On Thu, Jun 21, 2018 at 6:06 AM, Valley GIS Limited <
[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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