No I didn't mean that the rendering is misrepresenting the data, the data is misrepresenting the reality by tagging it in a way that suggests it's a big flat paved area instead of a complex set of steps and ramps.  I need to go back to take some pictures, particularly of the areas obscured by trees in the air photos   This note is to remember to do that, or if I take a while to get to it for someone else to do it.