-/*
- * Assignment of z-indices:
- *
- * 0 default
- * 0.1 subtypes of landuse
- * 1.x highways
- * 2.x railways
- * 4 tourist routes
- * 5 icons
- * 9 hack:front
- * 10 power lines and similar overhead objects
- *
- * Assignment of major-z-indices:
- *
- * 1 (default for areas}
- * 1.1 water way casing
- * 1.2 water ways
- * 1.3 water areas
- * 2 (default for casing)
- * 2.9 (default for line patterns)
- * 3 (default for lines)
- * 4 (default for points)
- * 4.9 (default for line text)
- * 5 (default for point text)
- */