L_Matrix_IsIdentity

Summary

Indicates whether the specified L_MATRIX is an identity matrix.

Syntax

#include "LtPrimitives.h"

L_LTKRN_API L_BOOL L_Matrix_IsIdentity(matrix)

Parameters

const L_MATRIX* matrix

Pointer to the L_MATRIX to test.

Returns

Value Meaning
TRUE The L_MATRIX is an identity matrix.
FALSE The L_MATRIX is not an identity matrix.

Comments

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.

image\matrix2.jpg

Required DLLs and Libraries

Platforms

Win32, x64, Linux.

See Also

Structures

Topics

Help Version 22.0.2022.10.26
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LEADTOOLS Raster Imaging C API Help

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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.