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;

}