[Proj] stere/sterea and Polish "System 65" (epsg:2174)
werchowyna at pf.pl
Thu Mar 3 17:03:50 EST 2005
From: "Frank Warmerdam" <fwarmerdam at gmail.com>
Sent: Wednesday, March 02, 2005 10:57 PM
Subject: Re: [Proj] stere/sterea and Polish "System 65" (epsg:2174)
> On Wed, 2 Mar 2005 22:36:24 +0100, Maciek Sieczka <werchowyna at pf.pl>
>> Issues arise:
>> 1. Wouldn't it be good to replace the "stere" epsg 2171-2174 with
>> in the epsg and esri PROJ4 definitions?
>> 2. It would also make sense to change their descriptions into what it
>> be - "System 1965" ("Uklad 1965" in Polish). "Pulkovo 42" is wrong and
>> missleading as in Poland we have another, different grid called "System
> These definitions are automatically derived from the EPSG tables, and
> I am not convinced that replacing stere with sterea would necessarily
> match better in all cases.
I don't mean all cases. I'm only quite sure about epsg 2171-2174, which are
the four zones of Polish "System 65".
> Does EPSG use different projection
> methods codes for different kinds of stere? If not it may be hard to
> know where to apply what.
I wouldn't know too.
> I would add that similar issues apply for the description.
> However, if the EPSG derived definitions are bad enough, and
> you can't reasonably fix things upstream, then you can submit
> updated definitions for the coordinate systems in Bugzilla and
> I will apply them.
I'll test the "sterea" more in next few days and will make a Bugzilla report
if all is ok.
> I *think* I have a way of managing "overrides" for the
> autogenerated epsg file.
> Hmm, now that I look around, I don't know how I do this.
> Perhaps I never did implement an override mechanism in
> the generation code.
> Best regards,
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