internal static void AddPolar(DataCollectionPolar dc, Graphics g, ChartStyle cs, RAxis ra)
{
if (!dc.CheckNegative())
{
return;
}
float xc = cs.polarArea.X + cs.polarArea.Width / 2;
float yc = cs.polarArea.Y + cs.polarArea.Height / 2;
Pen aPen = null;
SolidBrush aBrush = null;
// Plot lines:
//雷达图
if (dc.PolarChartType == PolarChartTypeEnum.Radar || dc.PolarChartType == PolarChartTypeEnum.RadarPolygon)
{
foreach (DataSeries ds in dc.DataSeriesList)
{
aBrush = new SolidBrush(ds.FillColor);
aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.LineThickness);
aPen.DashStyle = ds.LineStyle.LinePattern;
PointF[] pts = new PointF[ds.PointList.Count];
for (int i = 0; i < ds.PointList.Count; i++)
{
pts[i] = cs.Point2DR((PointF)ds.PointList[i], ra);
}
if (ds.LineStyle.IsVisible == true)
{
g.DrawPolygon(aPen, pts);
}
if (dc.PolarChartType == PolarChartTypeEnum.RadarPolygon)
{
g.FillPolygon(aBrush, pts);
}
}
}
//玫瑰图
else if (dc.PolarChartType == PolarChartTypeEnum.Rose)
{
Dictionary <float, float> rSum = new Dictionary <float, float>();
for (int a = 0; a < 360 / ra.AngleStep; a++)
{
rSum.Add(a * ra.AngleStep, 0);
}
foreach (DataSeries ds in dc.DataSeriesList)
{
foreach (PointF p in ds.PointList)
{
if (p.Y < 0)
{
return;
}
if (rSum.ContainsKey(p.X))
{
rSum[p.X] += p.Y;
}
else
{
return;
}
}
}
for (int i = dc.DataSeriesList.Count - 1; i >= 0; i--)
{
DataSeries ds = (DataSeries)dc.DataSeriesList[i];
aBrush = new SolidBrush(ds.FillColor);
aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.LineThickness);
aPen.DashStyle = ds.LineStyle.LinePattern;
//ds.LineStyle.IsVisible = false;
float sweepAngle = ra.AngleStep * dc.RoseBarWidth;
float pStartAngle = 0;
int pBarLeng = 0;
foreach (PointF p in ds.PointList)
{
pStartAngle = p.X + ra.StartAngle - sweepAngle / 2;
pBarLeng = (int)Math.Ceiling(cs.RNorm(rSum[p.X], ra));
Rectangle rect1 = new Rectangle((int)xc - pBarLeng, (int)yc - pBarLeng, pBarLeng * 2, pBarLeng * 2);
g.FillPie(aBrush, rect1, pStartAngle, sweepAngle);
if (ds.LineStyle.IsVisible)
{
g.DrawPie(aPen, rect1, pStartAngle, sweepAngle);
}
rSum[p.X] -= p.Y;
}
}
}
//曲线图
else if (dc.PolarChartType == PolarChartTypeEnum.Spline)
{
foreach (DataSeries ds in dc.DataSeriesList)
{
aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.LineThickness);
aPen.DashStyle = ds.LineStyle.LinePattern;
PointF[] pts = new PointF[ds.PointList.Count];
if (ds.LineStyle.IsVisible == true)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
pts[i] = cs.Point2DR((PointF)ds.PointList[i], ra);
}
g.DrawClosedCurve(aPen, pts);
}
}
}
// Plot Symbols:
if (dc.PolarChartType == PolarChartTypeEnum.Radar || dc.PolarChartType == PolarChartTypeEnum.Spline)
{
foreach (DataSeries ds in dc.DataSeriesList)
{
for (int i = 0; i < ds.PointList.Count; i++)
{
PointF pt = cs.Point2DR((PointF)ds.PointList[i], ra);
if (!pt.IsEmpty)
{
ds.SymbolStyle.DrawSymbol(g, pt);
}
}
}
}
if (aPen != null)
{
aPen.Dispose();
}
if (aBrush != null)
{
aBrush.Dispose();
}
}
