I use a top view camera for other purposes, but if you use it and then press prt_scr (print screen) on your keyboard and then paste it in a image program, i think you will have your image. Play with those values.
Hope it helps.
Code:
camera.x = 0;
camera.y = 0;
camera.z = 38400;
camera.pan = 180;
camera.tilt = -90;
camera.roll = 0;
camera.arc = 77;
