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-rw-r--r--nad/README3
1 files changed, 3 insertions, 0 deletions
diff --git a/nad/README b/nad/README
index 68781066..8a22721e 100644
--- a/nad/README
+++ b/nad/README
@@ -30,6 +30,8 @@ world --- Proj specifications for several international grid systems.
nad.lst --- Reference list of SPCS States and NGS datum identifiers
+IGNF --- Translation of French Mapping Agency codes into PROJ.4 via init= mechanism.
+
nad2bin.c --- C program to convert above ASCII files into binary
files usable by program nad2nad. Compiled and used in
install script only.
@@ -67,3 +69,4 @@ WO.lla.Z --- Washington, Oregon, N. California
Other grid shift files
ntv1_can.dat --- Canadian NTv1 grid shift file (NAD27-->NAD83)
+ntf_r93.gsb --- French NTv2 grid shift file (NTF-->RGF93)