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;

}