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;

}