/// <summary>
/// Creates dataPoints from the actual values.
/// Null points are not permitted in the middle of 2 valid points, these will be replaced with 0
/// </summary>
internal void InitDataPoints(double scaleX, double scaleY, double offSetX, double offSetY)
{
var dataStarted = false;
var dataList = new List <DataPoint>();
for (var i = 0; i < DataValues.Length; i++)
{
if (!dataStarted && DataValues[i].HasValue)
{
dataStarted = true;
}
//look forward. if the null count is equal to the number of items remaining, it means the rest are nulls
if (dataStarted)
{
var nullCount = DataValues.Skip(i - 1).Count(v => v == null);
dataStarted = nullCount != DataValues.Length - i;
}
if (!dataStarted)
{
continue;
}
if (!DataValues[i].HasValue)
{
dataList.Add(new DataPoint(
(i * scaleX) + offSetX,
offSetY - (0 * scaleY),
(i + 1).ToString(),
"0"));
continue;
}
dataList.Add(new DataPoint(
(i * scaleX) + offSetX,
offSetY - (DataValues[i].Value * scaleY),
(i + 1).ToString(),
DataValues[i].Value.ToString(CultureInfo.InvariantCulture)));
}
_dataPoints = dataList.ToArray();
}