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From "Martin Desruisseaux (JIRA)" <>
Subject [jira] [Updated] (SIS-223) Orthographic projection
Date Fri, 17 Jul 2015 14:27:04 GMT


Martin Desruisseaux updated SIS-223:
    Summary: Orthographic projection  (was: Orthographic)

> Orthographic projection
> -----------------------
>                 Key: SIS-223
>                 URL:
>             Project: Spatial Information Systems
>          Issue Type: Sub-task
>          Components: Referencing
>            Reporter: Martin Desruisseaux
>            Priority: Minor
> The orthographic projection has no EPSG code, but is described in John P. Snyder (Map
Projections - A Working Manual, U.S. Geological Survey Professional Paper 1395, 1987).
> An {{Orthographic}} file is available on Geotk, but can not be ported as-is in SIS for
licensing reason, except the projection derivative formulas and the work on (de)normalization
matrices. The other formulas need to be retraced from the book. However this map projection
is relatively simple, so this task is presumed easy.

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