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
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* ** * * * * ** * **
** * ** ** * * ** *** **** ** ** ** * 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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* ******** * ** ** ** *
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}

double ThreeD::getx()

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

}

double ThreeD::gety()

{
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}

double ThreeD::getz()

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

}



void ThreeD::dist(ThreeD other)

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



}

int main()

{


* ** * ** * * *** i,j,k;
* * * * * *** * ** ** *** *** ** * * * * * * * ** *
* ** ***** ** * * * * ** 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;

}