46 lines
1.6 KiB
C
46 lines
1.6 KiB
C
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// vect.h -- Vector class with <<, mode state
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#ifndef VECTOR_H_
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#define VECTOR_H_
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#include <iostream>
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namespace VECTOR
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{
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class Vector
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{
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public:
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enum Mode {RECT, POL};
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// RECT for rectangular, POL for Polar modes
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private:
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double x; // horizontal value
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double y; // vertical value
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double mag; // length of vector
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double ang; // direction of vector in degrees
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Mode mode; // RECT or POL
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// private methods for setting values
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void set_mag();
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void set_ang();
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void set_x();
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void set_y();
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public:
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Vector();
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Vector(double n1, double n2, Mode form = RECT);
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void reset(double n1, double n2, Mode form = RECT);
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~Vector();
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double xval() const {return x;} // report x value
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double yval() const {return y;} // report y value
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double magval() const {return mag;} // report magnitude
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double angval() const {return ang;} // report angle
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void polar_mode(); // set mode to POL
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void rect_mode(); // set mode to RECT
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// operator overloading
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Vector operator+(const Vector & b) const;
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Vector operator-(const Vector & b) const;
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Vector operator-() const;
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Vector operator*(double n) const;
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// friends
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friend Vector operator*(double n, const Vector & a);
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friend std::ostream & operator<<(std::ostream & os, const Vector & v);
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};
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} // end namespace VECTOR
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#endif
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