Qt - how to map ,map coordinates to image pixel in an scene

Question

I have created an Scene in Qt where i took the an image from open street map[.png] and placed it into the Scene . I have also exported its coordinates in an another file .My Question is how do I map my image pixel with the map coordinates. basically i want to plot the roads in the map into my image .Thank you

Answer 1

here is the answer I was looking for Convert Lat/Longs to X/Y Co-ordinates

Answer 2

Does the download from openstreetmap give you any coords and scale for the image tile?

If not then you have to find some objects in the scene and get their world coords from somewhere