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;

}