[Proj] Proj 4.9.1RC3 Released

[Hermann Peifer]

On 2015-02-21 18:31, Howard Butler wrote:
> All,
>
> Proj4 4.9.1RC3 is now released for testing. Should no significant issues be identified, ...
(...)
>>
>>   o Regenerate nad/epsg with GDAL r28536 to avoid precision loss in TOWGS84
>>     parameters, e.g. on Amersfoort / RD EPSG:4289 (#260)

No sure if this is significant, but instead of a precision loss for 
TOWGS84's X,Y,Z-offsets, there is now a "precision gain" for the 
rotation values in several cases, e.g. for the mentioned Amersfoort / RD 
EPSG:4289. I wonder if this is as it should be.

Hermann

$ diff -u  proj/nad/epsg proj-4.9.1/nad/epsg | grep -C4 "<4289>"
@@ -433,7 +433,7 @@
  # Loma Quintana
  <4288> +proj=longlat +ellps=intl +no_defs  <>
  # Amersfoort
-<4289> +proj=longlat +ellps=bessel 
+towgs84=565.417,50.3319,465.552,-0.398957,0.343988,-1.8774,4.0725 
+no_defs  <>
+<4289> +proj=longlat +ellps=bessel 
+towgs84=565.4171,50.3319,465.5524,-0.398957388243134,0.343987817378283,-1.87740163998045,4.0725 
+no_defs  <>
  # SAD69
...