Esempio n. 1
0
        public void DrawArc(Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle)
        {
            SetOffset(false);
            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.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.StrokePath();
            EndDrawing();
        }
Esempio n. 2
0
        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();
            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();
            Control.Clip();
            brush.Draw(this, rect.ToEto());
            EndDrawing();
        }
Esempio n. 3
0
		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();
			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();
			Control.Clip();
			brush.Draw(this, rect.ToEto());
			EndDrawing();
		}
Esempio n. 4
0
		public void DrawArc(Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle)
		{
			SetOffset(false);
			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.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.StrokePath();
			EndDrawing();
		}