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)

{
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* ** ***** * * *** * *

}

double ThreeD::getx()

{
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}

double ThreeD::gety()

{
* * * **** ** * * * y;

}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
** *** * * *** * ** * * sol;
*** *** * ** ***** ** **** ** x2,y2,z2;
* *** ** ** * ** * * **** * *
** * *** ****** **** * ** * * ** **** ** ** **
* ***** ******** **** * ** * *** * ** * * **
* * ***** * * * * * * ** * **
*** * * ** * *
*** * ** * ** * ** **** * * ** * * * *** * is: * * *** *** *** ****



}

int main()

{


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* * *** ** ** ** **** * 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;

}