// subtract this point with the parameter point
// and return the result
public Point2D Subtract(Point2D Point)
{
Point2D NewPoint = new Point2D();
NewPoint.X = X - Point.X;
NewPoint.Y = Y - Point.Y;
return NewPoint;
}
// checks whether this point is equal to the parameter point
public Boolean IsEqualTo(Point2D Point)
{
if (X == Point.X && Y == Point.Y)
return true;
else
return false;
}
// add this point with the parameter point
// and return the result
public Point2D Add(Point2D Point)
{
Point2D NewPoint = new Point2D();
NewPoint.X = X + Point.X;
NewPoint.Y = Y + Point.Y;
return NewPoint;
}
// find the distance between this point and the parameter point
public Double DistanceTo(Point2D Point)
{
double xval = X - Point.X;
double yval = Y - Point.Y;
return System.Math.Sqrt(xval * xval + yval * yval);
}
// copy constructor
public Point2D(Point2D Point)
{
X = Point.X;
Y = Point.Y;
}
// set vector from two points
public Vector2D(Point2D StartPt, Point2D EndPt)
{
X = EndPt.X - StartPt.X;
Y = EndPt.Y - StartPt.Y;
}