Hi Andria,
I do have moderate Java Dev skills. I’ll need instructions on how to
configure my NetBeans to pull off the repo, etc. I’m sure there’s a number of
web pages that’ll detail that for me, I’ll do a search. I would like to use
whichever reader is being used currently for the NADCON grid transform (*.las
and *.los) as a basis to model my solution off of.
Meanwhile, I’m going to print out the NADCON document so I can start puzzling
out the format of the data files or I won’t be able to put together a very
effective reader. I’ll grunt through the process a couple of times manually
before I even think to start writing code.
I’ll look on geo-solutions.it web site to see about pricing for having expert
Java Devs put together a solution. It is an additional option that I hadn’t
considered.
Thank You,
Erik
From: [email protected] [mailto:[email protected]] On Behalf Of Andrea
Aime
Sent: Thursday, June 21, 2018 2:00 AM
To: Valley GIS Limited <[email protected]>
Cc: GeoServer Mailing List List <[email protected]>
Subject: Re: [Geoserver-users] NADCON grid shift transforms - data file formats
have changed
On Thu, Jun 21, 2018 at 6:06 AM, Valley GIS Limited
<[email protected] <mailto:[email protected]> > wrote:
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/coordtransforms.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?
You're not missing anything, we don't have a reader to handle this new ".b"
format. It's the first time I hear about 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.
The best option would be to write a reader for that new format, but it's going
to either require funds or, if you have java dev skills, your time.
A documented conversion approach is the second best option of course.
Cheers
Andrea
==
GeoServer Professional Services from the experts! Visit http://goo.gl/it488V
for more information. == Ing. Andrea Aime @geowolf Technical Lead GeoSolutions
S.A.S. Via di Montramito 3/A 55054 Massarosa (LU) phone: +39 0584 962313 fax:
+39 0584 1660272 mob: +39 339 8844549 http://www.geo-solutions.it
http://twitter.com/geosolutions_it
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