/// <summary> /// Draw all the <see c_ref="OHLCBar"/>'s to the specified <see c_ref="Graphics"/> /// device as a candlestick at each defined point. /// </summary> /// <param name="g"> /// A graphic device object to be drawn into. This is normally e.Graphics from the /// PaintEventArgs argument to the Paint() method. /// </param> /// <param name="pane"> /// A reference to the <see c_ref="GraphPane"/> object that is the parent or /// owner of this object. /// </param> /// <param name="curve">A <see c_ref="OHLCBarItem"/> object representing the /// <see c_ref="OHLCBar"/>'s to be drawn.</param> /// <param name="baseAxis">The <see c_ref="Axis"/> class instance that defines the base (independent) /// axis for the <see c_ref="OHLCBar"/></param> /// <param name="valueAxis">The <see c_ref="Axis"/> class instance that defines the value (dependent) /// axis for the <see c_ref="OHLCBar"/></param> /// <param name="scaleFactor"> /// The scaling factor to be used for rendering objects. This is calculated and /// passed down by the parent <see c_ref="GraphPane"/> object using the /// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust /// font sizes, etc. according to the actual size of the graph. /// </param> public void Draw( Graphics g, GraphPane pane, OHLCBarItem curve, Axis baseAxis, Axis valueAxis, float scaleFactor ) { //ValueHandler valueHandler = new ValueHandler( pane, false ); float pixBase, pixHigh, pixLow, pixOpen, pixClose; if ( curve.Points != null ) { //float halfSize = _size * scaleFactor; float halfSize = GetBarWidth( pane, baseAxis, scaleFactor ); using ( Pen pen = !curve.IsSelected ? new Pen( _color, _width ) : new Pen( Selection.Border.Color, Selection.Border.Width ) ) // using ( Pen pen = new Pen( _color, _penWidth ) ) { // Loop over each defined point for ( int i = 0; i < curve.Points.Count; i++ ) { PointPair pt = curve.Points[i]; double date = pt.X; double high = pt.Y; double low = pt.Z; double open = PointPair.Missing; double close = PointPair.Missing; if ( pt is StockPt ) { open = ( pt as StockPt ).Open; close = ( pt as StockPt ).Close; } // Any value set to double max is invalid and should be skipped // This is used for calculated values that are out of range, divide // by zero, etc. // Also, any value <= zero on a log scale is invalid if ( !curve.Points[i].IsInvalid3D && ( date > 0 || !baseAxis._scale.IsLog ) && ( ( high > 0 && low > 0 ) || !valueAxis._scale.IsLog ) ) { pixBase = (int)( baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date ) + 0.5 ); //pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date ); pixHigh = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, high ); pixLow = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, low ); if ( PointPair.IsValueInvalid( open ) ) pixOpen = Single.MaxValue; else pixOpen = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, open ); if ( PointPair.IsValueInvalid( close ) ) pixClose = Single.MaxValue; else pixClose = valueAxis.Scale.Transform( curve.IsOverrideOrdinal, i, close ); if ( !curve.IsSelected && _gradientFill.IsGradientValueType ) { using ( Pen tPen = GetPen( pane, scaleFactor, pt ) ) Draw( g, pane, baseAxis is XAxis || baseAxis is X2Axis, pixBase, pixHigh, pixLow, pixOpen, pixClose, halfSize, tPen ); } else Draw( g, pane, baseAxis is XAxis || baseAxis is X2Axis, pixBase, pixHigh, pixLow, pixOpen, pixClose, halfSize, pen ); } } } } }
/// <summary> /// The Copy Constructor /// </summary> /// <param name="rhs">The <see c_ref="OHLCBarItem"/> object from which to copy</param> public OHLCBarItem( OHLCBarItem rhs ) : base( rhs ) { _bar = rhs._bar.Clone(); }
/// <summary> /// Add a candlestick graph (<see c_ref="OHLCBarItem"/> object) to the plot with /// the given data points (<see c_ref="IPointList"/>) and properties. /// </summary> /// <remarks> /// This is simplified way to add curves without knowledge of the /// <see c_ref="CurveList"/> class. An alternative is to use /// the <see c_ref="ZedGraph.CurveList" /> Add() method. /// Note that the <see c_ref="IPointList" /> /// should contain <see c_ref="StockPt" /> objects instead of <see c_ref="PointPair" /> /// objects in order to contain all the data values required for this curve type. /// </remarks> /// <param name="label">The text label (string) for the curve that will be /// used as a <see c_ref="Legend"/> entry.</param> /// <param name="points">A <see c_ref="IPointList"/> of double precision value pairs that define /// the X and Y values for this curve</param> /// <param name="color">The color to used for the curve line, /// symbols, etc.</param> /// <returns>A <see c_ref="CurveItem"/> class for the newly created curve. /// This can then be used to access all of the curve properties that /// are not defined as arguments to the /// <see c_ref="AddOHLCBar(string,IPointList,Color)"/> method.</returns> public OHLCBarItem AddOHLCBar( string label, IPointList points, Color color ) { OHLCBarItem curve = new OHLCBarItem( label, points, color ); _curveList.Add( curve ); return curve; }
/// <summary> /// The Copy Constructor /// </summary> /// <param name="rhs">The <see c_ref="OHLCBarItem"/> object from which to copy</param> public OHLCBarItem(OHLCBarItem rhs) : base(rhs) { _bar = rhs._bar.Clone(); }
/// <summary> /// Draw all the <see c_ref="OHLCBar"/>'s to the specified <see c_ref="Graphics"/> /// device as a candlestick at each defined point. /// </summary> /// <param name="g"> /// A graphic device object to be drawn into. This is normally e.Graphics from the /// PaintEventArgs argument to the Paint() method. /// </param> /// <param name="pane"> /// A reference to the <see c_ref="GraphPane"/> object that is the parent or /// owner of this object. /// </param> /// <param name="curve">A <see c_ref="OHLCBarItem"/> object representing the /// <see c_ref="OHLCBar"/>'s to be drawn.</param> /// <param name="baseAxis">The <see c_ref="Axis"/> class instance that defines the base (independent) /// axis for the <see c_ref="OHLCBar"/></param> /// <param name="valueAxis">The <see c_ref="Axis"/> class instance that defines the value (dependent) /// axis for the <see c_ref="OHLCBar"/></param> /// <param name="scaleFactor"> /// The scaling factor to be used for rendering objects. This is calculated and /// passed down by the parent <see c_ref="GraphPane"/> object using the /// <see c_ref="PaneBase.CalcScaleFactor"/> method, and is used to proportionally adjust /// font sizes, etc. according to the actual size of the graph. /// </param> public void Draw(Graphics g, GraphPane pane, OHLCBarItem curve, Axis baseAxis, Axis valueAxis, float scaleFactor) { //ValueHandler valueHandler = new ValueHandler( pane, false ); float pixBase, pixHigh, pixLow, pixOpen, pixClose; if (curve.Points != null) { //float halfSize = _size * scaleFactor; float halfSize = GetBarWidth(pane, baseAxis, scaleFactor); using (Pen pen = !curve.IsSelected ? new Pen(_color, _width) : new Pen(Selection.Border.Color, Selection.Border.Width)) // using ( Pen pen = new Pen( _color, _penWidth ) ) { // Loop over each defined point for (int i = 0; i < curve.Points.Count; i++) { PointPair pt = curve.Points[i]; double date = pt.X; double high = pt.Y; double low = pt.Z; double open = PointPair.Missing; double close = PointPair.Missing; if (pt is StockPt) { open = (pt as StockPt).Open; close = (pt as StockPt).Close; } // Any value set to double max is invalid and should be skipped // This is used for calculated values that are out of range, divide // by zero, etc. // Also, any value <= zero on a log scale is invalid if (!curve.Points[i].IsInvalid3D && (date > 0 || !baseAxis._scale.IsLog) && ((high > 0 && low > 0) || !valueAxis._scale.IsLog)) { pixBase = (int)(baseAxis.Scale.Transform(curve.IsOverrideOrdinal, i, date) + 0.5); //pixBase = baseAxis.Scale.Transform( curve.IsOverrideOrdinal, i, date ); pixHigh = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, high); pixLow = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, low); if (PointPair.IsValueInvalid(open)) { pixOpen = Single.MaxValue; } else { pixOpen = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, open); } if (PointPair.IsValueInvalid(close)) { pixClose = Single.MaxValue; } else { pixClose = valueAxis.Scale.Transform(curve.IsOverrideOrdinal, i, close); } if (!curve.IsSelected && _gradientFill.IsGradientValueType) { using (Pen tPen = GetPen(pane, scaleFactor, pt)) Draw(g, pane, baseAxis is XAxis || baseAxis is X2Axis, pixBase, pixHigh, pixLow, pixOpen, pixClose, halfSize, tPen); } else { Draw(g, pane, baseAxis is XAxis || baseAxis is X2Axis, pixBase, pixHigh, pixLow, pixOpen, pixClose, halfSize, pen); } } } } } }