Hi,
Am 19.07.19 um 23:47 schrieb Nyall Dawson:
On Fri, 19 Jul 2019 at 23:15, Andreas Neumann <a.neum...@carto.net> wrote:
Hi Nyall and others,
I was wrong, there is no difference in behaviour between proj493 and proj520.
Nor is there a difference between Linux and Windows.
We, as a user, made the mistake of creating test data in a new empty layer at
around (0,0) and my colleague in a totally different area in the coordinate
system in an area that isn't valid for the EPSG:2056 projection. The EPSG:2056
projection only works reasonably well in the bound of approx. 2485000 1075000
2828500 13000000
Glad I'm not the only one who has made this mistake!!
;-) I felt so embarrassed that it took me quite long to find out about
my/our mistake.
I wonder if it would make sense to issue a warning if a user creates data
outside of the valid bounds of a projection? It would definitely make sense for
stupid people like myself ...
This sounds like a good idea to me. When would you propose that we
raise the warning? Possibly on saving edits to a layer?
Yes - on saving a layer it it would make sense to check against the
valid boundaries of a projection (if we have this information
available). Probably not during editing. I think it should not prevent
saving, if someone wants to that, but a warning in the messagebar would
be useful to have, or perhaps even with a yes/no question - do you
really want to save? Do you know what you are doing?
Thanks,
Andreas
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