> YES!!  I can't do it, but I sure could use a v.digit that would give me
> lengths of each category of vector in my map.  And to print it out wiht
> different colors for each category.  It seems so basic...
> 
It seems to me that computing the lengths of (categories of) vectors
is a task best put as an option under `v.support', since it will take
some considerable time and will need updating after editing in `v.digit'.
To save time, v.support could create a file in dig_plus which is directly
accessible just like the histogram of a raster file. It would be up to
the user to see to it that this file gets updated after the vector file
has been edited.

As for displaying lines of different category in different colors (those
assigned in v.digit), I agree that this should be an option, but this
would require making changes in the dig file format directly, or creating
yet another dig_plus file for color info. It seems that we are going in
the direction of creating a little database for each vector, with fields
`length', `color', `category' and perhaps others...


----\_\_\_--\_----\_------\_-------------------- P. Martijn van Leusen -------- 
     \_   \_ \_\_\_\_      \_        Dept of Pre- and Protohistoric Archaeology
      \_\_\_  \_ \_ \_      \_        University of Amsterdam, The Netherlands
       \_      \_    \_ \_\_ \_               martijn@scanner.frw.uva.nl
--------\_------\_----\_--\_--\_\_\_\_-----------------------------------------

