ScaleTransform Method (Single, Single)
Collapse the table of content
Expand the table of content

Pen.ScaleTransform Method (Single, Single)

Scales the local geometric transformation by the specified factors. This method prepends the scaling matrix to the transformation.

Namespace:  System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

public void ScaleTransform(
	float sx,
	float sy


Type: System.Single
The factor by which to scale the transformation in the x-axis direction.
Type: System.Single
The factor by which to scale the transformation in the y-axis direction.

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 Pen.

Draws a rectangle using the pen.

Scales the pen by 2 times in the x-axis direction.

Draws a second rectangle to demonstrate the difference.

public void ScaleTransform_Example1(PaintEventArgs e)

    // Create a Pen object.
    Pen scalePen = new Pen(Color.Black, 5);

    // Draw a rectangle with scalePen.
    e.Graphics.DrawRectangle(scalePen, 10, 10, 100, 100);

    // Scale scalePen by 2X in the x-direction.
    scalePen.ScaleTransform(2, 1);

    // Draw a second rectangle with rotatePen.
    e.Graphics.DrawRectangle(scalePen, 120, 10, 100, 100);

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

© 2016 Microsoft