public void AddAreas(Graphics g, ChartStyle cs, int nSeries, int nPoints)
{
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] = AreaAxis;
}
int n = 0;
foreach (DataSeries ds in DataSeriesList) {
Pen aPen = new Pen (ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
Color fillColor = Color.FromArgb (CMap [n, 0], CMap [n, 1],
CMap [n, 2], CMap [n, 3]);
SolidBrush aBrush = new SolidBrush (fillColor);
// Draw lines and areas:
if (ds.LineStyle.PlotMethod == LineStyle.PlotLinesMethodEnum.Lines) {
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]);
pts [2 * nPoints - 1 - i] = cs.Point2D (pt1 [i]);
}
g.FillPolygon (aBrush, pts);
g.DrawPolygon (Pens.Black, pts);
}
n++;
}
}
public ChartCanvas(CGRect rect)
: base(rect)
{
ContentMode = UIViewContentMode.Redraw;
AutoresizingMask = UIViewAutoresizing.All;
BackColor = Color.Wheat;
PlotPanel = new PlotPanel (rect);
AddSubview (PlotPanel);
// Subscribing to a paint eventhandler to drawingPanel:
PlotPanel.Paint += PlotPanelPaint;
dc = new DataCollection ();
cs = new ChartStyle (this);
cs.XLimMin = 0f;
cs.XLimMax = 10f;
cs.YLimMin = 0f;
cs.YLimMax = 10f;
cs.XTick = 2f;
cs.YTick = 2f;
cs.XLabel = "This is X axis";
cs.YLabel = "This is Y axis";
cs.Title = "Area Plot";
cs.IsXGrid = true;
cs.IsYGrid = true;
}
public void AddAreas(Graphics g, ChartStyle cs, int nSeries, int nPoints)
{
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] = AreaAxis;
}
int n = 0;
foreach (DataSeries ds in DataSeriesList)
{
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
Color fillColor = Color.FromArgb(CMap [n, 0], CMap [n, 1],
CMap [n, 2], CMap [n, 3]);
SolidBrush aBrush = new SolidBrush(fillColor);
// Draw lines and areas:
if (ds.LineStyle.PlotMethod == LineStyle.PlotLinesMethodEnum.Lines)
{
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]);
pts [2 * nPoints - 1 - i] = cs.Point2D(pt1 [i]);
}
g.FillPolygon(aBrush, pts);
g.DrawPolygon(Pens.Black, pts);
}
n++;
}
}