On 13/12/2014, at 14:02 , Martin Dobias wrote:

> Hi
> 
> Recently I have been working on some snapping improvements (more about that 
> later) and I have found one slightly surprising thing about the configuration 
> of tolerances: if the tolerance unit is set to "map units", it actually means 
> "layer units" - i.e. units in layer's CRS and not in project's CRS. Recently 
> there was even a bug report filed for that: https://hub.qgis.org/issues/11634
> 
> I would like to change the behavior so that the "map units" in snapping 
> config dialog would mean units in project's CRS. Would there be any 
> objections?
> 
> Alternatively we could just rename "map units" to "layer units" to make it 
> less surprising (and eventually add a third option to use project's units).

Hi,

This explains many things, and probably a lot about why I've learnt not to 
entirely trust map unit snapping.

As someone that routinely works with layers in about 3 projections at the same 
time, could we have both "layer units" and "map units"?

-ramon.

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