[PROJ] Adding new projection to Proj4

[Alessandro Burini]

Dear Jeff,

I confirm Martin's interpretation. The Ground Track Oblique Cassini is a new projection method which we would like to have it included in proj4, as done for the landsat projection (https://proj.org/operations/projections/lsat.html). Is this something that can be done?

Alessandro


Sent from my Samsung Galaxy smartphone.



-------- Original message --------
From: Jeff McKenna <jmckenna at gatewaygeomatics.com>
Date: 16/02/2020 15:50 (GMT+01:00)
To: proj at lists.osgeo.org
Subject: Re: [PROJ] Adding new projection to Proj4

ok thanks for clarifying Martin.  -jeff



On 2020-02-16 9:52 a.m., Martin Desruisseaux wrote:
> I think Alessandro was proposing to add a new "projection method" (i.e.
> another set of mathematical formulas for doing the projection). This is
> a different work than assigning an EPSG code, which is more about
> setting parameter values to use with pre-existing formulas. If this is
> the case, then Alessandro's proposal and EPSG change request would be
> orthogonal tasks.
>
>      Martin
>
> Le 16/02/2020 à 13:41, Jeff McKenna a écrit :
>
>> Hi Alessandro,
>>
>> A new projection can be added into the EPSG registry by filing a
>> change request at: http://www.epsg.org/EPSGDataset/Makechangerequest.aspx
>>
>> I have went through that process several times now, to add a new
>> projection into EPSG, that is then automatically leveraged by software
>> projects, such as PROJ.  Of course it takes time, first for the EPSG
>> committee to review your request, and then also for the new projection
>> to propagate to all software projects.
>>
>> -jeff
>
>
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--
Jeff McKenna
MapServer Consulting and Training Services
https://gatewaygeomatics.com/
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