50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/** @file Definition of a 3x3 matrix, including operators when compiling in C++ */
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#ifndef AI_MATRIX3x3_H_INC
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#define AI_MATRIX3x3_H_INC
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct aiMatrix4x4;
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// ---------------------------------------------------------------------------
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/** Represents a column-major 3x3 matrix
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*/
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// ---------------------------------------------------------------------------
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struct aiMatrix3x3
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{
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#ifdef __cplusplus
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aiMatrix3x3 () :
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a1(1.0f), a2(0.0f), a3(0.0f),
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b1(0.0f), b2(1.0f), b3(0.0f),
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c1(0.0f), c2(0.0f), c3(1.0f) {}
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aiMatrix3x3 ( float _a1, float _a2, float _a3,
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float _b1, float _b2, float _b3,
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float _c1, float _c2, float _c3) :
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a1(_a1), a2(_a2), a3(_a3),
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b1(_b1), b2(_b2), b3(_b3),
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c1(_c1), c2(_c2), c3(_c3)
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{}
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/** Construction from a 4x4 matrix. The remaining parts of the matrix are ignored. */
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explicit aiMatrix3x3( const aiMatrix4x4& pMatrix);
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aiMatrix3x3& operator *= (const aiMatrix3x3& m);
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aiMatrix3x3 operator* (const aiMatrix3x3& m) const;
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aiMatrix3x3& Transpose();
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#endif // __cplusplus
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float a1, a2, a3;
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float b1, b2, b3;
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float c1, c2, c3;
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};
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#ifdef __cplusplus
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} // end of extern C
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#endif
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#endif // AI_MATRIX3x3_H_INC
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