So the points are stored in vector as I mentioned in my previous post. I am still stuck with repainting of these points in the graphics view. Only the first point painted is visible in the graphics scene.
Earlier, the functionality of repaint was achieved by means of a signal-slot which we discovered not to be befitting for correct implementations subsequently. This signal was emitted every time a point was painted in the scene. But if same approach is followed now as well, the vector continues to have coordinates of one point only with its capacity equal to 2.
Expecting to see such issues in near future as well where we will be confronting the fact that yes, this has to work another way around. Things will be changing. This is all a part of learning.
Also got hands into implementation of arc on mouse clicks with 3 points.
Looking into repainting issue for now!