Matrix.RotateAt Method (Double, Double, Double)


Rotates this matrix about the specified point.

Namespace:   System.Windows.Media
Assembly:  WindowsBase (in WindowsBase.dll)

Public Sub RotateAt (
	angle As Double,
	centerX As Double,
	centerY As Double


Type: System.Double

The angle, in degrees, by which to rotate this matrix.

Type: System.Double

The x-coordinate of the point about which to rotate this matrix.

Type: System.Double

The y-coordinate of the point about which to rotate this matrix.

The following example shows how to rotate a Matrix about a specified point.

private Matrix rotateAboutPointExample()

    // Creating a Matrix structure.
    Matrix myMatrix = new Matrix(5, 10, 15, 20, 25, 30);

    // Rotate the matrix 90 degrees about the point (100,100).
    // myMatrix becomes equal to (-10, 4, -20, 15, 170, 25).
    myMatrix.RotateAt(90, 100, 100);

    return myMatrix; 


.NET Framework
Available since 3.0
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