[Qgis-user] "on the fly" reprojection options in 2.0

[Jonathan Moules]

Hi Ramon,
Thanks for the clarification.
But given that, shouldn't they be radio buttons, not checkboxes? They
certainly sound mutually exclusive.

Jonathan

On 15 October 2013 15:00, Ramon Andiñach <custard at westnet.com.au> wrote:

> That got me too.
>
> > On 15 Oct 2013, at 21:26, Jonathan Moules <
> jonathanmoules at warwickshire.gov.uk> wrote:
> >
> > Hi List,
> >   Maybe it's just me, but in 2.0 under Settings -> Options -> CRS I have
> two options:
> >
> > "Automatically enable 'on the fly' reprojection if layers have different
> CRS"
>
> This is "don't turn on OTF until you need it."
> So OTF starts off, but will turn on when you load something in a different
> CRS.
>
> > and
> > "Enable 'on the fly' reprojection by default"
>
> This is "just turn OTF on and be done with it already".
>
> So OTF starts on and stays on.
>
>
> > My question - what is the difference between these two? They sound like
> different phrasings of the same thing.
>
> So slightly different rules on how you want OTF to behave.
>
> It might be that you almost exclusively work in one CRS, but occasionally
> use something in another CRS, in which case the first option is good for
> you.
>
> Or you might be somewhere that you will use 2 or three different CRS each
> day so the second is just simpler.
>
> Also, as good as QGIS's OTF is (and I think it's fantastic) there will
> always be a cost to using it, so if you're a speed freak or have big data
> you probably don't want OTF on unless you need it.
>
> I'm sure one of the others will step in if I've got this all wrong.
>
> -ramon.
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