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https://issues.apache.org/jira/browse/SIS-223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Martin Desruisseaux updated SIS-223:
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Summary: Orthographic (EPSG:9840) (was: Vertical Perspective, orthographic
case (EPSG:9839))
> Orthographic (EPSG:9840)
> ------------------------
>
> Key: SIS-223
> URL: https://issues.apache.org/jira/browse/SIS-223
> Project: Spatial Information Systems
> Issue Type: Sub-task
> Components: Referencing
> Reporter: Martin Desruisseaux
> Priority: Minor
>
> The orthographic case is a vertical perspective with the viewing point at
> infinity.
> An {{Orthographic}} file is available on Geotk, but can not be ported as-is
> in SIS for licensing reason, except the conversion derivative formulas and
> the work on (de)normalization matrices. However this map conversion is
> relatively simple, so we can restart from the formulas given in the EPSG
> guide.
> See §1.3.17.3 in IOGP Publication 373-7-2 – Geomatics Guidance Note number 7,
> part 2 – April 2015.
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