[GRASSLIST:380] Legends

[Soil & Water Lab.]

Hello,

I have several questions, all related to legends.

* What's the status of 'legend' in NVIZ ? Any implementation yet ?

* When displaying the legend of a CELL map, *all* the categories are 
displayed, when in fact, one would be interested only in the categories 
really displayed.  Actually, it's worse: if your categories are not 
continuous (eg 10,11,12,27), the legend reports *all* the categories from the 
smallest to the largest, when one would expect only the categories defined 
(in the previous example, I have 18 labels in my legend, when I only need 4).

Is there an easy work around ? I thought about reclassifying the map to get 
successive categories, but of course, I lose my colors.
Do you think this could be implemented for a next version ? (Maybe by adding 
another option to d.legend, like "display only the categories listed in the 
first column of the 'colr/map file' )".

* Now, the opposite problem:
 Is there a way to force GRASS to display a legend based on a given color 
table, even if some categories are missing ?
For example, I have a FCELL map with values in the range 0-1000. The legend 
starts at the lowest category (say, 127) and ends at the largest (say, 851), 
when in fact, I expect a display from 0 to 1000.
Here again, any work around ? (apart forcing one of the cells to 0, and 
another to 1000 ?) Could it be implemented for a next version ?

Thanks for any idea.

P.


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Soil and Water Laboratory
Biological and Environmental Engineering Department
Cornell University
Riley-Robb Hall
ITHACA, NY 14853 - USA