/// <summary>
/// 绘制矩形图，根据BarChartType和ds数量确定Bar绘制方式。
/// 当BarChartType为Vertical或Horizontal，且ds数量大于1时，为多组柱图；其余情况为单柱图
/// </summary>
/// <param name="dc"></param>
/// <param name="g"></param>
/// <param name="cs"></param>
/// <param name="xa"></param>
/// <param name="ya"></param>
internal static void AddBars(DataCollectionBar dc, Graphics g, ChartStyle cs, XAxis xa, YAxis ya, Y2Axis y2a)
{
int numberOfDataSeries = dc.DataSeriesList.Count;
//比较各列个数，柱状图需统一个数，以最多个数为准
int nPoints = 0;
bool isConsistant = true;
bool isY2 = false;
foreach (DataSeries ds in dc.DataSeriesList)
{
if (nPoints < ds.PointList.Count)
{
nPoints = ds.PointList.Count;
}
if (ds.IsY2Data)
{
isY2 = true;
}
}
// Draw bars:
ArrayList temp = new ArrayList();
float[] tempy = new float[nPoints];
PointF temppt = new PointF();
int n = 0;
foreach (DataSeries ds in dc.DataSeriesList)
{
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.LineThickness);
aPen.DashStyle = ds.LineStyle.LinePattern;
SolidBrush aBrush;
if (ds.FillColor != Color.Empty)
{
aBrush = new SolidBrush(ds.FillColor);
}
else
{
aBrush = new SolidBrush(Color.FromArgb(180, ds.LineStyle.LineColor));
}
PointF[] pts = new PointF[4];
PointF pt;
float width;
if (dc.BarChartType == BarChartTypeEnum.Vertical)
{
if (numberOfDataSeries == 1)
{
width = (float)xa.XTick * dc.BarWidth;
if (!isY2)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
float x = pt.X - xa.XTick / 2;
pts[0] = cs.Point2D(new PointF(x - width / 2, 0), xa, ya);
pts[1] = cs.Point2D(new PointF(x + width / 2, 0), xa, ya);
pts[2] = cs.Point2D(new PointF(x + width / 2, pt.Y), xa, ya);
pts[3] = cs.Point2D(new PointF(x - width / 2, pt.Y), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
float x = pt.X - xa.XTick / 2;
pts[0] = cs.Point2DY2(new PointF(x - width / 2, 0), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(x + width / 2, 0), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(x + width / 2, pt.Y), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(x - width / 2, pt.Y), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
}
else if (numberOfDataSeries > 1)
{
//width = 0.7f * (float)xa.XTick;
dc.BarWidth = (dc.BarWidth > 0 && dc.BarWidth <= 1) ? dc.BarWidth : 0.95f;
width = (float)xa.XTick * dc.BarWidth;
if (!isY2)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
float x = pt.X;// - (float)xa.XTick / 2
float w1 = width / numberOfDataSeries;
float w = dc.BarWidth * w1;
float space = (w1 - w) / 2;
pts[0] = cs.Point2D(new PointF(x - width / 2 + space + n * w1, 0), xa, ya);
pts[1] = cs.Point2D(new PointF(x - width / 2 + space + n * w1 + w, 0), xa, ya);
pts[2] = cs.Point2D(new PointF(x - width / 2 + space + n * w1 + w, pt.Y), xa, ya);
pts[3] = cs.Point2D(new PointF(x - width / 2 + space + n * w1, pt.Y), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
float x = pt.X - (float)xa.XTick / 2;
float w1 = width / numberOfDataSeries;
float w = dc.BarWidth * w1;
float space = (w1 - w) / 2;
pts[0] = cs.Point2DY2(new PointF(x - width / 2 + space + n * w1, 0), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(x - width / 2 + space + n * w1 + w, 0), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(x - width / 2 + space + n * w1 + w, pt.Y), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(x - width / 2 + space + n * w1, pt.Y), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
}
}
else if (dc.BarChartType == BarChartTypeEnum.VerticalOverlay && numberOfDataSeries > 1)
{
width = (float)xa.XTick * dc.BarWidth;
width = width / (float)Math.Pow(2, n);
if (!isY2)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
float x = pt.X - xa.XTick / 2;
pts[0] = cs.Point2D(new PointF(x - width / 2, 0), xa, ya);
pts[1] = cs.Point2D(new PointF(x + width / 2, 0), xa, ya);
pts[2] = cs.Point2D(new PointF(x + width / 2, pt.Y), xa, ya);
pts[3] = cs.Point2D(new PointF(x - width / 2, pt.Y), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
float x = pt.X - xa.XTick / 2;
pts[0] = cs.Point2DY2(new PointF(x - width / 2, 0), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(x + width / 2, 0), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(x + width / 2, pt.Y), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(x - width / 2, pt.Y), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
}
else if (dc.BarChartType == BarChartTypeEnum.VerticalStack && numberOfDataSeries > 1)
{
width = xa.XTick * dc.BarWidth;
if (!isY2)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
if (temp.Count > 0)
{
tempy[i] = tempy[i] + ((PointF)temp[i]).Y;
}
float x = pt.X - xa.XTick / 2;
pts[0] = cs.Point2D(new PointF(x - width / 2, 0 + tempy[i]), xa, ya);
pts[1] = cs.Point2D(new PointF(x + width / 2, 0 + tempy[i]), xa, ya);
pts[2] = cs.Point2D(new PointF(x + width / 2, pt.Y + tempy[i]), xa, ya);
pts[3] = cs.Point2D(new PointF(x - width / 2, pt.Y + tempy[i]), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
if (temp.Count > 0)
{
tempy[i] = tempy[i] + ((PointF)temp[i]).Y;
}
float x = pt.X - xa.XTick / 2;
pts[0] = cs.Point2DY2(new PointF(x - width / 2, 0 + tempy[i]), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(x + width / 2, 0 + tempy[i]), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(x + width / 2, pt.Y + tempy[i]), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(x - width / 2, pt.Y + tempy[i]), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
temp = ds.PointList;
}
else if (dc.BarChartType == BarChartTypeEnum.Horizontal)
{
if (numberOfDataSeries == 1)
{
if (!isY2)
{
width = ya.YTick * dc.BarWidth;
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
float y = pt.Y - ya.YTick / 2;
pts[0] = cs.Point2D(new PointF(0, y - width / 2), xa, ya);
pts[1] = cs.Point2D(new PointF(0, y + width / 2), xa, ya);
pts[2] = cs.Point2D(new PointF(pt.X, y + width / 2), xa, ya);
pts[3] = cs.Point2D(new PointF(pt.X, y - width / 2), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
width = y2a.Y2Tick * dc.BarWidth;
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
float y = pt.Y - y2a.Y2Tick / 2;
pts[0] = cs.Point2DY2(new PointF(0, y - width / 2), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(0, y + width / 2), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(pt.X, y + width / 2), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(pt.X, y - width / 2), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
}
else if (numberOfDataSeries > 1)
{
//width = 0.7f * ya.YTick;
dc.BarWidth = (dc.BarWidth > 0 && dc.BarWidth <= 1) ? dc.BarWidth : 0.95f;
if (!isY2)
{
width = (float)ya.YTick * dc.BarWidth;
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
float w1 = width / numberOfDataSeries;
float w = dc.BarWidth * w1;
float space = (w1 - w) / 2;
float y = pt.Y - ya.YTick / 2;
pts[0] = cs.Point2D(new PointF(0,
y - width / 2 + space + n * w1), xa, ya);
pts[1] = cs.Point2D(new PointF(0,
y - width / 2 + space + n * w1 + w), xa, ya);
pts[2] = cs.Point2D(new PointF(pt.X,
y - width / 2 + space + n * w1 + w), xa, ya);
pts[3] = cs.Point2D(new PointF(pt.X,
y - width / 2 + space + n * w1), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
width = (float)y2a.Y2Tick * dc.BarWidth;
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
float w1 = width / numberOfDataSeries;
float w = dc.BarWidth * w1;
float space = (w1 - w) / 2;
float y = pt.Y - y2a.Y2Tick / 2;
pts[0] = cs.Point2DY2(new PointF(0,
y - width / 2 + space + n * w1), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(0,
y - width / 2 + space + n * w1 + w), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(pt.X,
y - width / 2 + space + n * w1 + w), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(pt.X,
y - width / 2 + space + n * w1), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
}
}
else if (dc.BarChartType == BarChartTypeEnum.HorizontalOverlay && numberOfDataSeries > 1)
{
if (!isY2)
{
width = ya.YTick * dc.BarWidth;
width = width / (float)Math.Pow(2, n);
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
float y = pt.Y - ya.YTick / 2;
pts[0] = cs.Point2D(new PointF(0, y - width / 2), xa, ya);
pts[1] = cs.Point2D(new PointF(0, y + width / 2), xa, ya);
pts[2] = cs.Point2D(new PointF(pt.X, y + width / 2), xa, ya);
pts[3] = cs.Point2D(new PointF(pt.X, y - width / 2), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
width = y2a.Y2Tick * dc.BarWidth;
width = width / (float)Math.Pow(2, n);
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
float y = pt.Y - y2a.Y2Tick / 2;
pts[0] = cs.Point2DY2(new PointF(0, y - width / 2), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(0, y + width / 2), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(pt.X, y + width / 2), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(pt.X, y - width / 2), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
}
else if (dc.BarChartType == BarChartTypeEnum.HorizontalStack && numberOfDataSeries > 1)
{
if (!isY2)
{
width = ya.YTick * dc.BarWidth;
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
if (temp.Count > 0)
{
temppt = (PointF)temp[i];
tempy[i] = tempy[i] + temppt.Y;
}
float y = pt.Y - ya.YTick / 2;
pts[0] = cs.Point2D(new PointF(0 + tempy[i], y - width / 2), xa, ya);
pts[1] = cs.Point2D(new PointF(0 + tempy[i], y + width / 2), xa, ya);
pts[2] = cs.Point2D(new PointF(pt.X + tempy[i], y + width / 2), xa, ya);
pts[3] = cs.Point2D(new PointF(pt.X + tempy[i], y - width / 2), xa, ya);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
else
{
width = y2a.Y2Tick * dc.BarWidth;
for (int i = 0; i < ds.PointList.Count; i++)
{
temppt = (PointF)ds.PointList[i];
pt = new PointF(temppt.Y, temppt.X);
if (temp.Count > 0)
{
temppt = (PointF)temp[i];
tempy[i] = tempy[i] + temppt.Y;
}
float y = pt.Y - y2a.Y2Tick / 2;
pts[0] = cs.Point2DY2(new PointF(0 + tempy[i], y - width / 2), xa, y2a);
pts[1] = cs.Point2DY2(new PointF(0 + tempy[i], y + width / 2), xa, y2a);
pts[2] = cs.Point2DY2(new PointF(pt.X + tempy[i], y + width / 2), xa, y2a);
pts[3] = cs.Point2DY2(new PointF(pt.X + tempy[i], y - width / 2), xa, y2a);
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
}
}
temp = ds.PointList;
}
n++;
aPen.Dispose();
aBrush.Dispose();
}
}
internal static void AddAreas(DataCollectionArea dc, Graphics g, ChartStyle cs, XAxis xa, YAxis ya, Y2Axis y2a)
{
if (dc.ChartType != Chart2DTypeEnum.AreaChart || dc.DataSeriesList.Count == 0)
{
return;
}
//比较各列点数，面积图需统一点数(暂不处理，待优化：以最少点数为准)
int nPoints = 0;
bool isConsistant = true;
bool isY2 = false;
foreach (DataSeries ds in dc.DataSeriesList)
{
if (nPoints == 0)
{
nPoints = ds.PointList.Count;
}
else if (nPoints != ds.PointList.Count)
{
isConsistant = false;
}
if (ds.IsY2Data)
{
isY2 = true;
}
}
if (!isConsistant)
{
return;
}
float[] ySum = new float[nPoints];
PointF[] pts = new PointF[2 * nPoints];
PointF[] pt0 = new PointF[nPoints];
PointF[] pt1 = new PointF[nPoints];
for (int i = 0; i < nPoints; i++)
{
ySum[i] = dc.AreaAxis;
}
int n = 0;
Pen aPen = new Pen(Color.Black);
SolidBrush aBrush = new SolidBrush(Color.Black);
foreach (DataSeries ds in dc.DataSeriesList)
{
//Color fillColor = Color.FromArgb(dc.CMap[n, 0], dc.CMap[n, 1], dc.CMap[n, 2], dc.CMap[n, 3]);
if (ds.FillColor != Color.Empty)
{
aBrush = new SolidBrush(ds.FillColor);
}
else
{
aBrush = new SolidBrush(Color.FromArgb(180, ds.LineStyle.LineColor));
}
aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.LineThickness);
aPen.DashStyle = ds.LineStyle.LinePattern;
// Draw lines and areas:
if (dc.AreaChartType == AreaChartTypeEnum.Area)
{
if (!isY2)
{
for (int i = 0; i < nPoints; i++)
{
pt0[i] = new PointF(((PointF)ds.PointList[i]).X, ySum[i]);
ySum[i] = ySum[i] + ((PointF)ds.PointList[i]).Y;
pt1[i] = new PointF(((PointF)ds.PointList[i]).X, ySum[i]);
pts[i] = cs.Point2D(pt0[i], xa, ya);
pts[2 * nPoints - 1 - i] = cs.Point2D(pt1[i], xa, ya);
}
}
else
{
for (int i = 0; i < nPoints; i++)
{
pt0[i] = new PointF(((PointF)ds.PointList[i]).X, ySum[i]);
ySum[i] = ySum[i] + ((PointF)ds.PointList[i]).Y;
pt1[i] = new PointF(((PointF)ds.PointList[i]).X, ySum[i]);
pts[i] = cs.Point2DY2(pt0[i], xa, y2a);
pts[2 * nPoints - 1 - i] = cs.Point2DY2(pt1[i], xa, y2a);
}
}
g.FillPolygon(aBrush, pts);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pts);
}
n++;
}
}
aPen.Dispose();
aBrush.Dispose();
}
//绘制线性图
internal static void AddLines(DataCollection dc, Graphics g, ChartStyle cs, XAxis xa, YAxis ya, Y2Axis y2a)
{
if (dc.ChartType != Chart2DTypeEnum.LineChart || dc.DataSeriesList.Count == 0)
{
return;
}
//SeriesColor.SetSeriesColor(dc);
// Plot lines:
foreach (DataSeries ds in dc.DataSeriesList)
{
if (ds.LineStyle.IsVisible == true)
{
PointF pt = new PointF();
PointF pt0 = new PointF();
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.LineThickness);
aPen.DashStyle = ds.LineStyle.LinePattern;
#region line
// Plot Line:
if (ds.LineChartType == LineChartTypeEnum.Line)
{
for (int i = 1; i < ds.PointList.Count; i++)
{
if (!ds.IsY2Data)
{
g.DrawLine(aPen, cs.Point2D((PointF)ds.PointList[i - 1], xa, ya),
cs.Point2D((PointF)ds.PointList[i], xa, ya));
}
else
{
g.DrawLine(aPen, cs.Point2DY2((PointF)ds.PointList[i - 1], xa, y2a),
cs.Point2DY2((PointF)ds.PointList[i], xa, y2a));
}
}
}
// Plot Spline:
else if (ds.LineChartType == LineChartTypeEnum.Spline)
{
PointF[] pts = new PointF[ds.PointList.Count];
for (int i = 0; i < pts.Length; i++)
{
if (!ds.IsY2Data)
{
pts[i] = cs.Point2D((PointF)(ds.PointList[i]), xa, ya);
}
else
{
pts[i] = cs.Point2DY2((PointF)(ds.PointList[i]), xa, y2a);
}
}
g.DrawCurve(aPen, pts);
}
#endregion
#region Stairstep
// Plot Stairstep:
else if (ds.LineChartType == LineChartTypeEnum.StairStep)
{
ArrayList aList = new ArrayList();
if (!ds.IsY2Data)
{
// Create Stairstep data:
for (int i = 0; i < ds.PointList.Count - 1; i++)
{
pt = (PointF)ds.PointList[i];
pt0 = (PointF)ds.PointList[i + 1];
aList.Add(pt);
aList.Add(new PointF(pt0.X, pt.Y));
}
aList.Add(ds.PointList[ds.PointList.Count - 1]);
// Draw stairstep chart:
for (int i = 1; i < aList.Count; i++)
{
g.DrawLine(aPen, cs.Point2D((PointF)aList[i - 1], xa, ya),
cs.Point2D((PointF)aList[i], xa, ya));
}
}
else
{
for (int i = 0; i < ds.PointList.Count - 1; i++)
{
pt = (PointF)ds.PointList[i];
pt0 = (PointF)ds.PointList[i + 1];
aList.Add(pt);
aList.Add(new PointF(pt0.X, pt.Y));
}
aList.Add(ds.PointList[ds.PointList.Count - 1]);
for (int i = 1; i < aList.Count; i++)
{
g.DrawLine(aPen, cs.Point2DY2((PointF)aList[i - 1], xa, y2a),
cs.Point2DY2((PointF)aList[i], xa, y2a));
}
}
}
#endregion
#region Stem
// Plot Stems:
else if (ds.LineChartType == LineChartTypeEnum.Stem)
{
if (!ds.IsY2Data)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
pt0 = new PointF(pt.X, 0);
g.DrawLine(aPen, cs.Point2D(pt0, xa, ya), cs.Point2D(pt, xa, ya));
}
}
else
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pt = (PointF)ds.PointList[i];
pt0 = new PointF(pt.X, 0);
g.DrawLine(aPen, cs.Point2DY2(pt0, xa, y2a), cs.Point2DY2(pt, xa, y2a));
}
}
}
#endregion
#region ErrorBar
//Plot ErrorBar
else if (ds.LineChartType == LineChartTypeEnum.ErrorBar)
{
Pen errorPen = new Pen(ds.ErrorLineStyle.LineColor, ds.ErrorLineStyle.LineThickness);
errorPen.DashStyle = ds.ErrorLineStyle.LinePattern;
float barLength = 0;
if (!ds.IsY2Data)
{
// Draw lines:
for (int i = 1; i < ds.PointList.Count; i++)
{
pt0 = (PointF)ds.PointList[i - 1];
pt = (PointF)ds.PointList[i];
g.DrawLine(aPen, cs.Point2D(pt0, xa, ya), cs.Point2D(pt, xa, ya));
barLength = (pt.X - pt0.X) / 4;
}
// Draw error lines:
for (int i = 0; i < ds.ErrorList.Count; i++)
{
PointF errorPoint = (PointF)ds.ErrorList[i];
PointF linePoint = (PointF)ds.PointList[i];
pt0 = new PointF(linePoint.X, linePoint.Y - errorPoint.Y / 2);
pt = new PointF(linePoint.X, linePoint.Y + errorPoint.Y / 2);
g.DrawLine(errorPen, cs.Point2D(pt0, xa, ya), cs.Point2D(pt, xa, ya));
PointF pt1 = new PointF(pt0.X - barLength / 2, pt0.Y);
PointF pt2 = new PointF(pt0.X + barLength / 2, pt0.Y);
g.DrawLine(errorPen, cs.Point2D(pt1, xa, ya), cs.Point2D(pt2, xa, ya));
pt1 = new PointF(pt.X - barLength / 2, pt.Y);
pt2 = new PointF(pt.X + barLength / 2, pt.Y);
g.DrawLine(errorPen, cs.Point2D(pt1, xa, ya), cs.Point2D(pt2, xa, ya));
}
}
else
{
for (int i = 1; i < ds.PointList.Count; i++)
{
pt0 = (PointF)ds.PointList[i - 1];
pt = (PointF)ds.PointList[i];
g.DrawLine(aPen, cs.Point2DY2(pt0, xa, y2a), cs.Point2DY2(pt, xa, y2a));
barLength = (pt.X - pt0.X) / 4;
}
for (int i = 0; i < ds.ErrorList.Count; i++)
{
PointF errorPoint = (PointF)ds.ErrorList[i];
PointF linePoint = (PointF)ds.PointList[i];
pt0 = new PointF(linePoint.X, linePoint.Y - errorPoint.Y / 2);
pt = new PointF(linePoint.X, linePoint.Y + errorPoint.Y / 2);
g.DrawLine(errorPen, cs.Point2DY2(pt0, xa, y2a), cs.Point2DY2(pt, xa, y2a));
PointF pt1 = new PointF(pt0.X - barLength / 2, pt0.Y);
PointF pt2 = new PointF(pt0.X + barLength / 2, pt0.Y);
g.DrawLine(errorPen, cs.Point2DY2(pt1, xa, y2a), cs.Point2DY2(pt2, xa, y2a));
pt1 = new PointF(pt.X - barLength / 2, pt.Y);
pt2 = new PointF(pt.X + barLength / 2, pt.Y);
g.DrawLine(errorPen, cs.Point2DY2(pt1, xa, y2a), cs.Point2DY2(pt2, xa, y2a));
}
}
errorPen.Dispose();
}
#endregion
#region Stock
else if ((ds.LineChartType == LineChartTypeEnum.HiLo || ds.LineChartType == LineChartTypeEnum.HiLoOpenClose || ds.LineChartType == LineChartTypeEnum.Candle) && ds.DataString != null)
{
SolidBrush aBrush = new SolidBrush(ds.LineStyle.LineColor);
SolidBrush whiteBrush = new SolidBrush(Color.White);
float barLength = cs.PlotArea.Width / (5 * ds.DataString.GetLength(1));
for (int i = 0; i < ds.DataString.GetLength(1); i++)
{
float[] stockdata = new float[4];
for (int j = 0; j < stockdata.Length; j++)
{
stockdata[j] = Convert.ToSingle(ds.DataString[j + 1, i]);
}
PointF ptHigh, ptLow, ptOpen, ptCLose;
if (!ds.IsY2Data)
{
ptHigh = cs.Point2D(new PointF(i, stockdata[1]), xa, ya);
ptLow = cs.Point2D(new PointF(i, stockdata[2]), xa, ya);
ptOpen = cs.Point2D(new PointF(i, stockdata[0]), xa, ya);
ptCLose = cs.Point2D(new PointF(i, stockdata[3]), xa, ya);
}
else
{
ptHigh = cs.Point2DY2(new PointF(i, stockdata[1]), xa, y2a);
ptLow = cs.Point2DY2(new PointF(i, stockdata[2]), xa, y2a);
ptOpen = cs.Point2DY2(new PointF(i, stockdata[0]), xa, y2a);
ptCLose = cs.Point2DY2(new PointF(i, stockdata[3]), xa, y2a);
}
PointF ptOpen1 = new PointF(ptOpen.X - barLength, ptOpen.Y);
PointF ptClose1 = new PointF(ptCLose.X + barLength, ptCLose.Y);
PointF ptOpen2 = new PointF(ptOpen.X + barLength, ptOpen.Y);
PointF ptClose2 = new PointF(ptCLose.X - barLength, ptCLose.Y);
// Draw Hi-Lo stock chart:
if (ds.LineChartType == LineChartTypeEnum.HiLo)
{
g.DrawLine(aPen, ptHigh, ptLow);
}
// Draw Hi-Li-Open-Close chart:
else if (ds.LineChartType == LineChartTypeEnum.HiLoOpenClose)
{
g.DrawLine(aPen, ptHigh, ptLow);
g.DrawLine(aPen, ptOpen, ptOpen1);
g.DrawLine(aPen, ptCLose, ptClose1);
}
// Draw candle chart:
else if (ds.LineChartType == LineChartTypeEnum.Candle)
{
PointF[] pts = new PointF[4];
pts[0] = ptOpen1;
pts[1] = ptOpen2;
pts[2] = ptClose1;
pts[3] = ptClose2;
g.DrawLine(aPen, ptHigh, ptLow);
if (stockdata[0] > stockdata[3])
{
g.FillPolygon(aBrush, pts);
}
else if (stockdata[0] < stockdata[3])
{
g.FillPolygon(whiteBrush, pts);
}
g.DrawPolygon(aPen, pts);
}
}
aBrush.Dispose();
whiteBrush.Dispose();
}
#endregion
aPen.Dispose();
}
}
// Plot Symbols:
foreach (DataSeries ds in dc.DataSeriesList)
{
if (ds.LineChartType != LineChartTypeEnum.HiLo && ds.LineChartType != LineChartTypeEnum.HiLoOpenClose && ds.LineChartType != LineChartTypeEnum.Candle)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
PointF pt = (PointF)ds.PointList[i];
if (!ds.IsY2Data)
{
if (pt.X >= xa.XLimMin && pt.X <= xa.XLimMax &&
pt.Y >= ya.YLimMin && pt.Y <= ya.YLimMax)
{
ds.SymbolStyle.DrawSymbol(g, cs.Point2D((PointF)ds.PointList[i], xa, ya));
}
}
else
{
if (pt.X >= xa.XLimMin && pt.X <= xa.XLimMax &&
pt.Y >= y2a.Y2LimMin && pt.Y <= y2a.Y2LimMax)
{
ds.SymbolStyle.DrawSymbol(g, cs.Point2DY2((PointF)ds.PointList[i], xa, y2a));
}
}
}
}
}
}