[GRASS5] questions about recent d.grid changes

[Michael Barton]

Before I make changes to the d.grid panel in the GIS Manager, I wanted to
run by you a couple of thoughts I mentioned to Hamish below.

What do you think?

(I tried to send this to Bob Covill, but it was bounced)

Michael
______________________________
Michael Barton, Professor of Anthropology
School of Human Evolution and Social Change
Arizona State University
Tempe, AZ  85287-2402
USA

voice: 480-965-6262; fax: 480-965-7671
www: http://www.public.asu.edu/~cmbarton

------ Forwarded Message
> From: Hamish <hamish_nospam at yahoo.com>
> Date: Thu, 20 Oct 2005 23:25:33 +1300
> To: Michael Barton <michael.barton at asu.edu>
> Subject: Re: [GRASS5] d.grid with numbers
> 
>> I've added the -t flag to the gridline.tcl panel and will update it to
>> the cvs soon. 
> 
> ok, thanks. I worry a bit that all the custom menus leave you (or
> someone) with a constant battle to keep up with the changing features.
> ie exactly the same situation as with the old tcltkgrass menus always
> being out of date.  ? Not a problem as long as you are willing to keep
> up with it, but none the less something else to steal your valuable
> time & energy. I offer no solution.... maybe it is just a compromise we
> live with for a nice GUI.
> 
> 
>> I just noticed that d.grid has changed in other ways since I did the
>> panel. It used to have a -g flag if you wanted to turn the grid off,
>> but this seems to have gone away. And now there is gsize and gcolor
>> for geodesic grids.
> 
> ah yes, not my work so I didn't think to mention it.
> 
>  
>> It would be nice to have the -g flag back. Also, wouldn't it be
>> simpler to have a flag to make d.grid switch to geodesic rather than
>> have separate entries for gsize and gcolor?
> 
> You would have to take that up with Bob (probably cc grass5); I'm not
> sure of his reasons for doing it that way. Personally, I only ever use
> the grid so didn't notice it was gone.
> 
> 
>> Currently you can theoretically set both size and gsize. So which will
>> d.grid try to do?
> 
> Yes, if you define both size= and gsize= it will draw both. If only one,
> then only that one.
> 
> 
>> Or better yet, if d.grid can tell whether it's in a latlon region, it
>> could simply automatically switch to geodesic mode without the need
>> for a switch.
> 
> If it is in a lat/lon region it will only draw a regular rectangular
> grid. But in that case a geogrid is the same thing, so it doesn't
> matter. In fact it will give you an error if you try to do a geogrid in
> lat/lon (or XY).
> 
> 
> Hamish

------ End of Forwarded Message

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