[Proj] Info on proj4 formulas

[Finn, Michael]

Thanks for posting this!



On Fri, May 9, 2014 at 8:31 AM, Nick Ves <vesnikos at gmail.com> wrote:

> Intresting,
>
> But now I'm wondering if the OGP's "Geomatics Guidance Note Number 7,
> part 2 Coordinate Conversions and Transformations including Formulas"
> [0] has been taken into account in the realizations of the formulas.
>
> [0] http://www.ogp.org.uk/pubs/373-07-2.pdf
>
> On Fri, May 9, 2014 at 5:19 PM, Norman Vine <nhv at cape.com> wrote:
> >
> > On May 9, 2014, at 10:05 AM, Andrea Peri <aperi2007 at gmail.com> wrote:
> >
> > Hi,
> > You have right.
> > I can read and try to understand the code but i don't know the PROJ lib.
> > There is a specific file source dedicate to the reprojection functions ?
> >
> >
> >
> > Each projection has its own file these are named  "PJ_XXXX"
> > where XXXX is an abbreviation of the projection's name
> >
> > Proj4 is the codification of Snyder's "Map Projections: A Working Manual"
> > Where the derivation of the projections are discussed
> > this is available as a pdf from
> > http://pubs.er.usgs.gov/publication/pp1395
> >
> >
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