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;

}