private void UpdateData()
{
lock (this)
{
for (int i = 0; i < Count; i++)
{
_re[i] = 2.0 * Math.Sin(2 * Math.PI * i / 20) +
5.0 * Math.Sin(2 * Math.PI * i / 10) +
2.0 * _random.NextDouble();
_im[i] = IsFrequencyDomain ? 0.0 : i;
}
if (IsFrequencyDomain)
{
_transform.run(_re, _im);
for (int i = 0; i < Count; i++)
{
double mag = Math.Sqrt(_re[i] * _re[i] + _im[i] * _im[i]);
_re[i] = 20 * Math.Log10(mag / Count);
_im[i] = i;
}
}
DataSeries.SeriesName = YAxisTitle;
DataSeries.Clear();
DataSeries.Append(_im, _re);
}
}
private void UpdateXyDataSeries()
{
lock (this)
{
for (int i = 0; i < 1024; i++)
{
_re[i] = 2.0 * Math.Sin(2 * Math.PI * i / 20) +
5 * Math.Sin(2 * Math.PI * i / 10) +
2.0 * _random.NextDouble();
_im[i] = -10;
}
_transform.run(_re, _im);
for (int i = 0; i < 1024; i++)
{
double mag = Math.Sqrt(_re[i] * _re[i] + _im[i] * _im[i]);
_re[i] = 20 * Math.Log10(mag / 1024);
_im[i] = i;
}
_xyDataSeries.Clear();
_xyDataSeries.Append(_im, _re);
}
}
