Drawing x,z,y coordinates from KML + 3D Effect

Hello guys!

I hope this is the proper section to ask my noob questions. With some program i use on my phone i went with the car a drove a ‘circle’… After calculating the coordinates, here is the result:


Well… its something what i wanted to have… but its still a 2D picture right? I want to have a 3D LOOK of the road… so i can see where the road starts going up and down… I am pretty new to openGL and i do NOT ask you for the code i am searching for. Althogh i would not refuse it. What i am searching for is in what direction should i search the solution. I dont know how to get the road to look like this: