Am 27.11.2013 20:12, schrieb Alex Mandel:
On 11/27/2013 10:56 AM, Randal Hale wrote:
So this question was going to be epic and confusing - and I just figured
it out. I also Cross posted this to the developers list - so excuse the
duplication.
I have a user who sent me data in Georgia West State Plane NAD83 Feet.
In QGIS this comes up as a custom projection so I decided to define it.
According to QGIS I ended up with two EPSG choices - EPSG 102667 and
EPSG 2240. So this lead to some back and forth on my part mostly because
I was working tired. I searched the EPSG database and there is no
102667. This led to some head banging on my part.
I searched http://spatialreference.org/ref/?search=Georgia+West+ and
102667 is defined as an ESRI projection. Except in QGIS it comes up as
EPSG. Can this be fixed - can it be referenced as ESRI as opposed to EPSG?
I think that's a minor semantics issue, it's common knowledge that EPSG
code's over 10,000 are not actually official EPSG. But I'm not sure that
the label is stored in the db. Will have to look into that. More a
request to the developers list than here. And then of course I wonder if
we'll get in trouble for using the term ESRI without a trademark note.
Technically yes those projections come from the ESRI definitions, but
I'd guess that someone outside ESRI actually converted them to proj strings.
We also have IGNF: projection definitions, so why not giving ESRI the
appropriate reference? They did not invent them, just gave the number.
Referencing to EPSG for projections that they did not publish is not
better either.
I guess it comes from GDAL or PROJ4 after all. They have tables called
ESRI with the extra definitions.
Greetings,
André Joost
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