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;

}