missing projection alert

[Bernhard Reiter]

On Thu, Jan 20, 2005 at 12:12:20AM +0100, Bernhard Reiter wrote:
> On Tue, Dec 28, 2004 at 03:25:09PM -0500, Russell Nelson wrote:
> > I have more confidence that the second patch (mainwindow.py) is
> > correct.  If you have a layer whose LatLonBoundingBox returns values
> > which are not legitimate latitude or longitudes, the status bar gets a
> > message asking you to correct the projection.  If you load a UTM map,
> > you'll get this message.
> 
> Finally could check this patch out.
> 
> Please commit, it seems fine overall.
> One one question:
> Could left=-180 be a valid value?
> Maybe we should use <= and >= instead of < and > in the comparision.

The more I think about it, I think it should indeep allow equality.

Two more thoughts:
	As my test layer was your test.jpg called test,
	I think that added double quotation marks in the string 
	could be a tiny improvements. I did read 
		Select Layer test and ...
	And I thought, uh that is a nice menu function. ;)

	Do we actually want to allow working on unprojected layers?
	It might be that it breaks other assumtions within Thuban 
	for the lat-long boundaries.
	If we have a clear no here, then we could throw an exception
	when setting the layer and have other code handle giving out
	a message.

Anyway:
Russel feel free to commit.
Let me know if you want me do it, if you don't have time.
	
	Bernhard R.
		
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