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;

}