[GRASSLIST:4133] RE: state plane - newbie
Richard Greenwood
Rich at GreenwoodMap.com
Tue Jul 23 13:26:02 EDT 2002
At 12:00 PM 7/23/2002 -0400, you wrote:
>What do you mean by "off"?
I am entering state plane coordinates for a new location. The coordinates
generally correspond to a 2 degree x 2 degree rectangle: 110W to 112W and
43N to 45N. However g.region.sh -l shows approximately 102W to 104W and 44N
to 46N.
>Try g.projinfo if you want to check the projection
>information.
g.projinfo seems to show the correct lat & lon, however I don't see the
false easting & northing (probably I'm just not reading it correctly).
>Note: At one time there was a bug such that requesting
>NAD83 used NAD27 parameters unless you manually copied
>state83 file to state27 (and saved backup of state27).
That actually looks like a possibility because they did stick some very
large shifts in the false easting & northing between NAD27 and NAD83.
Another potential stumbling block is that I am working in feet, rather than
meters.
Thanks for the help, I'll keep digging.
I'm new to this list - what's the protocol with a dialog such as this;
should I reply to the list, the individual, or both?
Rich
Richard W. Greenwood, PLS
Greenwood Mapping, Inc.
Rich at GreenwoodMap.com
(307) 733-0203
http://www.GreenwoodMap.com
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