getting edge elevation screen data

If anyone has used an edge 1000 or other edge cycling gps you will know there is an elevation screen that can display the upcoming grade of the road you are currently on so that you can see how hard the upcoming climb is.

I have been looking through the API docs but I have not found anything that looks like this information, does anyone know if it is available?

I have found the Activity & Position data, but those just appear to be current point in time information and not the upcoming future elevation & grade information that the built in screen provides.

I have an idea for an app but would need this elevation map data to get it done. Hopefully I am just missing it in the documentation, please let me know if you know how to get or calculate this data.