Eric, et. al.

Should I also assume that I can create a state plane, nad27, meters by
adding 
TMMISOCM,tranmerc,1.0 ,20925832.16 ,0.0822718542249391,294.9786982 ,1 
to the project.dat file?

So far, I have the following in tranmerc.dat:

TMMISOCF,0.0 ,500000.0 ,0.999933333 ,-1.614429558094754 ,0.625409648049525
,20925832.16 ,0.0822718542249391,294.9786982 ,1
TMMISOCM83,0,500000,0.999933333,-1.614429558,0.625409648,20925391.87,0.08181
9191,298.2572221,1,

and the following in project.dat:

TMMISOCF,tranmerc,0.30480061 ,20925832.16 ,0.0822718542249391,294.9786982 ,1

TMMISOCF83,tranmerc,0.30480061 ,20925391.87 ,0.0818191910429546,298.2572221
,1 
TMMISOCM,tranmerc,1.0 ,20925832.16 ,0.0822718542249391,294.9786982 ,1 
TMMISOCM83,tranmerc,1.0 ,20925391.87 ,0.0818191910429546,298.2572221 ,1

It appears to me that I'm missing something . . . but I'm not quite sure how
to fix it.  Is this complete?  Or might there be something else to
add/ammend?

Thanks for the help,
Scott



-----Original Message-----
From: Eric Augenstein [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 28, 2001 8:00 PM
To: [EMAIL PROTECTED]
Subject: Re: reprojection



>Scott -

>When I try to use the map-to-map reprojection, I get am error: "There
>currently is no mapping between the input coordinate system and the output
>coordinate system.  Please try selecting another output datum and/or
>projection.

There is no projection defined for Missouri Central NAD83 meters, only
one for feet.  To add this to ER Mapper's projection database:

1) Close ER Mapper.
2) Add this line to the tranmerc.dat file in ER Mapper's
   GDT_DATA directory:

TMMISOCM83,0,500000,0.999933333,-1.614429558,0.625409648,20925391.87,0.08181
9191,298.2572221,1,

3) Add this line to project.dat (also in GDT_DATA):

TMMISOCM83,tranmerc,1.0 ,20925391.87 ,0.0818191910429546,298.2572221 ,1

4) Restart ER Mapper, assign that new projection to your
    dataset (using the Dataset Header Editor), then run
    the reprojection to UTM15.

Regards,



Eric Augenstein
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