Matrix.IsIdentity Property

Gets a value that indicates whether this Matrix structure is an identity matrix.

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

public bool IsIdentity { get; }

Property Value

Type: System.Boolean
true if the Matrix structure is an identity matrix; otherwise, false. The default is true.

An identity matrix has a value of 1 in coefficients [1,1],[2,2],[3,3] and a value of 0 in the rest of the coefficients. This correlates to setting M11 and M22 to 1 and M12, M21, OffsetX, and OffsetY to 0. In an affine matrix, coefficients [3,1],[3,2],[3,3] are implied to always have the values 0,0,1 respectively.

1

0

0

0

1

0

0

0

1

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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