#######################################################################
#
# Copyright (c) 2008, Autodesk, Inc.
# All rights reserved.
#
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# modification, are permitted provided that the following conditions are met:
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#       contributors may be used to endorse or promote products derived
#       from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY Autodesk, Inc. ``AS IS'' AND ANY
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########################################################################
#
# Each line of real data points to a datum shift data file.
# In the case of overlapping coverage, the program selects the
# data file with the smallest grid cell in the region of the
# conversion.  If the grid cell sizes are the same, the program
# selects the file which appears first in this file.
#
# Order the list of files as appropriate for your application.
# You can add additional files as they become available.  While
# the name, letter case, and location of the file name is not
# important, the extension must be ".gsb" if the file is in
# the Canadian National Transformation, Version 2 format.  Each
# line may be a full path name.  The ".\" sequence used here is
# a relative folder/directory reference, relative to the folder
# (directory) in which this file resides.
#
# For this particular file only, a special entry is supported.
# Including a reference to the Ats77ToCsrs.gdc file indicates
# to the coordinate conversion system that you want the
# compound shift of NAD27 -> ATS77 -> CSRS to be considered.
# in the case immediately below (which is commented out as
# we are not allowed to distribute the necessary data files)
# we indicate that the Maritime Province algotithm of
# converting NAD27 to ATS77, and then to CSRS is to be
# considered first.  This is because we specify an
# arbitrailiy small grid cell size (0.5) and we list
# it first in the list of files to be considered. This
# is probably what users in the Maritime Provinces of
# Canada would want to use.  Users in other areas of
# Canada would probably want to leave the reference to the
# Ats77ToCsrs.gdc commented out.
#
#.\Ats77ToCsrs.gdc,,,0.5
#.\Canada\SK27-98.gsb,,,5 # Saskatchewan
#
# The fallback datum definition is used when none of the above
# listed files provides coverage for the point to be converted.
# The specification given below (in the distribution data anyway),
# says to use the NAD27 definition in this case.  This
# definition is a US DMA Multiple Regression formula for NAD27
# valid for Canada.  Of course, you
# can change this to whatever datum definition you prefer.
#
Fallback=NAD27-CAN