Graphics.DrawArc
DrawArc(Pen, float, float, float, float, float, float)
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)
Parameter | Type | Description |
---|
pen | Pen | Pen that determines the color, width, and style of the arc. |
x | Single | The x-coordinate of the upper-left corner of the rectangle that defines the ellipse. |
y | Single | The y-coordinate of the upper-left corner of the rectangle that defines the ellipse. |
width | Single | Width of the rectangle that defines the ellipse. |
height | Single | Height of the rectangle that defines the ellipse. |
startAngle | Single | Angle in degrees measured clockwise from the x-axis to the starting point of the arc. |
sweepAngle | Single | Angle in degrees measured clockwise from the startAngle parameter to ending point of the arc. |
Exceptions
exception | condition |
---|
ArgumentNullException | pen is null. |
See Also
DrawArc(Pen, RectangleF, float, float)
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)
Parameter | Type | Description |
---|
pen | Pen | Pen that determines the color, width, and style of the arc. |
rect | RectangleF | RectangleF structure that defines the boundaries of the ellipse. |
startAngle | Single | Angle in degrees measured clockwise from the x-axis to the starting point of the arc. |
sweepAngle | Single | Angle in degrees measured clockwise from the startAngle parameter to ending point of the arc. |
Exceptions
exception | condition |
---|
ArgumentNullException | pen is null |
See Also
DrawArc(Pen, int, int, int, int, int, int)
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)
Parameter | Type | Description |
---|
pen | Pen | Pen that determines the color, width, and style of the arc. |
x | Int32 | The x-coordinate of the upper-left corner of the rectangle that defines the ellipse. |
y | Int32 | The y-coordinate of the upper-left corner of the rectangle that defines the ellipse. |
width | Int32 | Width of the rectangle that defines the ellipse. |
height | Int32 | Height of the rectangle that defines the ellipse. |
startAngle | Int32 | Angle in degrees measured clockwise from the x-axis to the starting point of the arc. |
sweepAngle | Int32 | Angle in degrees measured clockwise from the startAngle parameter to ending point of the arc. |
Exceptions
exception | condition |
---|
ArgumentNullException | pen is null. |
See Also
DrawArc(Pen, Rectangle, float, float)
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)
Parameter | Type | Description |
---|
pen | Pen | Pen that determines the color, width, and style of the arc. |
rect | Rectangle | RectangleF structure that defines the boundaries of the ellipse. |
startAngle | Single | Angle in degrees measured clockwise from the x-axis to the starting point of the arc. |
sweepAngle | Single | Angle in degrees measured clockwise from the startAngle parameter to ending point of the arc. |
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