[Proj] Conversion help

` ` teletautala at hotmail.com
Tue Sep 8 16:04:24 PDT 2009


I believe if I use "proj -I +init=nad83:4302 +units=us-ft" with the input file it should work.  I have tested the conversions against the corpscon program and they work.  Thank you for your help.

-Daniel 

> From: ovv at hetnet.nl
> To: proj at lists.maptools.org
> Date: Sat, 5 Sep 2009 11:06:32 +0200
> Subject: Re: [Proj] Conversion help
> 
> ----- Original Message ----- 
> From: "` `" <teletautala at hotmail.com>
> To: <proj at lists.maptools.org>
> Sent: Thursday, September 03, 2009 9:17 PM
> Subject: [Proj] Conversion help
> 
> 
> 
> 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
> 
> 
> 
> Reply:
> 
> I think I've got part of the solution.
> Somehow your x was interpreted as zero.
> If you convert x = 0; y = 7276845.40800; to LCC without further grid 
> interpolation, then you'll get
> lat = 40d 08m 56.14988s, lon = -117d 22m 21.77314s
> The Corpscon values are correct for SPCS 4302 and x = 1473458.11800; y = 
> 7276845.40800;, also without grid interpolation.
> 
> Oscar van Vlijmen
> 
> 
> 
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