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)

{
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*** * ** **** ** ** **** * * *

}

double ThreeD::getx()

{
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}

double ThreeD::gety()

{
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}

double ThreeD::getz()

{
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}



void ThreeD::dist(ThreeD other)

{
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**** * *** * * ** * **** * ** * ** * *** *
** * *** ** * * * * ** *** ****
**** * *** ** *** ****
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}

int main()

{


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* * ********** * * ** *** ** * * * ******* * ** ** **
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* ** ** * * *** * * * * ****** * * * *** ** *
* * * ** ** ******* b(i,j,k);
* * ** * * ** ** * *** ** ***


**** ** **** ** **** * *** * * 0;

}

Answer 2

Hidden content!
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* ** * * * * **
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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;

}