Ah: 

The use-case is that this "applicability" bits are present in the application 
and we don't have a preference page to allow users to change them. The 
"applicability" bits are used to control how the layer is used.

The normal applicability bit is "visible"; and that is the one displayed in the 
layer list.

* The usual GIS use case is to hide a layer (visible = false) but still allow 
"info" tool to select from it (info = "true"). This allows GIS professionals to 
work with information that may be too slow to draw.

* The use case that is interesting me today is the mark "background" layers so 
that they don't take part in the normal tool relationships (hopefully we can 
look into rendering them into tiles or something later). One of the things we 
would like to do with the background layer is use it as a source of "boundary" 
polygons.

We can try and put these thoughts into the page; Paul asked me to check it over 
before people showed up today and I am afraid I was too slow (sorry Paul)
-- 
Jody Garnett


On Thursday, 13 October 2011 at 6:32 PM, andrea antonello wrote:

> Hi Paul,
> I am afraid I do not understand entierly what this is all here for.
> 
> On the RFC there is no example usecase. Would you be willing to make a
> couple of examples?
> 
> Would that mean that we can make layers not editable? Would that
> change the default behaviour we had up to now?
> 
> 
> As Jody states in an email following this thread, we could check and
> set layer properties. What would be the use of setting for example a
> Raster layer editable? Or even selectable?
> 
> Can you expand a bit on this?
> 
> Thanks,
> Andrea
> 
> 
> 
> On Thu, Oct 13, 2011 at 8:07 AM, Paul Pfeiffer <[email protected] 
> (mailto:[email protected])> wrote:
> > I have added the following RFC
> > 
> > http://udig.refractions.net/confluence/display/UDIG/Layer+Preference+Page
> > 
> > _______________________________________________
> > User-friendly Desktop Internet GIS (uDig)
> > http://udig.refractions.net
> > http://lists.refractions.net/mailman/listinfo/udig-devel
> _______________________________________________
> User-friendly Desktop Internet GIS (uDig)
> http://udig.refractions.net
> http://lists.refractions.net/mailman/listinfo/udig-devel

_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel

Reply via email to