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;

}