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44 lines
966 B
C
44 lines
966 B
C
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#ifndef MATH_MATRIX3_H
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#define MATH_MATRIX3_H
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#include <iostream>
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#include <cmath>
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class Mat4;
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class Mat3 {
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public:
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union {
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float e[3][3];
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float cr[9];
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};
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Mat3(void);
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Mat3(float f);
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Mat3(float *f);
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Mat3(float e00, float e10, float e20,
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float e01, float e11, float e21,
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float e02, float e12, float e22);
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Mat3(const Mat4 &m);
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float *ptr(void);
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static Mat3 rotation(float theta, const Vec3 &v);
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static Mat3 rotation(const Quat &v);
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static Mat3 scale(const Vec3 &v);
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Mat3 transpose(void) const;
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Mat3 operator+(const Mat3 &rhs) const;
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Mat3 operator-(const Mat3 &rhs) const;
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Mat3 operator*(float rhs) const;
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Mat3 operator/(float rhs) const;
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Mat3 operator*(const Mat3 &rhs) const;
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Vec3 operator*(const Vec3 &rhs) const;
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Mat3 &operator+=(const Mat3 &rhs);
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Mat3 &operator-=(const Mat3 &rhs);
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Mat3 &operator*=(float rhs);
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Mat3 &operator/=(float rhs);
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Mat3 &operator*=(const Mat3 &rhs);
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void print(std::ostream &of) const;
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};
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#endif
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