Having trouble outputting using class - c++

Question

I am having trouble with the output part of the problem, I am getting errors on the lines that say bottom right, top left, and dimension. What am i doing wrong?
I have tried many things and I just do not know how to get it to work correctly, and we have not gone over anything like this kind of output in class:
#include <iostream>
#include <cmath>
using namespace std;
class Point
{
private:
double px;
double py;
public:
void setX(const double x);
void setY(const double y);
double getX() const;
double getY() const;
};
class Triangle
{
private:
Point blPoint;
double length, height;
public:
// member functions
void setBottomLeftX(const double x);
void setBottomLeftY(const double y);
void setLength(const double inLength);
void setHeight(const double inHeight);
Point getBottomLeft() const;
Point getBottomRight() const;
Point getTopLeft() const;
double getLength() const;
double getHeight() const;
double perimeter() const;
double hypotenuse() const;
void scaleLength(const double sx);
void scaleHeight(const double sy);
void display() const;
};
// FUNCTION PROTOTYPES GO HERE:
double read_triangle(Triangle & tri);
int main()
{
// Define local variables
Triangle tri;
double sx, sy;
//Prompt the user for triangle information and fill Class Triangle object, tri,
//with this information
read_triangle(tri);
// Display triangle information
tri.display();
// Prompt and read scale factors to change length and height
cout << "Enter scale factor in x direction: ";
cin >> sx;
cout << "Enter scale factor in y direction: ";
cin >> sy;
// Apply scale factors
tri.scaleLength(sx);
tri.scaleHeight(sy);
// Display triangle information
tri.display();
return 0;
}
// FUNCTION DEFINITIONS GO HERE:
// CLASS MEMBER FUNCTION DEFINITINOS GO HERE:
void Point::setX(const double x)
{
px = x;
}
void Point::setY(const double y)
{
py = y;
}
double Point::getX() const
{
return (px);
}
double Point::getY() const
{
return (py);
}
void Triangle::setBottomLeftX(const double x)
{
/* INSERT YOUR CODE */
blPoint.setX(x);
}
void Triangle::setBottomLeftY(const double y)
{
/* INSERT YOUR CODE */
blPoint.setY(y);
}
void Triangle::setLength(const double inLength)
{
/* INSERT YOUR CODE */
length=inLength;
}
void Triangle::setHeight(const double inHeight)
{
/* INSERT YOUR CODE */
height=inHeight;
}
Point Triangle::getBottomLeft() const
{
/* INSERT YOUR CODE */
return (blPoint);
}
Point Triangle::getBottomRight() const
{
/* INSERT YOUR CODE */
Point getBottomRight;
double mx = (blPoint.getX()+ length);
getBottomRight.setX(mx);
return(getBottomRight);
}
Point Triangle::getTopLeft() const
{
/* INSERT YOUR CODE */
Point getTopLeft;
double my = (blPoint.getY()+ height);
getTopLeft.setY(my);
return (getTopLeft);
}
double Triangle::getLength() const
{
/* INSERT YOUR CODE */
return (length);
}
double Triangle::getHeight() const
{
/* INSERT YOUR CODE */
return (height);
}
double Triangle::hypotenuse() const
{
/* INSERT YOUR CODE */
//hypotenuse = (sqrt((height * height)+(length * length)));
return (sqrt((height * height)+(length * length)));
}
double Triangle::perimeter() const
{
/* INSERT YOUR CODE */
//perimeter = ((sqrt((height * height)+(length * length)))+ height + length);
return ((sqrt((height * height)+(length * length)))+ height + length);
}
void Triangle::scaleLength(const double scalefact)
{
/* INSERT YOUR CODE */
length = scalefact * length;
}
void Triangle::scaleHeight(const double scalefact)
{
/* INSERT YOUR CODE */
height = scalefact * height;
}
void Triangle::display() const
{
/* INSERT YOUR CODE */
cout <<"---------------------------------------" << endl;
cout << "Lower Left Vertex (" << blPoint.getX() << ", " << blPoint.getY() << ')' <<endl;
cout << "Top Left Vertex (" << blPoint.getX() << ", " << getTopLeft.getY() << ')' << endl;
cout << "Bottom Right Vertex (" << getBottomRight.getX() << ", " << blPoint.getY() << ')' << endl;
cout << "Dimensions (" << getBottomRight.getX()- blPoint.getX() << ", " << getTopleft.getY() - blPoint.getY() << ')' << endl;
cout << "Hypotenuse = " << hypotenuse() << endl;
cout << "Perimeter = " << perimeter() << endl;
cout <<"---------------------------------------" << endl;
}
double read_triangle(Triangle & tri)
{
/* INSERT YOUR CODE */
double x, y, inLength, inHeight;
cout << "Enter bottom left x coordinate: ";
cin >> x;
tri.setBottomLeftX(x);
cout << "Enter bottom left y coordinate: ";
cin >> y ;
tri.setBottomLeftY(y);
cout << "Enter length: ";
cin >> inLength;
tri.setLength(inLength);
cout << "Enter Height: ";
cin >> inHeight;
tri.setHeight(inHeight);
}

Answer 1

You are using the functions like they are variables you need to add () to call them correctly:
cout << "Top Left Vertex (" << blPoint.getX() << ", " << getTopLeft().getY() << ')' << endl;
^^
cout << "Bottom Right Vertex (" << getBottomRight().getX() << ", " << blPoint.getY() << ')' << endl;
^^
cout << "Dimensions (" << getBottomRight().getX()- blPoint.getX() << ", " << getTopLeft().getY() - blPoint.getY() << ')' << endl;
^^ ^^
Also, read_triangle does not have a return statement but you declare that it returns double. Flowing off the end of a value returning function is undefined behavior and therefore you can not rely on the results. It does not look like you are using the results so you may want to just change the function to return void and that will fix it.