Added pictures.

pics/region.fig

+#FIG 3.2  Produced by xfig version 3.2.5b
+Landscape
+Center
+Metric
+A4      
+100.00
+Single
+-2
+1200 2
+6 5400 900 6750 1125
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 5400 900 6750 900 6750 1125 5400 1125 5400 900
+4 0 0 50 -1 0 16 0.0000 4 195 480 5805 1110 read\001
+-6
+6 1350 900 2700 1125
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 1350 900 2700 900 2700 1125 1350 1125 1350 900
+4 0 0 50 -1 0 16 0.0000 4 195 480 1755 1110 read\001
+-6
+6 900 1350 2250 1575
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 900 1350 2250 1350 2250 1575 900 1575 900 1350
+4 0 0 50 -1 0 16 0.0000 4 195 480 1305 1560 read\001
+-6
+6 4950 1350 6300 1575
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 4950 1350 6300 1350 6300 1575 4950 1575 4950 1350
+4 0 0 50 -1 0 16 0.0000 4 195 480 5355 1560 read\001
+-6
+6 900 2700 6750 3420
+6 900 2700 6750 2970
+6 900 2700 2700 2955
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 900 2700 2700 2700 2700 2925 900 2925 900 2700
+4 0 0 50 -1 0 16 0.0000 4 255 705 1470 2895 region\001
+-6
+6 4950 2700 6750 2955
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 4950 2700 6750 2700 6750 2925 4950 2925 4950 2700
+4 0 0 50 -1 0 16 0.0000 4 255 705 5520 2895 region\001
+-6
+-6
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 900 3150 6750 3150 6750 3375 900 3375 900 3150
+4 0 0 50 -1 0 16 0.0000 4 255 2070 2790 3345 compressed region\001
+-6
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 675 1800 6930 1800 6930 2025 675 2025 675 1800
+2 2 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 5
+	 450 450 7155 450 7155 3825 450 3825 450 450
+4 0 0 50 -1 0 16 0.0000 4 195 870 3465 1995 genome\001