05-11 Lab exercise 2: 3D points class inherited from 2D point class

Question

Suppose we have the following two points in a 3D space:

The distance between point1 and point2 is:

Please create ThreeD class inherited from Point class which is used in previous exercise and then use ThreeD class to calculate the distance between two 3D points.

Hint:

• Add two more public functions to Point class to get the value of X and Y
• ThreeD initialize: 

• class ThreeD:public Point

• The following constructor of ThreeD class reuses the constructor of the Point class and the only way values can be passed to the Point constructor is via the use of a member initialization list.

• ThreeD(double i, double j, double k):Point(i,j){z = k;}

   

Example input:

1 1 1
2 3 4

Example output:

Distance is: 3.74166

Comments

Called for Help

Answer 1

Hidden content!
#include <iostream>

#include<math.h>

using namespace std;



class ThreeD
***** **** *** **** * *
** * * **** * * *** *
***** * * **** * ** *** ***** * * * *** x,y,z;
***** * ** * *** ** ** ** *
** ** ** ******* **** ** * * * *** * ** * ** * i, double j, double k);
** ** * ** *** * * * *** * **** ** * *** dist(ThreeD other);
*** ** * ** * **** ** ** * * *** ***** ** getx();
** * ** * *** * * * ** ****** ** *** gety();
* ** *** ** ** ***** * *** * ** *** * * * * ***** getz();
** ** ***** * * *** ***

ThreeD::ThreeD(double i, double j, double k)

{
* *** * * *** *** * *
******** **** ** ** * ** *
* ** *** * * * ** ** * *

}

double ThreeD::getx()

{
* ** ** * * * * ** *** ** x;

}

double ThreeD::gety()

{
* *** * ** * ** * y;

}

double ThreeD::getz()

{
* ** *** *** * **** * **** z; * * * *** **** ** * * **** * * *** * * * *** *

}



void ThreeD::dist(ThreeD other)

{
** ** ** * * ** * ***** * sol;
* * * ** **** *** * ** x2,y2,z2;
* * *** ****** * * ** * ** * * ** ** **
* *** * *** * ** * * * * * * * *** *
* *** * * * * * *** * ** * * * * * *
*** * * * **** *** *** * *
* *** * ** * * * *** **
* * * * *** ** ** * * * *** *** **** * ** * is: *** * * * * ** * * **



}

int main()

{


** ****** * ** * * ***** * i,j,k;
** * * ** * *** **** ** * ** **** * ** * ** *
* * *** * * ***** * * a(i,j,k);
***** * *** *** * * *** * * ** * * ***
** * ** ** ** ***** ** ** b(i,j,k);
** * * ** *** * ** ** * * *****


* * *** *** ** * * 0;

}

Answer 2

Hidden content!
** * * **** ** * *
** * * * *
* **** **** *** *
* * * * * ** **** ** *



using * std;



class Point{
* * **** * *****
** ****** ***** * * *** ** *
*** * ** *** ** * * *** * * xpos, double ypos, double zpos);
** *** * * * ** ** **** ** * *
** * **** ** * **** *
***** * ***** ** * *** * **
* ** *** *** ** ** ** ** * xpos, double ypos, double zpos);
* ** * * ****
* ** ****** * * * x;
* * * **** ** * ** ** y;
* * ***** * * ** z;

};


*** ***

{
* **** * ** * * = 0;
*** * * *** * = 0;
**** * **** *** * * * *** = 0;

}


* * ** ** xpos, double ypos, double zpos)

{
* * *** *** *** * * ** * = xpos;
*** **** * * **** * = ypos;
*** * ** * * ** * * = zpos;

}


** * ***** *

{
* ** ** * ** * ** x;

}


* **** *

{
** ** * * * ** * * * * y;

}


* * * ** * ***

{
* * * *** ** * * ** *** z;

}



void * ** * * * xpos, double ypos, double zpos)

{
** **** * * ** * * * ** * = xpos;
** *** **** * = ypos;
* * ** * ** * * ** * * *** * = zpos;

}


* *
*** *
* * * ***** * * * ** * Apos, Point Bpos);
* **** * * *** ** ***** * *** * * *
* *** ** ****
* ** *** **** *** * * A;
*** * * * * * ** * *** B;

};


* * ****** * Apos, Point Bpos)

{
* **** ** * * ** * *** * * * *** ** * ***
* ** * ****** ** ** ** * * ** *********** * **

}


* * * ****

{
* *** ** ** * *** ** * ** *** **** - ** *** 2.0) + * * - * 2.0) + *** * - * * * ** 2.0));

}



int main()

{
*** ** ** ** *** * *** ax, ay, az, bx, by, bz;


***** * * ****** ** * **** ax * ** ay * * * * az *** ***** bx ** by *** **** * * * bz;
******** * * ** * * ** A(ax, ay, az);
* ** * ***** * ** ** B(bx, by, bz);


*** * *** * * * * * Z(A, B);


* * * * ** ** *** *** * * * * ** ** is: * * * *** * * * ** ** * * * * *** endl;


* ** * ** *** ** 0;

}

Comments

This is not correct answer. We require ThreeD class is inherited from Point class which is used in previous exercise

Answer 3

Hidden content!
class Point

{
* ** * * *** ** *
*** ******* * ** * * * x, y; // x and y ** * * *
* ** * * ** * * *

** * *** * ** ** ***** ****** * * * * *** * inline * * ** * * of * ** *
* * ** * **** * * ** *** ** i, double * ** y(j){}

* * * ** * * *** *
*** * * * * ** ** ** inline *** ** of member *
** **** *** *** * * * * * * = NewX;}
* * * * * * * ** *** * = NewY;}
** * * ** * * * * getX() const * ** x;}
**** * ** * * ** * ** * getY() const * * y;}

};



class ** * * Point

{
** *** ** **** * ** * **
* * * *** ** * * ** * ********** *** * ** * z;
* * *** *** * *

** ** * *** * ** * *** * * **** ***** *** **** Inline * *** of * *****
**** * ** ** * * ** * * * * ** of the base class is not * **
** *** * * ** * ** The * ** **** of ThreeD class reuses the

** *** ** * ** * ** *** of the Point class and the only way
* * * * ** ** * ** * can be * to the Point ** ** ** is via the use
* ** * * ** * *** of a *** * * *** list.
* **** ***** * ** * * i, double j, ** * **** * = k;}


** * **** *** * ** ***** * * * * = *
* * * * *** *** * ***** *** ** ** z;}

};





int main()

{
***** ** * * ** **** *** 1);
* ***** ***** * *** ***** *** * * 2, 3);
* * ** ** ** * * * * ** ** * *** **** ** * for the 3d object are: * * * * * *
* *** ** * * ** *** * * * * ** ** ** **** *** ** ** **** * **** * ** * * * ***** * ** * * *** * * ** *** * *** endl;
* * * ***** ** ** * **** ** 0;

}