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
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** * * ** *** ***** *** * *
* * **** * * ** * * ** * *** * * *** ****** * * 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()

{
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}

double ThreeD::gety()

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

}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
*** ** * * **** * ** sol;
* * ** ** ** ** *** ** ** x2,y2,z2;
* * ****** * * ***** * * ** * ** * * * ** **** *
* * * * ***** *** * * * * * * ** * ** *** *
* ** * *** ** ****** ** *** * ***** **
* * *** ** ***** * ** ** *** *
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** ** ** *** * * * * ** *** ** ** * *** ***** 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);
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* **** ** * ***** * * *** * * *
** * ** * **** ****** *** ** ** **
* ** * * * *** * **** ** ** * 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;

}