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44 lines
1.0 KiB
44 lines
1.0 KiB
#ifndef VECTOR3_HPP
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#define VECTOR3_HPP
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#include <cmath>
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#include <iostream>
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class Vector3 {
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private:
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float x_, y_, z_;
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public:
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Vector3(float x = 0, float y = 0, float z = 0) : x_(x), y_(y), z_(z) {}
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// 访问器
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float x() const { return x_; }
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float y() const { return y_; }
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float z() const { return z_; }
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// 运算符
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Vector3 operator+(const Vector3& v) const;
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Vector3 operator-(const Vector3& v) const;
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Vector3 operator*(float s) const;
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Vector3 operator/(float s) const;
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Vector3 operator-() const;
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// 向量运算
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float dot(const Vector3& v) const;
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Vector3 cross(const Vector3& v) const;
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float norm() const;
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float normSquared() const;
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Vector3 normalized() const;
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// 比较
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bool operator==(const Vector3& v) const;
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bool operator!=(const Vector3& v) const;
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// 输出
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friend std::ostream& operator<<(std::ostream& os, const Vector3& v);
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};
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// 辅助函数：绕任意轴旋转向量（罗德里格斯旋转公式）
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Vector3 rotateAroundAxis(const Vector3& v, const Vector3& axis, float angle);
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#endif
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