public static void SaveEquityCurve(
SymbolInformation symbol,
EvaluationResult result,
string folderName)
{
var pane = new GraphPane();
pane.Title.Text = $"Equity Curve";
pane.Title.FontSpec.Size = 8;
pane.Chart.Fill.IsScaled = false;
pane.Chart.Fill.Brush = new SolidBrush(Color.DimGray);
pane.Fill.Brush = new SolidBrush(Color.DimGray);
pane.Legend.Fill.Brush = new SolidBrush(Color.DimGray);
pane.Legend.FontSpec.Size = 6;
var curve = pane.AddCurve("% Gain", new double[] { }, new double[] { }, LineColors[0], SymbolType.None);
curve.Line.Width = 2;
curve.Line.IsVisible = true;
curve.Line.IsAntiAlias = true;
foreach (var(day, equity) in result.EquityCurve)
{
curve.AddPoint(new XDate(day), equity);
}
pane.XAxis.Type = AxisType.Date;
pane.XAxis.Scale.FontSpec.Size = 6;
pane.XAxis.MinorGrid.IsVisible = true;
pane.XAxis.MajorGrid.IsVisible = true;
pane.YAxis.Scale.FontSpec.Size = 6;
pane.YAxis.MinorGrid.IsVisible = true;
pane.YAxis.MajorGrid.IsVisible = true;
// force an axischange to plot all data and recalculate all axis
// this is normally done by the control, but this is not possible in mvc3
var bm = new Bitmap(1, 1);
using (var g = Graphics.FromImage(bm))
{
pane.ReSize(g, new RectangleF(0, 0, 1280 * 5, 960 * 5));
pane.AxisChange(g);
}
// create a stream to store a PNG-format image
var actualFolder = Path.Combine(folderName, symbol.ISIN);
Directory.CreateDirectory(actualFolder);
var image = pane.GetImage(true);
image.Save(
Path.Combine(
actualFolder,
$"EquityCurve.png"),
ImageFormat.Png);
}
/// <summary>
/// Render content to a bitmap.
/// </summary>
protected override void Render(Bitmap bitmap, Rectangle renderRect)
{
using (var graphics = Graphics.FromImage(bitmap))
{
graphics.SetClip(renderRect);
_graphPane.ReSize(graphics, new RectangleF(0, 0, bitmap.Width, bitmap.Height));
_graphPane.Draw(graphics);
}
}
public static string SaveDataToPng(double[] data, int id)
{
ZedGraphControl zedGraphControl1 = new ZedGraphControl();
GraphPane paneA = new GraphPane();
PointPairList listA = new PointPairList();
paneA.Title.IsVisible = false;
paneA.XAxis.IsVisible = false;
paneA.YAxis.IsVisible = false;
if (id != 0)
{
paneA.XAxis.Scale.Max = 300000;
}
else
{
paneA.XAxis.Scale.Max = 550000;
}
for (int i = 0; i < data.Length; i++)
{
listA.Add(i, data[i]);
}
LineItem myCurveA = paneA.AddCurve("", listA, Color.Blue, SymbolType.None);
using (Graphics g = zedGraphControl1.CreateGraphics())
{
paneA.AxisChange(g);
paneA.ReSize(g, new RectangleF(0, 0, 1800, 300));
}
string url = @"D:\\PipeWeb\\AdImages\\";
string filename = DateTime.Now.ToString("yyyy-MM-dd") + "--" + DateTime.Now.Hour.ToString() + "-" + DateTime.Now.Minute.ToString() + "-" + DateTime.Now.Second.ToString() + "--" + id.ToString();//以日期时间命名，避免文件名重复
string strName = url + filename + ".png";
if (!Directory.Exists(url)) //如果不存在就创建file文件夹
{
Directory.CreateDirectory(url); //创建该文件夹
paneA.GetImage().Save(strName, ImageFormat.Png);
}
else
{
paneA.GetImage().Save(strName, ImageFormat.Png);
}
zedGraphControl1.Dispose();
return(strName);
}
