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;

}