On Fri, 20 May 2011, Bryan Keith wrote:
I've done this many times, and you really just have to guess. It helps to
know what units your coordinates are in to narrow down your choices.
Often you can figure that out if you have a general idea of how far away a
couple of your points are. Then you guess it has to be feet or meters.
Bryan/Johannes,
I think I know what they might be; I'll be checking this afternoon and
will post the results later.
The shapefiles from the project are projected in Transverse Mercator/NAD27
so these might be feet in the tmerc projection rather than in state plane.
I'm importing the maps I have now and will create a sites/points file with
these locations and see if they properly overlap.
Since some of the data files were corrupted when sent to me I did not look
at them until I received a replacement disk with the missing files. Now I'm
importing them into GRASS and that's why I know the projection of the maps.
Rich
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