Graphics.DrawArc Method

Definition

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

Overloads

DrawArc(Pen, Rectangle, Single, Single)

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

DrawArc(Pen, RectangleF, Single, Single)

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

DrawArc(Pen, Int32, Int32, Int32, Int32, Int32, Int32)

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

DrawArc(Pen, Single, Single, Single, Single, Single, Single)

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

DrawArc(Pen, Rectangle, Single, Single)

Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs

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

C#
public void DrawArc(System.Drawing.Pen pen, System.Drawing.Rectangle rect, float startAngle, float sweepAngle);

Parameters

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

pen is null.

Examples

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates a rectangle to bound an ellipse.

  • Defines the start (45 degrees) and sweep (270 degrees) angles.

  • Draws the elliptical arc to the screen.

The result is a partial ellipse missing a segment between + and - 45 degrees of the x axis.

C#
private void DrawArcRectangle(PaintEventArgs e)
{
   // Create pen.
    Pen blackPen= new Pen(Color.Black, 3);
             
    // Create rectangle to bound ellipse.
    Rectangle rect = new Rectangle(0, 0, 100, 200);
             
    // Create start and sweep angles on ellipse.
    float startAngle =  45.0F;
    float sweepAngle = 270.0F;
             
    // Draw arc to screen.
    e.Graphics.DrawArc(blackPen, rect, startAngle, sweepAngle);
}

Remarks

This method draws an arc that is a portion of the perimeter of an ellipse. The ellipse is defined by the boundaries of a rectangle. The arc is the portion of the perimeter of the ellipse between the startAngle parameter and the startAngle + sweepAngle parameters.

Applies to

.NET 9 (package-provided) and other versions
Product Versions
.NET 8 (package-provided), 9 (package-provided)
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1
.NET Standard 2.0 (package-provided)
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9

DrawArc(Pen, RectangleF, Single, Single)

Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs

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

C#
public void DrawArc(System.Drawing.Pen pen, System.Drawing.RectangleF rect, float startAngle, float sweepAngle);

Parameters

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

pen is null

Examples

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates a rectangle to bound an ellipse.

  • Defines the start (45 degrees) and sweep (270 degrees) angles.

  • Draws the elliptical arc to the screen.

The result is a partial ellipse missing a segment between + and - 45 degrees of the x axis.

C#
private void DrawArcRectangleF(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen= new Pen(Color.Black, 3);
             
    // Create rectangle to bound ellipse.
    RectangleF rect = new RectangleF(0.0F, 0.0F, 100.0F, 200.0F);
             
    // Create start and sweep angles on ellipse.
    float startAngle =  45.0F;
    float sweepAngle = 270.0F;
             
    // Draw arc to screen.
    e.Graphics.DrawArc(blackPen, rect, startAngle, sweepAngle);
}

Remarks

This method draws an arc that is a portion of the perimeter of an ellipse. The ellipse is defined by the boundaries of a rectangle. The arc is the portion of the perimeter of the ellipse between the startAngle parameter and the startAngle + sweepAngle parameters.

Applies to

.NET 9 (package-provided) and other versions
Product Versions
.NET 8 (package-provided), 9 (package-provided)
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1
.NET Standard 2.0 (package-provided)
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9

DrawArc(Pen, Int32, Int32, Int32, Int32, Int32, Int32)

Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs

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

C#
public void DrawArc(System.Drawing.Pen pen, int x, int y, int width, int height, int startAngle, int sweepAngle);

Parameters

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

pen is null.

Examples

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates the position and size of a rectangle to bound an ellipse.

  • Defines the start (45 degrees) and sweep (270 degrees) angles.

  • Draws the elliptical arc to the screen.

The result is a partial ellipse missing a segment between + and - 45 degrees of the x axis.

C#
private void DrawArcInt(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen= new Pen(Color.Black, 3);
             
    // Create coordinates of rectangle to bound ellipse.
    int x = 0;
    int y = 0;
    int width = 100;
    int height = 200;
             
    // Create start and sweep angles on ellipse.
    int startAngle =  45;
    int sweepAngle = 270;
             
    // Draw arc to screen.
    e.Graphics.DrawArc(blackPen, x, y, width, height, startAngle, sweepAngle);
}

Remarks

This method draws an arc that is a portion of the perimeter of an ellipse. The ellipse is defined by the boundaries of a rectangle. The arc is the portion of the perimeter of the ellipse between the startAngle parameter and the startAngle + sweepAngle parameters.

Applies to

.NET 9 (package-provided) and other versions
Product Versions
.NET 8 (package-provided), 9 (package-provided)
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1
.NET Standard 2.0 (package-provided)
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9

DrawArc(Pen, Single, Single, Single, Single, Single, Single)

Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs
Source:
Graphics.cs

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

C#
public void DrawArc(System.Drawing.Pen pen, float x, float y, float width, float height, float startAngle, float sweepAngle);

Parameters

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

pen is null.

Examples

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates a black pen.

  • Creates the position and size of a rectangle to bound an ellipse.

  • Defines the start (45 degrees) and sweep (270 degrees) angles.

  • Draws the elliptical arc to the screen.

The result is a partial ellipse missing a segment between + and - 45 degrees of the x axis.

C#
private void DrawArcFloat(PaintEventArgs e)
{
    // Create pen.
    Pen blackPen= new Pen(Color.Black, 3);
             
    // Create coordinates of rectangle to bound ellipse.
    float x = 0.0F;
    float y = 0.0F;
    float width = 100.0F;
    float height = 200.0F;
             
    // Create start and sweep angles on ellipse.
    float startAngle =  45.0F;
    float sweepAngle = 270.0F;
             
    // Draw arc to screen.
    e.Graphics.DrawArc(blackPen, x, y, width, height, startAngle, sweepAngle);
}

Remarks

This method draws an arc that is a portion of the perimeter of an ellipse. The ellipse is defined by the boundaries of a rectangle. The arc is the portion of the perimeter of the ellipse between the startAngle parameter and the startAngle + sweepAngle parameters.

Applies to

.NET 9 (package-provided) and other versions
Product Versions
.NET 8 (package-provided), 9 (package-provided)
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1
.NET Standard 2.0 (package-provided)
Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9