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()

{
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}



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;

}