private void _chart_OnDrawLine(object sender, Charting.Controls.Chart.DrawEventArgs <Events.DoubleDrawingData> e)
{
using (CGContext g = UIGraphics.GetCurrentContext())
{
g.SetLineWidth(2.5F);
Colors[e.Data.SeriesNo].SetFill();
Colors[e.Data.SeriesNo].SetStroke();
g.MoveTo((float)e.Data.XFrom, (float)e.Data.YFrom);
g.AddLineToPoint((float)e.Data.XTo, (float)e.Data.YTo);
g.DrawPath(CGPathDrawingMode.FillStroke);
}
}
private void _chart_OnDrawBar(object sender, Charting.Controls.Chart.DrawEventArgs <Events.DoubleDrawingData> e)
{
using (CGContext g = UIGraphics.GetCurrentContext())
{
g.SetLineWidth(1);
Colors[e.Data.SeriesNo].SetFill();
Colors[e.Data.SeriesNo].SetStroke();
RectangleF rect = new RectangleF((float)e.Data.XFrom, (float)e.Data.YFrom, (float)(e.Data.XTo - e.Data.XFrom), (float)(e.Data.YTo - e.Data.YFrom));
g.AddRect(rect);
g.DrawPath(CGPathDrawingMode.FillStroke);
}
}
private void _chart_OnDrawCircle(object sender, Charting.Controls.Chart.DrawEventArgs <Events.SingleDrawingData> e)
{
using (CGContext g = UIGraphics.GetCurrentContext())
{
g.SetLineWidth(2);
Colors[e.Data.SeriesNo].SetFill();
Colors[e.Data.SeriesNo].SetStroke();
float startAngle = -((float)Math.PI / 2);
float endAngle = ((2 * (float)Math.PI) + startAngle);
g.AddArc((float)e.Data.X, (float)e.Data.Y, (float)e.Data.Size, startAngle, endAngle, true);
g.DrawPath(CGPathDrawingMode.FillStroke);
}
}
private void _chart_OnDrawPie(object sender, Charting.Controls.Chart.DrawEventArgs <Events.PieDrawingData> e)
{
double totalDegrees = 0;
for (int i = 0; i < e.Data.Percentages.Length; i++)
{
double degrees = e.Data.Percentages[i];
using (CGContext g = UIGraphics.GetCurrentContext())
{
g.SetLineWidth(2);
Colors[i].SetFill();
Colors[i].SetStroke();
g.AddArc((float)e.Data.X, (float)e.Data.Y, (float)e.Data.Size, (float)(Math.PI / 180 * totalDegrees), (float)(Math.PI / 180 * degrees), true);
g.DrawPath(CGPathDrawingMode.FillStroke);
}
totalDegrees += degrees;
}
}
private void _chart_OnDrawText(object sender, Charting.Controls.Chart.DrawEventArgs <Events.TextDrawingData> e)
{
NSString str = new NSString(e.Data.Text);
str.DrawString(new PointF((float)e.Data.X, (float)e.Data.Y), UIFont.SystemFontOfSize(12));
}
