====== Example Area Input File - Building Bottom Section ======
Additional section defining non-zero building bottoms:
\BOTTOM\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 5 5 5 5 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 5 5 5 5 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 5 5 5 5 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0\\
or, if no special bottoms are defined one single line starting with "%" replaces the complete section:
''%nobottoms or any text''