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vect3D.cpp
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vect3D.cpp
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#include <cmath>
#include "vect3D.hpp"
Vect3D::Vect3D(GLdouble x, GLdouble y, GLdouble z) {
this->a[0] = x;
this->a[1] = y;
this->a[2] = z;
}
Vect3D::Vect3D(const Vect3D &v) {
a[0] = v.a[0];
a[1] = v.a[1];
a[2] = v.a[2];
}
Vect3D::Vect3D(const Vect3D &p1, const Vect3D &p2) {
a[0] = p2.a[0] - p1.a[0];
a[1] = p2.a[1] - p1.a[1];
a[2] = p2.a[2] - p1.a[1];
}
Vect3D::Vect3D() {
a[0] = 0;
a[1] = 0;
a[2] = 0;
}
Vect3D::~Vect3D(){}
Vect3D Vect3D::operator+(Vect3D v) {
Vect3D res;
res.a[0] = a[0] + v.a[0];
res.a[1] = a[1] + v.a[1];
res.a[2] = a[2] + v.a[2];
return(res);
}
Vect3D & Vect3D::operator+=(Vect3D v) {
a[0] += v.a[0];
a[1] += v.a[1];
a[2] += v.a[2];
return(*this);
}
Vect3D Vect3D::operator-(Vect3D v) {
Vect3D res;
res.a[0] = a[0] - v.a[0];
res.a[1] = a[1] - v.a[1];
res.a[2] = a[2] - v.a[2];
return(res);
}
Vect3D & Vect3D::operator-=(Vect3D v) {
a[0] -= v.a[0];
a[1] -= v.a[1];
a[2] -= v.a[2];
return(*this);
}
Vect3D Vect3D::operator-(void) {
Vect3D res;
res.a[0] = -a[0];
res.a[1] = -a[1];
res.a[2] = -a[2];
return(res);
}
Vect3D Vect3D::operator*(Vect3D v) {
Vect3D res;
res.a[0] = a[1] * v.a[2] - a[2] * v.a[1];
res.a[1] = a[2] * v.a[0] - a[0] * v.a[2];
res.a[2] = a[0] * v.a[1] - a[1] * v.a[0];
return (res);
}
Vect3D Vect3D::operator*(GLdouble t) {
Vect3D res;
res.a[0] = a[0] * t;
res.a[1] = a[1] * t;
res.a[2] = a[2] * t;
return (res);
}
Vect3D Vect3D::operator/(GLdouble t) {
Vect3D res;
res.a[0] = a[0] / t;
res.a[1] = a[1] / t;
res.a[2] = a[2] / t;
return (res);
}
GLdouble & Vect3D::operator[](int i){
return a[i];
}
bool Vect3D::operator!()
{
return (fabs(a[0]) < 0.000001f) && (fabs(a[1]) < 0.000001f) && (fabs(a[2]) < 0.000001f);
}
void Vect3D::operator ()(GLdouble x, GLdouble y, GLdouble z)
{
set(x, y, z);
}
GLdouble Vect3D::length()
{
return((GLdouble)sqrt(a[0]*a[0] + a[1]*a[1] + a[2]*a[2]));
}
void Vect3D::normalize()
{
GLdouble len;
len = length();
if (len) {
a[0] /= len;;
a[1] /= len;
a[2] /= len;
}
}
GLdouble Vect3D::innerProduct(Vect3D v)
{
return (a[0] * v.a[0] + a[1] * v.a[1] + a[2] * v.a[2]);
}
void Vect3D::copy(Vect3D v)
{
a[0] = v.a[0];
a[1] = v.a[1];
a[2] = v.a[2];
}
void Vect3D::set(GLdouble x,GLdouble y, GLdouble z)
{
this->a[0] = x;
this->a[1] = y;
this->a[2] = z;
}
Vect3D Vect3D::scalarMult(GLdouble t)
{
Vect3D res;
res.a[0] = a[0] * t;
res.a[1] = a[1] * t;
res.a[2] = a[2] * t;
return res;
}