azavea/geotrellis — pull request #59 by joshmarcus (2012-04-03 19:52:56+00:00)
Title: Update ARG binary format.

The old ARG binary format stored rows starting from (map coordinate) ymin and increased to ymax, which is the opposite order of rows as displayed on the screen. The new format starts at ymax and finishes at ymin, which reflects the order of the rows as displayed on the screen.

See https://github.com/azavea/geotrellis/wiki/ARG-Specification for more information.