public void SetFlatness()
{
Flatness = MapUtil.GetSlopeMap(Elevation);
MapUtil.TransformMapMinMax(ref Flatness, MapUtil.dNormalize);
MapUtil.TransformMap(ref Flatness, MapUtil.dInvert, 0f);
MapUtil.TransformMap(ref Flatness, MapUtil.dExponentiate, 0.5f);
}