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

}