private void ChartForm_Load(object sender, EventArgs e)
{
oandaApi = new OandaAPI();
candles = oandaApi.GetCandles(100, instrument, granularity).ToList();
chart1.Series.Clear();
chart1.ChartAreas.Clear();
chart1.Titles.Clear();
float low = candles.Select(c => c.lowMid).Min();
float high = candles.Select(c => c.highMid).Max();
ChartArea chartArea = new ChartArea();
chart1.ChartAreas.Add(chartArea);
chartArea.AxisX.LabelStyle.Format = "T";
double n = 0.1d;
while (true)
{
double d = Math.Round((high - low) / n);
if (d <= 2)
{
break;
}
n *= 2;
}
chartArea.AxisY.Maximum = Math.Ceiling(high / n) * n;
chartArea.AxisY.Minimum = Math.Floor(low / n) * n;
Series candleSeries = new Series();
chart1.Series.Add(candleSeries);
candleSeries.XValueType = ChartValueType.DateTime;
candleSeries.ChartType = SeriesChartType.Candlestick;
foreach (var candle in candles)
{
candleSeries.Points.Add(new DataPoint(candle.DateTime.ToOADate(), new double[] { candle.highMid, candle.lowMid, candle.openMid, candle.closeMid }));
}
}
