Awesome - OK - I didn't know project on the fly would assign a
projection. I usually leave it off - All the data needs to be in one
projection anyway.
I should have known about the EPSG thing - I was too wrapped up in the
data. I think having it as something other than EPSG would be better and
probably would help some - but you are right the name ESRI would most
likely kick up a stink of some sort.
I appreciate it.
Randy
-----------------
Randal Hale, GISP
North River Geographic Systems, Inc
http://www.northrivergeographic.com
423.653.3611 rjh...@northrivergeographic.com
<mailto:rjh...@northrivergeographic.com>
twitter:rjhale
http://about.me/rjhale
On 11/27/2013 02:12 PM, Alex Mandel wrote:
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.
Also - it seems when I pull data without a projection it inherits EPSG
4326 (WGS84) - is there a way in QGIS to pull in data with no
projection? In some cases we have to figure it out - so it coming in as
undefined is more helpful than inheriting an incorrect projection.
Just leave Projection on the fly off (the default). That will give you
the behavior of a naive coordinate system and a chance to figure out and
define the correct coordinate system.
Anyway - Happy Thanksgiving for those of you who fall in that geographic
social area.
Randy
Thanks,
Alex
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