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;

}