[GRASS-dev] Scale display in GRASS Monitor

[Antonello Andrea]

> Given all these problems, I wonder how
> - qgis
> - udig
> - ESRI
> - Mapserver
> - ...
> 
> are displaying the scale? All fooling the user? GRASS is probably the
> only GIS in the world not displaying a scale (how does d.barscale work?).

I didn't follow the whole discussion, so I hope I'm answering to what
was asked...

I can only tell about JGrass. We have a scalebar and yes, if you want to
see it like that, somehow we are fooling the user, even if of a very small 
amount (I never needed it precise on the monitor). Since we retrieve the 
resolution from the drivers, We are exposed to the problems listed above.

But I don't really mind about measuring the screen with a ruler, the important 
to me is to get the proper result when I print the map.
And on paper the scale I see on the screen is returned to me with a millimetric
precision which that is what I need.

Regards,
Andrea