[GRASS5] warning when wrong region settings

[Eric G. Miller]

On Mon, Mar 05, 2001 at 10:51:55AM +0100, mlennert at club.worldonline.be wrote:
> Hello,
> 
> I ran the cell driver and forgot to set the region back to default after that. 
> When trying to display a vector map d.vect just runs without any error 
> message, but nothing is displayed. I finally realized the problem when trying 
> to display a raster map and receiving error messages. Shouldn't there be the 
> same kind of error message for vector and site maps ?

Mostly there's the idea that an entire GRASS location would be in one
projection, so routines often don't check that the projection in the
region setting matches the projection defined for the spatial layer.  In
the case of sites, it's not really possible with the current format.
There's a possible heuristic for lat/lon vs. other projections based on
the way lat/lon is stored.  But other than that...  Seems like it would
be nicer if we didn't have to change the region settings to convert
D_cell to some regular graphics file format.  Perhaps the PNGdriver does
this, I haven't tested it...

-- 
Eric G. Miller <egm2 at jps.net>

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