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)

{
*** *** *** *** * *** * *
** * ** * *** * * ** * **
* * ** **** *** ***

}

double ThreeD::getx()

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

}

double ThreeD::gety()

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

}

double ThreeD::getz()

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

}



void ThreeD::dist(ThreeD other)

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



}

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;

}