private static ContractTransactionInfo BuildContractInfo(Dictionary <string, string> lineDictionary, DateTime transactionDate)
{
if (null == lineDictionary || lineDictionary.Count == 0)
{
return(null);
}
int index = lineDictionary["PRODUCTID"].IndexOf('_');
if (index < 0)
{
return(null);
}
string commodity = lineDictionary["PRODUCTID"].Substring(0, index);
string month = lineDictionary["DELIVERYMONTH"];
if (string.IsNullOrEmpty(month) || month.Equals("小计"))
{
return(null);
}
double open = DoubleUtility.Parse(lineDictionary["OPENPRICE"], GlobalDefinition.FormatProvider, -1);
double high = DoubleUtility.Parse(lineDictionary["HIGHESTPRICE"], GlobalDefinition.FormatProvider, -1);
double low = DoubleUtility.Parse(lineDictionary["LOWESTPRICE"], GlobalDefinition.FormatProvider, -1);
double close = DoubleUtility.Parse(lineDictionary["CLOSEPRICE"], GlobalDefinition.FormatProvider, -1);
double settle = DoubleUtility.Parse(lineDictionary["SETTLEMENTPRICE"], GlobalDefinition.FormatProvider,
-1);
int volume = Int32.Parse(lineDictionary["VOLUME"], NumberStyles.Any, GlobalDefinition.FormatProvider);
int position = Int32.Parse(lineDictionary["OPENINTEREST"], NumberStyles.Any,
GlobalDefinition.FormatProvider);
return(new ContractTransactionInfo(transactionDate, "shfe", commodity, month, open, high, low, close,
settle, volume, position));
}
protected bool SetDoubleProperty(double value, double epsilon, ref double property, Expression <Func <double> > fireNotifyProperty)
{
if (!DoubleUtility.AreClose(value, property))
{
return(SetProperty(value, ref property, fireNotifyProperty));
}
return(false);
}
public override void Draw(DrawingContext dc)
{
if (!IsVisible)
{
return;
}
//
// https://en.wikipedia.org/wiki/B%C3%A9zier_curve
//
base.Draw(dc);
Vector vector = EndPoint - StartPoint;
if (vector.Length > 0)
{
// Bezier curve defined by StartPoint, EndPoint and BendingOffset
// Drawing the curve is no problem, determining the EndConnectorPoint is more difficult.
Vector endApproachVector = !DoubleUtility.AreClose(0.0, BendingOffset) ? GetDirectionVectorOnCurve(EndOffset) : vector;
var v1 = endApproachVector * Utils.Rotation30Matrix;
var v2 = endApproachVector * Utils.RotationMin30Matrix;
v1.Normalize();
v2.Normalize();
var p3 = EndConnectorPoint - v1 * ArrowLength;
var p4 = EndConnectorPoint - v2 * ArrowLength;
dc.DrawLine(Utils.DefaultPen, EndConnectorPoint, p3);
dc.DrawLine(Utils.DefaultPen, EndConnectorPoint, p4);
//// https://books.google.nl/books?id=7MtkGjIgOxkC&pg=PA135&lpg=PA135&dq=drawingcontext+drawgeometry+bezier+wpf&source=bl&ots=TApW1D5bmd&sig=vlS5sD3lPpH3OfQfTeaRa3bsLxI&hl=nl&sa=X&ved=0CFcQ6AEwBmoVChMI0qXZ4YGSyAIV5afbCh1Jfgzd#v=onepage&q=drawingcontext%20drawgeometry%20bezier%20wpf&f=false
if (!DoubleUtility.AreClose(0.0, BendingOffset))
{
PathGeometry geo = new PathGeometry();
PathFigure figure = new PathFigure();
figure.StartPoint = StartPoint;
PolyQuadraticBezierSegment bezier = new PolyQuadraticBezierSegment();
bezier.Points.Add(BendingPoint);
bezier.Points.Add(EndPoint);
figure.Segments.Add(bezier);
geo.Figures.Add(figure);
dc.DrawGeometry(null, GetMainLinePen(), geo);
}
else
{
dc.DrawLine(GetMainLinePen(), StartPoint, EndPoint);
}
}
}
public Collection <ContractTransactionInfo> GetContractList(string htmlText, DateTime transactionDate)
{
if (string.IsNullOrWhiteSpace(htmlText))
{
return(new Collection <ContractTransactionInfo>());
}
htmlParser.LoadHtml(htmlText);
var table = htmlParser.DocumentNode.SelectNodes("//table[@id=\"senfe\"]");
if (null == table)
{
return(new Collection <ContractTransactionInfo>());
}
var result = new Collection <ContractTransactionInfo>();
var rows = table.Descendants("tr").Skip(1);
foreach (var row in rows)
{
var columns = row.Descendants("td").ToArray();
if (null == columns || columns.Count() == 0 || !Char.IsDigit(columns[0].InnerText.Last()))
{
continue;
}
int index = columns[0].InnerText.Length - 1;
while (index >= 0 && Char.IsDigit(columns[0].InnerText[index]))
{
--index;
}
string commodity = columns[0].InnerText.Substring(0, index + 1);
string month = columns[0].InnerText.Substring(index + 1);
double open = DoubleUtility.Parse(columns[2].InnerText, GlobalDefinition.FormatProvider, -1);
double high = DoubleUtility.Parse(columns[3].InnerText, GlobalDefinition.FormatProvider, -1);
double low = DoubleUtility.Parse(columns[4].InnerText, GlobalDefinition.FormatProvider, -1);
double close = DoubleUtility.Parse(columns[5].InnerText, GlobalDefinition.FormatProvider, -1);
double settle = DoubleUtility.Parse(columns[6].InnerText, GlobalDefinition.FormatProvider, -1);
int volume = Int32.Parse(columns[9].InnerText, NumberStyles.Any, GlobalDefinition.FormatProvider);
int position = Int32.Parse(columns[10].InnerText, NumberStyles.Any, GlobalDefinition.FormatProvider);
result.Add(new ContractTransactionInfo(transactionDate, "czce", commodity, month, open, high, low, close, settle, volume, position));
}
return(result);
}
private static bool AreIntersecting(Point p1, Point p2, Point p3, Point p4)
{
var dx12 = p2.X - p1.X;
var dy12 = p2.Y - p1.Y;
var dx34 = p4.X - p3.X;
var dy34 = p4.Y - p3.Y;
var denominator = dy12 * dx34 - dx12 * dy34;
if (DoubleUtility.AreClose(denominator, 0))
{
return(false);
}
var t1 = ((p1.X - p3.X) * dy34 + (p3.Y - p1.Y) * dx34) / denominator;
var t2 = -((p3.X - p1.X) * dy12 + (p1.Y - p3.Y) * dx12) / denominator;
//var intersection = new Point(p1.X + dx12*t1, p1.Y + dy12*t1);
return(t1 >= 0 && t1 <= 1.0 && t2 >= 0.0 && t2 <= 1.0);
}
public Collection <ContractTransactionInfo> GetContractList(string htmlText, DateTime transactionDate)
{
if (string.IsNullOrWhiteSpace(htmlText))
{
return(new Collection <ContractTransactionInfo>());
}
htmlParser.LoadHtml(htmlText);
var tableContent = htmlParser.DocumentNode.SelectNodes("//table[@class=\"table\"]");
if (null == tableContent)
{
return(new Collection <ContractTransactionInfo>());
}
var result = new Collection <ContractTransactionInfo>();
foreach (var row in tableContent.Descendants("tr").Skip(1))
{
var columns = row.Descendants("td").ToArray();
if (!Char.IsDigit(columns[1].InnerText.First()))
{
continue;
}
string commodity = DceCommodityCodeHelper.GetCommodityCode(columns[0].InnerText);
if (string.IsNullOrWhiteSpace(commodity))
{
throw new HtmlParseException("DCE Daily Transaction Parse Error at" + transactionDate.ToString(GlobalDefinition.DateFormat, GlobalDefinition.FormatProvider));
}
string month = columns[1].InnerText.Trim();
double open = DoubleUtility.Parse(columns[2].InnerText, GlobalDefinition.FormatProvider, -1);
double high = DoubleUtility.Parse(columns[3].InnerText, GlobalDefinition.FormatProvider, -1);
double low = DoubleUtility.Parse(columns[4].InnerText, GlobalDefinition.FormatProvider, -1);
double close = DoubleUtility.Parse(columns[5].InnerText, GlobalDefinition.FormatProvider, -1);
double settle = DoubleUtility.Parse(columns[7].InnerText, GlobalDefinition.FormatProvider, -1);
int volume = Int32.Parse(columns[10].InnerText, NumberStyles.Any, GlobalDefinition.FormatProvider);
int position = Int32.Parse(columns[11].InnerText, NumberStyles.Any, GlobalDefinition.FormatProvider);
result.Add(new ContractTransactionInfo(transactionDate, "dce", commodity, month, open, high, low, close, settle, volume, position));
}
return(result);
}
public bool Equals(ContractTransactionInfo another)
{
if (null == another)
{
return(false);
}
if (this == another)
{
return(true);
}
string dateString1 = TransactionDate.ToString(GlobalDefinition.DateFormat, GlobalDefinition.FormatProvider);
string dateString2 = another.TransactionDate.ToString(GlobalDefinition.DateFormat, GlobalDefinition.FormatProvider);
return(dateString1.Equals(dateString2) && Commodity.Equals(another.Commodity) &&
DoubleUtility.Equals(OpenPrice, another.OpenPrice) && DoubleUtility.Equals(HighPrice, another.HighPrice) &&
DoubleUtility.Equals(LowPrice, another.LowPrice) && DoubleUtility.Equals(ClosePrice, another.ClosePrice) &&
DoubleUtility.Equals(SettlePrice, another.SettlePrice) && Volume == another.Volume && Position == another.Position);
}
public override void Draw(DrawingContext dc)
{
if (!IsVisible)
{
return;
}
base.Draw(dc);
//
// p2
// /\
// p4 _/ \_ p5
// \ /
// \/_ p3
// |
// p1
//
Vector v = EndPoint - StartPoint;
var vn = v;
vn.Normalize();
if (v.Length > 0)
{
//
// Startpoint that lies on the edge of an UmlDiagramClass
//
var p1 = StartConnectorPoint;
//
// Endpoint that lies on the edge of an UmlDiagramClass
//
var p2 = EndConnectorPoint;
Vector endApproachVector = !DoubleUtility.AreClose(0.0, BendingOffset) ? GetDirectionVectorOnCurve(EndOffset) : vn;
var v1 = endApproachVector * Utils.Rotation30Matrix;
var v2 = endApproachVector * Utils.RotationMin30Matrix;
v1.Normalize();
v2.Normalize();
var p3 = p2 - 2 * endApproachVector * Math.Cos(30 * Math.PI / 180) * ArrowLength;
var p4 = p2 - v1 * ArrowLength;
var p5 = p2 - v2 * ArrowLength;
PathGeometry geo = new PathGeometry();
PathFigure figure = new PathFigure();
figure.StartPoint = StartPoint;
if (!DoubleUtility.AreClose(0.0, BendingOffset))
{
PolyQuadraticBezierSegment bezier = new PolyQuadraticBezierSegment();
bezier.Points.Add(BendingPoint);
bezier.Points.Add(EndPoint);
figure.Segments.Add(bezier);
}
else
{
LineSegment lineSegment = new LineSegment(EndPoint, true);
figure.Segments.Add(lineSegment);
}
PathGeometry geo2 = new PathGeometry();
PathFigure arrowFigure = new PathFigure();
arrowFigure.StartPoint = p2;
PolyLineSegment polyLineSegment = new PolyLineSegment(new[] { p4, p3, p5, p2 }, true);
arrowFigure.Segments.Add(polyLineSegment);
geo.Figures.Add(figure);
geo2.Figures.Add(arrowFigure);
dc.DrawGeometry(null, Utils.DefaultPen, geo);
dc.DrawGeometry(GetFillBrush(), Utils.DefaultPen, geo2);
}
}