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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* ********* ** * **

}

double ThreeD::getx()

{
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}

double ThreeD::gety()

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

}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
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* **** * * * *** * x2,y2,z2;
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* * ** *** * * ** * * **** * ****** * *
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}

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;

}