DrawArc

Graphics.DrawArc method (1 of 4)

Draws an arc representing a portion of an ellipse specified by a pair of coordinates, a width, and a height.

public void DrawArc(Pen pen, float x, float y, float width, float height, float startAngle, 
    float sweepAngle)
ParameterTypeDescription
penPenPen that determines the color, width, and style of the arc.
xSingleThe x-coordinate of the upper-left corner of the rectangle that defines the ellipse.
ySingleThe y-coordinate of the upper-left corner of the rectangle that defines the ellipse.
widthSingleWidth of the rectangle that defines the ellipse.
heightSingleHeight of the rectangle that defines the ellipse.
startAngleSingleAngle in degrees measured clockwise from the x-axis to the starting point of the arc.
sweepAngleSingleAngle in degrees measured clockwise from the startAngle parameter to ending point of the arc.

Exceptions

exceptioncondition
ArgumentNullExceptionpen is null.

See Also


Graphics.DrawArc method (2 of 4)

Draws an arc representing a portion of an ellipse specified by a RectangleF structure.

public void DrawArc(Pen pen, RectangleF rect, float startAngle, float sweepAngle)
ParameterTypeDescription
penPenPen that determines the color, width, and style of the arc.
rectRectangleFRectangleF structure that defines the boundaries of the ellipse.
startAngleSingleAngle in degrees measured clockwise from the x-axis to the starting point of the arc.
sweepAngleSingleAngle in degrees measured clockwise from the startAngle parameter to ending point of the arc.

Exceptions

exceptioncondition
ArgumentNullExceptionpen is null

See Also


Graphics.DrawArc method (3 of 4)

Draws an arc representing a portion of an ellipse specified by a pair of coordinates, a width, and a height.

public void DrawArc(Pen pen, int x, int y, int width, int height, int startAngle, int sweepAngle)
ParameterTypeDescription
penPenPen that determines the color, width, and style of the arc.
xInt32The x-coordinate of the upper-left corner of the rectangle that defines the ellipse.
yInt32The y-coordinate of the upper-left corner of the rectangle that defines the ellipse.
widthInt32Width of the rectangle that defines the ellipse.
heightInt32Height of the rectangle that defines the ellipse.
startAngleInt32Angle in degrees measured clockwise from the x-axis to the starting point of the arc.
sweepAngleInt32Angle in degrees measured clockwise from the startAngle parameter to ending point of the arc.

Exceptions

exceptioncondition
ArgumentNullExceptionpen is null.

See Also


Graphics.DrawArc method (4 of 4)

Draws an arc representing a portion of an ellipse specified by a Rectangle structure.

public void DrawArc(Pen pen, Rectangle rect, float startAngle, float sweepAngle)
ParameterTypeDescription
penPenPen that determines the color, width, and style of the arc.
rectRectangleRectangleF structure that defines the boundaries of the ellipse.
startAngleSingleAngle in degrees measured clockwise from the x-axis to the starting point of the arc.
sweepAngleSingleAngle in degrees measured clockwise from the startAngle parameter to ending point of the arc.

Exceptions

exceptioncondition
ArgumentNullExceptionpen 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