Vec3f not defined

[mjepson]

I am trying to create a vector<Vec3f> in Visual C++ 2010, but somehow the compiler keeps telling me it doesn't know what Vec3f is.
I have the following includes:

#include <highgui.h>
#include "cv.h"
#include "Line.h"
#include <vector>

How can I get Visual Studio to know the Vec3f identifier?

Thank you very much.

[Moschops]

In which of those headers do you think Vec3f is defined? Have you looked in it to check?

[mjepson]

Well, that was the main problem, I didn't have a clue where the damn thing should have been defined.
But, as I have just discovered (sometimes just walking away and doing something else for a while seems to help), it was supposed to be defined in the OpenCV core.h file (which wasn't available in the project). Luckily I could get it from the internet (A complete OpenCV installation), so it works now.