[GRASS-dev] [GRASS GIS] #3313: "None" for no color in the color rules syntax

[GRASS GIS]

#3313: "None" for no color in the color rules syntax
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 Reporter:  NikosA                       |      Owner:  grass-dev@…
     Type:  enhancement                  |     Status:  new
 Priority:  normal                       |  Milestone:  7.2.2
Component:  Vector                       |    Version:  unspecified
 Keywords:  d.vect, rgb, none, no color  |        CPU:  Unspecified
 Platform:  Unspecified                  |
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 Currently the color rules syntax does not feature a "None" or "none" or,
 perhaps, a "NULL" value to mean no color.

 In example,


 {{{
 d.vect hexagons rgb=rgb_column
 }}}


 won't work for if the rgb_column contains "none", "None" or "NULL". A
 warning reports the afore mentioned as invalid color rules.

 Perhaps it would be meaningful to support them or one of them.

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Ticket URL: <https://trac.osgeo.org/grass/ticket/3313>
GRASS GIS <https://grass.osgeo.org>