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;

}