DrawBezier

Graphics.DrawBezier method (1 of 3)

Draws a Bézier spline defined by four ordered pairs of coordinates that represent points.

public void DrawBezier(Pen pen, float x1, float y1, float x2, float y2, float x3, float y3, 
    float x4, float y4)
Parameter Type Description
pen Pen Pen that determines the color, width, and style of the curve.
x1 Single The x-coordinate of the starting point of the curve.
y1 Single The y-coordinate of the starting point of the curve.
x2 Single The x-coordinate of the first control point of the curve.
y2 Single The y-coordinate of the first control point of the curve.
x3 Single The x-coordinate of the second control point of the curve.
y3 Single The y-coordinate of the second control point of the curve.
x4 Single The x-coordinate of the ending point of the curve.
y4 Single The y-coordinate of the ending point of the curve.

Exceptions

exception condition
ArgumentNullException pen is null.

See Also


Graphics.DrawBezier method (2 of 3)

Draws a Bézier spline defined by four PointF structures.

public void DrawBezier(Pen pen, PointF pt1, PointF pt2, PointF pt3, PointF pt4)
Parameter Type Description
pen Pen Pen that determines the color, width, and style of the curve.
pt1 PointF PointF structure that represents the starting point of the curve.
pt2 PointF PointF structure that represents the first control point for the curve.
pt3 PointF PointF structure that represents the second control point for the curve.
pt4 PointF PointF structure that represents the ending point of the curve.

Exceptions

exception condition
ArgumentNullException pen is null.

See Also


Graphics.DrawBezier method (3 of 3)

Draws a Bézier spline defined by four Point structures.

public void DrawBezier(Pen pen, Point pt1, Point pt2, Point pt3, Point pt4)
Parameter Type Description
pen Pen Pen structure that determines the color, width, and style of the curve.
pt1 Point Point structure that represents the starting point of the curve.
pt2 Point Point structure that represents the first control point for the curve.
pt3 Point Point structure that represents the second control point for the curve.
pt4 Point Point structure that represents the ending point of the curve.

Exceptions

exception condition
ArgumentNullException pen is null.

Examples

This example uses Graphics class to create primitive shapes on the Image surface. To demonstrate the operation, the example creates a new Image in PNG format and draw primitive shapes on Image surface using Draw methods exposed by Graphics class

[C#]

//Creates an instance of FileStream
using (System.IO.FileStream stream = new System.IO.FileStream(@"C:\temp\output.png", System.IO.FileMode.Create))
{
    //Create an instance of PngOptions and set its various properties
    Aspose.Imaging.ImageOptions.PngOptions pngOptions = new Aspose.Imaging.ImageOptions.PngOptions();

    //Set the Source for PngOptions
    pngOptions.Source = new Aspose.Imaging.Sources.StreamSource(stream);

    //Create an instance of Image 
    using (Aspose.Imaging.Image image = Aspose.Imaging.Image.Create(pngOptions, 500, 500))
    {
        //Create and initialize an instance of Graphics class
        Aspose.Imaging.Graphics graphics = new Aspose.Imaging.Graphics(image);

        //Clear Graphics surface
        graphics.Clear(Aspose.Imaging.Color.Wheat);

        //Draw an Arc by specifying the Pen object having Black color, 
        //a Rectangle surrounding the Arc, Start Angle and Sweep Angle
        graphics.DrawArc(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Black, 2), new Aspose.Imaging.Rectangle(200, 200, 100, 200), 0, 300);

        //Draw a Bezier by specifying the Pen object having Blue color and co-ordinate Points.
        graphics.DrawBezier(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Blue, 2), new Aspose.Imaging.Point(250, 100), new Aspose.Imaging.Point(300, 30), new Aspose.Imaging.Point(450, 100), new Aspose.Imaging.Point(235, 25));

        //Draw a Curve by specifying the Pen object having Green color and an array of Points
        graphics.DrawCurve(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Green, 2), new[] { new Aspose.Imaging.Point(100, 200), new Aspose.Imaging.Point(100, 350), new Aspose.Imaging.Point(200, 450) });

        //Draw an Ellipse using the Pen object and a surrounding Rectangle
        graphics.DrawEllipse(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Yellow, 2), new Aspose.Imaging.Rectangle(300, 300, 100, 100));

        //Draw a Line 
        graphics.DrawLine(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Violet, 2), new Aspose.Imaging.Point(100, 100), new Aspose.Imaging.Point(200, 200));

        //Draw a Pie segment
        graphics.DrawPie(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Silver, 2), new Aspose.Imaging.Rectangle(new Aspose.Imaging.Point(200, 20), new Aspose.Imaging.Size(200, 200)), 0, 45);

        //Draw a Polygon by specifying the Pen object having Red color and an array of Points
        graphics.DrawPolygon(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Red, 2), new[] { new Aspose.Imaging.Point(20, 100), new Aspose.Imaging.Point(20, 200), new Aspose.Imaging.Point(220, 20) });

        //Draw a Rectangle
        graphics.DrawRectangle(new Aspose.Imaging.Pen(Aspose.Imaging.Color.Orange, 2), new Aspose.Imaging.Rectangle(new Aspose.Imaging.Point(250, 250), new Aspose.Imaging.Size(100, 100)));

        //Create a SolidBrush object and set its various properties
        Aspose.Imaging.Brushes.SolidBrush brush = new Aspose.Imaging.Brushes.SolidBrush();
        brush.Color = Color.Purple;
        brush.Opacity = 100;

        //Draw a String using the SolidBrush object and Font, at specific Point
        graphics.DrawString("This image is created by Aspose.Imaging API", new Aspose.Imaging.Font("Times New Roman", 16), brush, new Aspose.Imaging.PointF(50, 400));

        // save all changes.
        image.Save();
    }
}

See Also