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

}