribution)tagInputDist.distribution).Sample();
}
else
{
throw new Exception("tag distribution is not IDiscreteDistribution or IContinuousDistribution.");
}
// Create a new TagInputValue and populate its fields.
TagInputValue tagInputValue;
tagInputValue.tag = tagInputDist.tag;
tagInputValue.modality = tagInputDist.modality;
tagInputValue.value = sampledValue;
return(tagInputValue);
}
/*
* The delegate method for handling collectionChanged events on the filter for detecting touch events.
* Only called when the RFIDReader is initializing the BernoulliFilterDict.
*/
void touchDistributionDelegate(ConcurrentDictionary <string, Bernoulli> touchDict)
{
foreach (KeyValuePair <string, Bernoulli> item in touchDict)
{
TagInputDistribution tagDict = new TagInputDistribution();
tagDict.tag = item.Key;
tagDict.modality = Modality.touch;
tagDict.distribution = item.Value;
this.tagFeatureDistributions.Enqueue(tagDict);
}
}
/*
* The delegate method for handling collectionChanged events on the filter for detecting velocity events.
* Only called when the RFIDReader is initializing the GaussianFilterDict.
*/
void velocityDistributionDelegate(ConcurrentDictionary <string, Normal> velocityDict)
{
foreach (KeyValuePair <string, Normal> item in velocityDict)
{
TagInputDistribution tagDict = new TagInputDistribution();
tagDict.tag = item.Key;
tagDict.modality = Modality.velocity;
tagDict.distribution = item.Value;
this.tagFeatureDistributions.Enqueue(tagDict);
}
// Don't trigger another report of tag updates until the application has finished processing
// the ones we just enqueued.
// Only called in the velocity distribution delegate because it is called second.
RFIDReader.shouldReportTagDistributions = false;
}
