/// <summary>
/// Removes a key point with the given index.
/// </summary>
/// <param name = "index">The index of the key point to remove.</param>
public override void Remove(int index)
{
KeyPoint remove = _data[index];
// Update distance for all data following this index.
TMath excessDistance = _zero;
if (index != _data.Count - 1)
{
KeyPoint next = _data[index + 1];
// Find excess distance
excessDistance = DistanceBetween(remove.Value, next.Value);
if (index != 0)
{
// Substract new distance from previous point.
TMath newDistance = DistanceBetween(_data[index - 1].Value, next.Value);
excessDistance = Operator <TMath> .Subtract(excessDistance, newDistance);
}
// Update by adding a pending operation to the range of all following data.
_data.AddOperation(
d =>
{
d.Position = Operator <TMath> .Subtract(d.Position, excessDistance);
return(d);
},
new Interval <int>(index + 1, _data.Count - 1));
}
_data.RemoveAt(index);
// Update data range.
if (_data.Count == 0)
{
_dataRange = null;
}
else
{
_dataRange = new Interval <TMath>(
_zero,
Operator <TMath> .Subtract(DataRange.End, excessDistance));
}
}
public void RemoveTest()
{
PerformAllOperations();
Random rand = new Random();
while (_originalData.Count > 0)
{
// Remove.
int removeIndex = rand.Next(_originalData.Count);
_originalData.RemoveAt(removeIndex);
_list.RemoveAt(removeIndex);
// Verify.
for (int i = 0; i < _originalData.Count; ++i)
{
Assert.Equal(_originalData[i], _list[i]);
}
}
}