Index: trunk/Ohana/src/libdvo/doc/dvo-images.txt
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--- trunk/Ohana/src/libdvo/doc/dvo-images.txt	(revision 15240)
+++ trunk/Ohana/src/libdvo/doc/dvo-images.txt	(revision 15240)
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+
+the dvo image table is not extremely efficient.  it is unsorted, and
+spatial searches consist of complete scans of the table.
+
+a spatial index could consist of five cardinal points for each square
+image (4 corners and the center) or a central point and max radius.
+table would consist each would be