//
// Copy the data of the Value object into the buffer provided by 'sequences'.
// The 'sequences' is a list of sequences with variable length.
// The number of items contained in the outer list of 'sequences' is the number of sequences in the Value object.
// Each element of the outer list represents a sequence.
// Each sequence, represented by List<T>, contains a variable number of samples.
// Each sample consits of a fixed number of elements with type of 'T'. The number of elements is determined by the variable shape.
// The number of samples = the count of elements in List<T> / the count of elements of the sample
// The shape of the variable should match the shape of the Value object.
//
public static void CopyVariableValueTo <T>(this Value value, Variable sampleVariable, List <List <T> > sequences)
{
if (typeof(T).Equals(typeof(float)))
{
if (value.GetDataType() != DataType.Float)
{
throw new ArgumentException("The value type does not match the list type.");
}
var seqVec = new FloatVectorVector();
value.CopyVariableValueToFloat(sampleVariable, seqVec);
sequences.Clear();
foreach (var seq in seqVec)
{
var seqList = seq as IEnumerable <T>;
if (seqList == null)
{
throw new TypeAccessException("Cannot convert to the value type.");
}
sequences.Add(new List <T>(seqList));
}
}
else if (typeof(T).Equals(typeof(double)))
{
if (value.GetDataType() != DataType.Double)
{
throw new ArgumentException("The value type does not match the list type.");
}
var seqVec = new DoubleVectorVector();
value.CopyVariableValueToDouble(sampleVariable, seqVec);
sequences.Clear();
foreach (var seq in seqVec)
{
var seqList = seq as IEnumerable <T>;
if (seqList == null)
{
throw new TypeAccessException("Cannot convert to the value type.");
}
sequences.Add(new List <T>(seqList));
}
}
else
{
throw new ArgumentException("The value type does not match the list type.");
}
}