Geometry Boost List: Re: [geometry] ISEA projection inverse transformation

From: Majid Hojati (asd56yu_at_[hidden])
Date: 2019-12-09 15:48:44

Hi Adam,
Thanks so much for your reply.
I'll take a look at them
With the best,
Majid Hojati

On Sun, Dec 8, 2019 at 10:20 PM Adam Wulkiewicz via Geometry <
geometry_at_[hidden]> wrote:

> W dniu 08.12.2019 o 21:39, Majid Hojati pisze:
> > Thanks for your email, actually I have asked them and they said it is
> > just forward transformation. How can I implement it? Do you know any
> > kind of documentations or papers for that?
> At the proj website
> https://proj.org/operations/projections/isea.html
> the original paper is listed:
> https://www.tandfonline.com/doi/abs/10.1559/152304088783886784
> but it's behind the paywall so I don't know if the inverse projection is
> described there or is it even possible.
>
> A quick search reveals also that someone already tried to implement the
> inverse projection in 2017 but had problems with it:
>
> http://osgeo-org.1560.x6.nabble.com/Inverse-Icosahedral-Snyder-Equal-Area-ISEA-Projection-td5345223.html
> The student mentions that the inverse projection is described in the
> paper on page 14.
>
> Adam
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