source: trunk/packages/vizservers/nanovis/vrmath/include/vrmath/vrVector2f.h @ 2798

/* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
#pragma once
#include <vrmath/vrLinmath.h>

#include <cstdlib>
#include <cmath>

//#define LmExport 
class LmExport vrVector2f {
public :
        float   x, y;

public :
        vrVector2f() : x(0.0f), y(0.0f) {}
        vrVector2f(const vrVector2f& v) : x(v.x), y(v.y) {}
        vrVector2f(float x1, float y1) : x(x1), y(y1) {}

        void set(float x1, float y1);
        void set(const vrVector2f& v);

        float dot() const;
        float length() const;
        float distance(const vrVector2f& v) const;
        float distance(float x1, float y1) const;
        float distanceSquare(const vrVector2f& v) const;
        float distanceSquare(float x1, float y1) const;
};

inline void vrVector2f::set(float x1, float y1)
{
        x = x1;
        y = y1;
}

inline void vrVector2f::set(const vrVector2f& v)
{
        x = v.x;
        y = v.y;
}

inline float vrVector2f::dot() const
{
        return (x * x + y * y);
}


inline float vrVector2f::length() const
{
        return sqrt(x * x + y * y);
}



inline float vrVector2f::distance(const vrVector2f& v) const
{
        float x1 = (v.x - x) , y1 = (v.y - y);
        return sqrt(x1 * x1 + y1 * y1);
}



inline float vrVector2f::distance(float x1, float y1) const
{       
        float x2 = (x1 - x) , y2 = (y1 - y);
        return sqrt(x2 * x2 + y2 * y2);
}




inline float vrVector2f::distanceSquare(const vrVector2f& v) const
{       
        float x1 = (v.x - x) , y1 = (v.y - y);
        return (x1 * x1 + y1 * y1);
}

inline float vrVector2f::distanceSquare(float x1, float y1) const
{       
        float x2 = (x1 - x) , y2 = (y1 - y);
        return (x2 * x2 + y2 * y2);
}