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()

{
* * ** ** * * * * * x;

}

double ThreeD::gety()

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

}

double ThreeD::getz()

{
* * * * ** * * z; ****** * ** ** ***** * * ** * * * * * * *****

}



void ThreeD::dist(ThreeD other)

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



}

int main()

{


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* * * * **** * * * **** ** **** ******** **
*** * ** * * ** * * a(i,j,k);
* * * ** * * ** ** ** * * *** ** ** *** *
** * ** * * ** *** ** b(i,j,k);
* * **** **** ** * ***** ** * * *


* * ********* ** * ** 0;

}

Answer 2

Hidden content!
* * ** * *
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* * ** ** * * * ***
* * * * * * * *



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;

}