geom.cpp

#include <iostream>
#include <cmath>
#include <cstdlib>
using namespace std;

class Point
{
 private:

    double x;               //x coordinate
    double y;               //y coordinate
    double c;               //distance to

 public:

    Point()
    {
        x = 0;
        y = 0;
    }

    Point(double xCoord, double yCoord)
    {
        x = xCoord;
        y = yCoord;
    }

    double getX() const
    {
        return x;
    }

    double getY() const
    {
        return y;
    }

    //a^2 + b^2 = c^2 - find the hypotenuse
    double distanceTo(const Point& pointTo)
    {
        c = sqrt(pow(abs((x - pointTo.getX())), 2) + pow(abs((y - pointTo.getY())), 2));
        return c;
    }

};

class LineSegment
{
 private:

    Point start;
    Point finish;
    double len;
    double s;

 public:

    LineSegment(Point line1, Point line2)
    {
        start = line1;
        finish = line2;
    }

    double length()
    {
         len = start.distanceTo(finish);
         return len;
    }

    double slope()
    {
        if((finish.getX()-start.getX()) != 0)
        {
          s = ((finish.getY()-start.getY())/ (finish.getX()-start.getX()));
          return s;
        }

        else
        {
            s = 0;
            return s;
        }
    }
};

int main ()
{
    double x1;
    double x2;
    double y1;
    double y2;
    char again;

    do{

        cout << "Please enter the coordinates for the first point, in the form of 'X, Y'." << endl;
        cin >> x1;
        cin >> y1;

        cout << "Please enter the coordinates for the second point, in the form 'X, Y'." << endl;
        cin >> x2;
        cin >> y2;

        Point point1 (x1, y1);
        Point point2 (x2,y2);
        LineSegment slopeFind(point1, point2);

        cout << "The distance between the points is " << slopeFind.length() << "." << endl;

        if(slopeFind.slope() == 0)
        {
            cout << "The line segment is vertical, thus having no slope.\n";
        }

        if(slopeFind.slope() > 0)
        {
            cout << "The slope of the line is " << slopeFind.slope() << ".\n";
        }

        cout << "Would you like to repeat with new coordinates? (Y/N): ";
        cin >> again;

    }while(again == 'Y' || again == 'y');

    return 0;
}