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;

}