How to: Draw a Sequence of Bézier Splines
You can use the DrawBeziers method of the Graphics class to draw a sequence of connected Bézier splines.
Example
The following example draws a curve that consists of two connected Bézier splines. The endpoint of the first Bézier spline is the start point of the second Bézier spline.
The following illustration shows the connected splines along with the seven points.
.png "Bezier Spline")
' Point(10, 100) = start point of first spline
' Point(75, 10) = first control point of first spline
' Point(80, 50) = second control point of first spline
' Point(100, 150) = endpoint of first spline and start point of second spline
' Point(125, 80) = first control point of second spline
' Point(175, 200) = second control point of second spline
' Point(200, 80)} = endpoint of second spline
Dim p As Point() = { _
New Point(10, 100), _
New Point(75, 10), _
New Point(80, 50), _
New Point(100, 150), _
New Point(125, 80), _
New Point(175, 200), _
New Point(200, 80)}
Dim pen As New Pen(Color.Blue)
e.Graphics.DrawBeziers(pen, p)
Point[] p = {
new Point(10, 100), // start point of first spline
new Point(75, 10), // first control point of first spline
new Point(80, 50), // second control point of first spline
new Point(100, 150), // endpoint of first spline and
// start point of second spline
new Point(125, 80), // first control point of second spline
new Point(175, 200), // second control point of second spline
new Point(200, 80)}; // endpoint of second spline
Pen pen = new Pen(Color.Blue);
e.Graphics.DrawBeziers(pen, p);
Compiling the Code
The preceding example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler.