                                                           plus_plus
Chapter 12 Attribute Operations

This command resets the internal value used to replace the $++ variable
attribute string, and the string length of the $++ string.

plus_plus

    Resets the internal $++ value.

         plus_plus [n=xx] [l=yy]

    This command resets the initial value used to replace the $++ attribute
    variable.  When $++ is imbedded within an attribute string, it will be
    replaced with a yy character string beginning with xx (which is a whole
    number >= 0).  Each time an attribute containing the $++ string is
    assigned, the xx value is incremented by 1.
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    Options/arguments:

         n=xx      xx will be the next $++ value to be assigned (optional).
         l=yy      yy will be the character length of the xx value inserted: If
                   the xx value is less than yy
                   if yy = 0:     the length of the xx string will vary, being
                                  only long enough to contain the xx value
                                  (e.g. if xx=482 the string would be: 482).
                   if yy > 0:     the length of the xx string will be yy
                                  characters (1-30).  If yy is longer than
                                  needed for xx, xx will be 0 filled on the
                                  left.  If yy is not long enough, xx will be
                                  truncated on the left (e.g. if xx=482 & yy=5
                                  then sting is 00482 if xx=482 & yy=2 then
                                  string is 82). 
    Note: if neither option is specified, you will be prompted for both.
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    Example(s):

    To assign incremental attributes set5-00101 through set5-00152 as a first
    attribute to all 52 objects in set 5, enter:

         plus_plus n=101 1=5
         atrbt_set 5 1 set5-$++

    To begin assigning the attribute 'unit5-stand002' as a second attribute by
    digitizing polygon attributes, enter:

         plus_plus n=2 1=3
         atrbt_dig 2 2 unit5-stand$++
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    See also:

              atrbt_dig, atrbt_rec, atrbt_serial, atrbt_line
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