/// <summary>
/// Add a single point to the <see cref="PointPairList"/> from values of type double.
/// </summary>
/// <param name="x">The X value</param>
/// <param name="y">The Y value</param>
/// <returns>The zero-based ordinal index where the point was added in the list.</returns>
public void Add(double x, double y)
{
_sorted = false;
PointPair2D point = new PointPair2D(x, y);
base.Add(point);
}
/// <summary>
/// Indexer: get the DataPoint instance at the specified ordinal position in the list
/// </summary>
/// <remarks>
/// This method will throw an exception if the index is out of range. This can happen
/// if the index is less than the number of filtered values, or if data points are
/// removed from a filtered dataset with updating the filter (by calling
/// <see cref="FilterData" />).
/// </remarks>
/// <param name="index">The ordinal position in the list of points</param>
/// <returns>Returns a <see cref="PointPair" /> instance. The <see cref="PointPair.Z" />
/// and <see cref="PointPair.Tag" /> properties will be defaulted to
/// <see cref="PointPairBase.Missing" /> and null, respectively.
/// </returns>
public new IPointPair this[int index]
{
get
{
int j = index;
if (_isFiltered)
{
j = _visibleIndicies[index];
}
DataPoint dp = base[j];
PointPair2D pt = new PointPair2D(dp.X, dp.Y);
return(pt);
}
set
{
int j = index;
if (_isFiltered)
{
j = _visibleIndicies[index];
}
DataPoint dp;
dp.X = value.X;
dp.Y = value.Y;
base[j] = dp;
}
}
/// <summary>
/// Add a set of points to the PointPairList from two arrays of type double.
/// If either array is null, then a set of ordinal values is automatically
/// generated in its place (see <see cref="AxisType.Ordinal"/>.
/// If the arrays are of different size, then the larger array prevails and the
/// smaller array is padded with <see cref="PointPairBase.Missing"/> values.
/// </summary>
/// <param name="x">A double[] array of X values</param>
/// <param name="y">A double[] array of Y values</param>
/// <returns>The zero-based ordinal index where the last point was added in the list,
/// or -1 if no points were added.</returns>
public void Add(double[] x, double[] y)
{
int len = 0;
if (x != null)
{
len = x.Length;
}
if (y != null && y.Length > len)
{
len = y.Length;
}
for (int i = 0; i < len; i++)
{
PointPair2D point = new PointPair2D(0, 0);
if (x == null)
{
point.X = (double)i + 1.0;
}
else if (i < x.Length)
{
point.X = x[i];
}
else
{
point.X = PointPair.Missing;
}
if (y == null)
{
point.Y = (double)i + 1.0;
}
else if (i < y.Length)
{
point.Y = y[i];
}
else
{
point.Y = PointPair.Missing;
}
base.Add(point);
}
_sorted = false;
}