I was seeking to transform my NAD83 vector data into NAD27 using the
documented instructions at
http://docs.geoserver.org/stable/en/user/configuration/crshandling/coordtran
sforms.html and the link to the NADCON program posted will no longer provide
the files needed by Geoserver to perform this operation. They've changed
their software and they've changed their underlying data. From the email
that I received when checking into this issue with NGS:
"With NADCON 5.0 we moved from the *.las and *.los format to the *.b
format."
"In the NADCON 5.0 report, Chapter 10 (starts on page 213), we provide
detail on the formats of the historic and new NADCON grids:
https://www.ngs.noaa.gov/library/pdfs/NOAA_TR_NOS_NGS_0063.pdf";
-- Andria
I've searched the mailing list for this solution and I may have missed one
if it exists. So my first question is whether this situation has already
been resolved. Did I simply not see it?
If not, I am willing to "Earn my Support" and go through the process of
converting *.b files into *.las and *.los files so that they can seamlessly
be dropped into place in the user_projections directory. I will document my
steps and submit them so that perhaps they can help others. My second
question is whether you consider this a sound approach or whether you'd
advise a different one.
I understand that Geoserver is trying to make a solution that fits all the
world's geodata and that when given 3rd party agencies in any given country
shift their files and formats, it's difficult to stay on top of it. This is
why I'm offering to help with NADCON. But it's going to require a lot of
research and work to be able to make the square peg fit into the round hole
and that's why I'm starting off with Question One: "Has this situation
already been resolved?"
Thank you,
Erik
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