[GRASS-dev] Re: [GRASS GIS] #1000: v.category option=del doesn't delete multiple cats per object

[GRASS GIS]

#1000: v.category option=del doesn't delete multiple cats per object
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  Reporter:  needelsd     |       Owner:  grass-dev at lists.osgeo.org                         
      Type:  defect       |      Status:  new                                               
  Priority:  normal       |   Milestone:  6.4.0                                             
 Component:  Vector       |     Version:  6.4.0 RCs                                         
Resolution:               |    Keywords:  v.category v.to.points v.clean delete replace cats
  Platform:  Unspecified  |         Cpu:  Unspecified                                       
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Comment (by martinl):

 Replying to [ticket:1000 needelsd]:

 Please use pre-formatted text otherwise it's not readable.

 {{{
 # Extract 5 lines, extract nodes into layer 2
 v.edit map=L_1 tool=create --o
 v.edit map=L_1 tool=copy ids=17,424-426,496 bgmap=roads
 v.to.points -n input=L_1 output=P_1_raw
 # Remove duplicate points (overlapping nodes from adjacent segments)
 v.clean input=P_1_raw output=P_1 tool=snap,rmdupl thresh=.1,-1 type=point
 --o
 # Replace cat values with sequential values
 v.category input=P_1 output=P_1_no_cats option=del layer=2 --o
 v.category input=P_1_no_cats output=P_1_cats option=add layer=2 --o

 # Expected result- layer 2 cat values 1-6
 v.category input=P_1_cats option=print layer=2
 ## cat  1 2 1 2 3 6

 # The v.clean tool=rmdupl step results in objects with multiple cats
 separated by "/"
 v.category P_1 option=print layer=2
 ## cat  4 9 10/1 5/2 8/3 7/6

 # The v.category option=del step only removes the first cat of each pair
 v.category input=P_1_no_cats option=print layer=2
 ## cat  1 2 3 6
 }}}

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Ticket URL: <http://trac.osgeo.org/grass/ticket/1000#comment:2>
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