public static string ConvertToString(this IndicatorSize sizeEnum)
{
switch (sizeEnum)
{
case IndicatorSize.OneMin:
return("1min");
case IndicatorSize.FiveMin:
return("5min");
case IndicatorSize.FifteenMin:
return("15min");
case IndicatorSize.ThirtyMin:
return("30min");
case IndicatorSize.SixtyMin:
return("60min");
case IndicatorSize.Daily:
return("daily");
case IndicatorSize.Weekly:
return("weekly");
case IndicatorSize.Monthly:
return("monthly");
default:
throw new NotSupportedException(sizeEnum.ToString());
}
}
public static PointF[] GetIndicatorArrowPoints(PointF p1, PointF p2, IndicatorSize size)
{
int hw = 0;
float tw = 0;
switch (size)
{
case IndicatorSize.Small:
hw = 10;
tw = 0.8f;
break;
case IndicatorSize.Medium:
hw = 16;
tw = 0.8f;
break;
case IndicatorSize.Large:
hw = 22;
tw = 0.8f;
break;
}
PointF[] pf = new PointF[7];
PointF tmp = new PointF();
double angle = Math.Atan2(p2.Y - p1.Y, p2.X - p1.X);
tmp.X = p2.X + (float)(hw * Math.Cos(angle + Math.PI));
tmp.Y = p2.Y + (float)(hw * Math.Sin(angle + Math.PI));
pf[0] = new PointF(
p1.X + (float)(tw * Math.Cos(angle - Math.PI / 2)),
p1.Y + (float)(tw * Math.Sin(angle - Math.PI / 2)));
pf[6] = new PointF(
p1.X + (float)(tw * Math.Cos(angle + Math.PI / 2)),
p1.Y + (float)(tw * Math.Sin(angle + Math.PI / 2)));
pf[3] = p2;
pf[1] = new PointF(
tmp.X + (float)(hw / 4 * Math.Cos(angle - Math.PI / 2)),
tmp.Y + (float)(hw / 4 * Math.Sin(angle - Math.PI / 2)));
pf[2] = new PointF(
tmp.X + (float)(hw / 2 * Math.Cos(angle - Math.PI / 2)),
tmp.Y + (float)(hw / 2 * Math.Sin(angle - Math.PI / 2)));
pf[4] = new PointF(
tmp.X + (float)(hw / 2 * Math.Cos(angle + Math.PI / 2)),
tmp.Y + (float)(hw / 2 * Math.Sin(angle + Math.PI / 2)));
pf[5] = new PointF(
tmp.X + (float)(hw / 4 * Math.Cos(angle + Math.PI / 2)),
tmp.Y + (float)(hw / 4 * Math.Sin(angle + Math.PI / 2)));
return(pf);
}
/// <summary>
/// This API call returns the simple moving average (SMA) values.
/// See also: https://www.investopedia.com/articles/technical/052201.asp and
/// mathematical reference.
/// </summary>
/// <param name="symbol"></param>
/// <param name="size"></param>
/// <param name="timePeriod"></param>
/// <param name="seriesType"></param>
/// <returns></returns>
public async Task <StockIndicator> GetSMAAsync(
string symbol,
IndicatorSize size,
int timePeriod,
IndicatorSeriesType seriesType)
{
if (timePeriod < 1)
{
throw new ArgumentException("Time period must be a positive value");
}
var query = new Dictionary <string, string>()
{
{ StockApiQueryVars.Symbol, symbol },
{ StockApiQueryVars.IndicatorInterval, size.ConvertToString() },
{ StockApiQueryVars.TimePeriod, timePeriod.ToString() },
{ StockApiQueryVars.SeriesType, seriesType.ToString() }
};
var function = ApiFunction.SMA;
return(await RequestTimeSeriesAsync(function, query));
}
public IndicatorArrowProperty()
{
LineColor = Color.Gray;
LineSize = IndicatorSize.Large;
}
