[Proj] Conversion help

Eric Miller EMiller at dfg.ca.gov
Thu Sep 3 14:14:38 PDT 2009


Same results that you think are incorrect:

$> proj -I +init=nad83:4302 +units=us-ft
1473458.118 7276845.408
112d5'54.835"W  40d17'43.039"N

It's possible the definition for the state plane zone is incorrect in the nad83 file.

>>> On 9/3/2009 at 12:17 PM, ` ` <teletautala at hotmail.com> wrote:

> 
> 
> 
> 
> 
> 
> I need to convert waypoints from State Plane, NAD 83 4302 - Utah Central, 
> U.S. Feet to Geographic, NAD 83.  Here is some data:
> original data: 
>     7276845.40800,1473458.11800
> nad2nad conversion (nad2nad -i spcs=4302,rev,83,feet -o 83,rev -w7 
> reversedConversion.txt | head -1):
>     40d8'56.1498803"N    117d22'21.7731358"W,1473458.11800
> data converted with corpscon:
>     40 17 43.03866,112 05 54.83550
> 
> the longitude needs to be negative, but other than that the coordinates are 
> fine from corpscon.  What am I doing wrong and how can I fix this?
> 
> -Daniel
> 
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