Matrix.IsIdentity Property
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Gets a value that indicates whether this Matrix structure is an identity matrix.
public:
property bool IsIdentity { bool get(); };
public bool IsIdentity { get; }
member this.IsIdentity : bool
Public ReadOnly Property IsIdentity As Boolean
Property Value
true
if the Matrix structure is an identity matrix; otherwise, false
. The default is true
.
Remarks
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, which is the implementation that Windows Presentation Foundation (WPF) uses for the Matrix structure, 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 |
For an identity matrix, the ToString method returns the string "Identity", instead of the coefficients of the Matrix.
Applies to
See also
反馈
https://aka.ms/ContentUserFeedback。
即将发布:在整个 2024 年,我们将逐步淘汰作为内容反馈机制的“GitHub 问题”,并将其取代为新的反馈系统。 有关详细信息,请参阅:提交和查看相关反馈