[gdal-dev] A problem with Alaska State Plane Zone 1 and ogr2ogr

[Jay Cable]

Hello,

Please forgive me if this is the wrong place for this question, but  I am
trying to use Alaska State Plane Zone 1 with ogr2ogr, and can't seem to get
it to project the data correctly.  I am probably doing something wrong, but
can't seem to figure it out.   I am pretty sure that my projection string
is correct, as the results from proj match what the NGS's online calculator
gives.

When I use ogr2ogr like this:
ogr2ogr -t_srs "+proj=omerc +lat_0=57 +lonc=-133.6666666666667
+alpha=-36.86989764583333 +k=0.9999 +x_0=5000000 +y_0=-5000000 +no_uoff
+datum=NAD83 +units=m +no_defs" akzone1.zhp point.84.shp

On a shapefile with a single point  - POINT (-131.811033901222117
55.409950489560302)

I get:
POINT (4988757.639998742379248 -5210867.590697132050991)

What I get from a shape file reprojected with ESRI products is:
POINT (936203.399999997578561 399658.200000001117587)

I believe the ESRI result is correct, as it matches the the NGA online
converter.

Proj also generates the correct value:
Jays-MacBook-Air-2:zone1 Jay$ proj +proj=omerc +lat_0=57
+lonc=-133.6666666666667 +alpha=-36.86989764583333 +k=0.9999 +x_0=5000000
+y_0=-5000000 +no_uoff +datum=NAD83 +units=m +no_defs
-131.811033901222117 55.409950489560302
936203.40    399658.20


So, my question is what am I missing to make the results from ogr2ogr match
up with proj?

My thanks,
 -Jay Cable

Jays-MacBook-Air-2:zone1 Jay$ proj
Rel. 4.8.0, 6 March 2012
usage: proj [ -beEfiIlormsStTvVwW [args] ] [ +opts[=arg] ] [ files ]

Jays-MacBook-Air-2:zone1 Jay$ ogr2ogr --version
GDAL 1.11.0, released 2014/04/16


Oh,  the online NGS converter I mentioned:
http://www.ngs.noaa.gov/cgi-bin/spc_getpc.prl

 =======================================================
           Latitude           Longitude      Datum Zone
 INPUT =   N552435.8217       W1314839.7220  NAD83 5001
 =======================================================

  NORTH(Y)    EAST(X)     AREA  CONVERGENCE   SCALE
  METERS      METERS            DD MM SS.ss
  ----------- ----------- ----  -----------   ----------
  399658.198  936203.401  AK 1   1 32 38.22   0.99990159














- Jay Cable - jay at alaska.edu - (907)474-1856 -
- Geographic Information Network of Alaska -  University of Alaska  -
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