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-rw-r--r--nad/BETA2007.gsbbin0 -> 83696 bytes
-rw-r--r--nad/README4
-rw-r--r--src/pj_datums.c3
3 files changed, 6 insertions, 1 deletions
diff --git a/nad/BETA2007.gsb b/nad/BETA2007.gsb
new file mode 100644
index 00000000..69cd3346
--- /dev/null
+++ b/nad/BETA2007.gsb
Binary files differ
diff --git a/nad/README b/nad/README
index 884cedda..4ed6b192 100644
--- a/nad/README
+++ b/nad/README
@@ -70,3 +70,7 @@ 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)
+BETA2007.gsb --- German NTv2 grid shift file (DE_DHDN-->ETRS89) :
+ http://crs.bkg.bund.de/crseu/crs/descrtrans/BeTA/de_dhdn2etrs_beta.php
+ Confirmed with Uwe Schmitz <uwe.schmitz@bezreg-koeln.nrw.de> that free
+ redistribution is allowed and welcome.
diff --git a/src/pj_datums.c b/src/pj_datums.c
index 48c77c69..f084f9cc 100644
--- a/src/pj_datums.c
+++ b/src/pj_datums.c
@@ -47,7 +47,8 @@ C_NAMESPACE_VAR const struct PJ_DATUMS pj_datums[] = {
{"NAD27", "nadgrids=@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat",
"clrk66",
"North_American_Datum_1927"},
-{"potsdam", "towgs84=598.1,73.7,418.2,0.202,0.045,-2.455,6.7",
+{"potsdam", /*"towgs84=598.1,73.7,418.2,0.202,0.045,-2.455,6.7",*/
+ "nadgrids=@BETA2007.gsb",
"bessel",
"Potsdam Rauenberg 1950 DHDN"},
{"carthage","towgs84=-263.0,6.0,431.0", "clrk80ign",