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

[Radim Blazek]

On Tue, Oct 15, 2013 at 5:06 PM, Jonathan Moules
<jonathanmoules at warwickshire.gov.uk> wrote:
> Hi Ramon,
> Thanks for the clarification.
> But given that, shouldn't they be radio buttons, not checkboxes? They
> certainly sound mutually exclusive.

Yes, I fixed that in master.

Radim

> 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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>
>
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