public void DrawArc(Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle)
{
StartDrawing();
var rect = TranslateView(new CGRect(x, y, width, height), true);
pen.Apply(this);
var yscale = rect.Height / rect.Width;
var centerY = rect.GetMidY();
var centerX = rect.GetMidX();
Control.ConcatCTM(new CGAffineTransform(1.0f, 0, 0, yscale, 0, centerY - centerY * yscale));
Control.AddArc(centerX, centerY, rect.Width / 2, Conversions.DegreesToRadians(startAngle), Conversions.DegreesToRadians(startAngle + sweepAngle), sweepAngle < 0);
Control.StrokePath();
EndDrawing();
}
public void FillPie(Brush brush, float x, float y, float width, float height, float startAngle, float sweepAngle)
{
StartDrawing();
var rect = TranslateView(new System.Drawing.RectangleF(x, y, width, height), true, true);
brush.Apply(this);
var yscale = rect.Height / rect.Width;
var centerY = RectangleFExtensions.GetMidY(rect);
var centerX = RectangleFExtensions.GetMidX(rect);
Control.ConcatCTM(new CGAffineTransform(1.0f, 0, 0, yscale, 0, centerY - centerY * yscale));
Control.MoveTo(centerX, centerY);
Control.AddArc(centerX, centerY, rect.Width / 2, Conversions.DegreesToRadians(startAngle), Conversions.DegreesToRadians(startAngle + sweepAngle), sweepAngle < 0);
Control.AddLineToPoint(centerX, centerY);
Control.ClosePath();
Control.FillPath();
EndDrawing();
}
public void DrawArc(Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle)
{
SetOffset(true);
StartDrawing();
var rect = new CGRect(x, y, width, height);
pen.Apply(this);
var yscale = rect.Height / rect.Width;
var centerY = rect.GetMidY();
var centerX = rect.GetMidX();
Control.SaveState(); // save so the drawing of the pen isn't affected by the transform
Control.ConcatCTM(new CGAffineTransform(1.0f, 0, 0, yscale, 0, centerY - centerY * yscale));
Control.AddArc(centerX, centerY, rect.Width / 2, CGConversions.DegreesToRadians(startAngle), CGConversions.DegreesToRadians(startAngle + sweepAngle), sweepAngle < 0);
Control.RestoreState();
pen.Finish(this);
EndDrawing();
}
public void FillPie(Brush brush, float x, float y, float width, float height, float startAngle, float sweepAngle)
{
SetOffset(true);
StartDrawing();
var rect = new CGRect(x, y, width, height);
Control.SaveState(); // save so the drawing of the brush isn't affected by the transform
var yscale = rect.Height / rect.Width;
var centerY = rect.GetMidY();
var centerX = rect.GetMidX();
Control.ConcatCTM(new CGAffineTransform(1.0f, 0, 0, yscale, 0, centerY - centerY * yscale));
Control.MoveTo(centerX, centerY);
Control.AddArc(centerX, centerY, rect.Width / 2, CGConversions.DegreesToRadians(startAngle), CGConversions.DegreesToRadians(startAngle + sweepAngle), sweepAngle < 0);
Control.AddLineToPoint(centerX, centerY);
Control.ClosePath();
Control.RestoreState();
brush.Draw(this, false, FillMode.Winding);
EndDrawing();
}
public void AddArc(float x, float y, float width, float height, float startAngle, float sweepAngle)
{
Control.AddArc(x, y, width, height, startAngle, sweepAngle);
}
