DrawBezier() public method

Draws a Bézier spline defined by four points.
public DrawBezier ( PdfSharp.Drawing.XPen pen, PointF pt1, PointF pt2, PointF pt3, PointF pt4 ) : void
pen PdfSharp.Drawing.XPen
pt1 System.Drawing.PointF
pt2 System.Drawing.PointF
pt3 System.Drawing.PointF
pt4 System.Drawing.PointF
return void
XGraphics Class Documentation
Example #1
0
    /// <summary>
    /// Demonstrates the use of XGraphics.DrawBezier.
    /// </summary>
    public override void RenderPage(XGraphics gfx)
    {
      base.RenderPage(gfx);

      gfx.DrawEllipse(XBrushes.Red, MakeRect(50, 100));
      gfx.DrawEllipse(XBrushes.Red, MakeRect(450, 100));
      gfx.DrawEllipse(XBrushes.Red, MakeRect(550, 190));
      gfx.DrawEllipse(XBrushes.Red, MakeRect(150, 300));

      gfx.DrawLine(XPens.Red, 50, 100, 450, 100);
      gfx.DrawLine(XPens.Red, 550, 190, 150, 300);

      gfx.DrawBezier(properties.Pen2.Pen, 50, 100, 450, 100, 550, 190, 150, 300);

      //XPoint[] points = new XPoint[1 + 3 * 3];
      //Random rnd = new Random();
      //for (int idx = 0; idx < points.Length; idx++)
      //{
      //  points[idx].X = 100 + rnd.Next(400);
      //  points[idx].Y = 200 + rnd.Next(700);
      //}
      //gfx.DrawBeziers(properties.Pen1.Pen, points);
    }
Example #2
0
    /// <summary>
    /// Draws a single Bézier curve.
    /// </summary>
    void DrawBezier(XGraphics gfx, int number)
    {
      BeginBox(gfx, number, "DrawBezier");

      gfx.DrawBezier(new XPen(XColors.DarkRed, 5), 20, 110, 40, 10, 170, 90, 230, 20);

      EndBox(gfx);
    }
Example #3
0
        private void DrawQuadraticBezier(XGraphics gfx, IQuadraticBezier quadraticBezier)
        {
            double x1 = quadraticBezier.Start.X;
            double y1 = quadraticBezier.Start.Y;
            double x2 = quadraticBezier.Start.X + (2.0 * (quadraticBezier.Point1.X - quadraticBezier.Start.X)) / 3.0;
            double y2 = quadraticBezier.Start.Y + (2.0 * (quadraticBezier.Point1.Y - quadraticBezier.Start.Y)) / 3.0;
            double x3 = x2 + (quadraticBezier.Point2.X - quadraticBezier.Start.X) / 3.0;
            double y3 = y2 + (quadraticBezier.Point2.Y - quadraticBezier.Start.Y) / 3.0;
            double x4 = quadraticBezier.Point2.X;
            double y4 = quadraticBezier.Point2.Y;

            var pen = new XPen(
                ToXColor(quadraticBezier.Stroke),
                X(quadraticBezier.StrokeThickness));

            gfx.DrawBezier(pen,
                X(x1), Y(y1),
                X(x2), Y(y2),
                X(x3), Y(y3),
                X(x4), Y(y4));
        }
Example #4
0
        private void DrawBezier(XGraphics gfx, IBezier bezier)
        {
            var pen = new XPen(
                ToXColor(bezier.Stroke),
                X(bezier.StrokeThickness));

            gfx.DrawBezier(pen,
                X(bezier.Start.X), Y(bezier.Start.Y),
                X(bezier.Point1.X), Y(bezier.Point1.Y),
                X(bezier.Point2.X), Y(bezier.Point2.Y),
                X(bezier.Point3.X), Y(bezier.Point3.Y));
        }