Point3D.cpp

#include <math.h>
#include "Point3D.h"

Point3D::Point3D()
: x(0), y(0), z(0)
{}

Point3D::Point3D(const double a)
: x(a), y(a), z(a)
{}

Point3D::Point3D(const double a, const double b, const double c)
: x(a), y(b), z(c)
{}

Point3D::Point3D(const Point3D& p)
: x(p.x), y(p.y), z(p.z)
{}

Point3D::~Point3D()
{}

Point3D& Point3D::operator= (const Point3D& rhs) {
	if(this == &rhs)
		return (*this);

	x = rhs.x; y = rhs.y; z = rhs.z;

	return(*this);
}

double Point3D::distance(const Point3D& p) const {
	return (sqrt(		(x - p.x) * (x - p.x) 
					+ 	(y - p.y) * (y - p.y)
					+	(z - p.z) * (z - p.z) ));

}

Point3D operator* (const Matrix& mat, const Point3D& p) {
	return (Point3D(mat.m[0][0] * p.x + mat.m[0][1] * p.y + mat.m[0][2] * p.z + mat.m[0][3],
					mat.m[1][0] * p.x + mat.m[1][1] * p.y + mat.m[1][2] * p.z + mat.m[1][3],
					mat.m[2][0] * p.x + mat.m[2][1] * p.y + mat.m[2][2] * p.z + mat.m[2][3]));

}