[GRASS-dev] [GRASS GIS] #2582: please restore important thematic map features themetype, themecalc etc.

[GRASS GIS]

#2582: please restore important thematic map features themetype, themecalc etc.
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 Reporter:  jamesp670    |       Owner:  grass-dev@…              
     Type:  enhancement  |      Status:  new                      
 Priority:  normal       |   Milestone:  7.0.0                    
Component:  Display      |     Version:  svn-releasebranch70      
 Keywords:               |    Platform:  All                      
      Cpu:  x86-64       |  
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 In the upgrade from GRASS 6.4.2 to GRASS 7, d.vect.thematic seems to
 have changed significantly.  This is my tool of choice for making a
 legend for vector layers.  For example, given a street map of lines
 called streetswm, and a column dacount indicating vehicles counted on
 a given segment, and with a monitor open, the simplest but still very
 useful d.vect.thematic command is:

 d.vect.thematic map=streetswm at PERMANENT type=line column=dacount \
 \

   themetype=graduated_colors themecalc=interval nint=8 \
 \

   colorscheme=blue-red psmap=testthem2
 \


 In 6.4.2, that outputs both the legend and a nice thematic map using
 psmap syntax.

 To be clear, I am looking for two separate features:

 1. To automatically generate breaks and assign colors to them.  I just
    say "gimme 8 intervals in the blue-red" and I get out intelligence
    like "text 14% 54% 632.339 - 752.795 " (from
    testthem2\_legend.psmap).
 2. To automatically generate psmap commands, especially for the legend,
    reflecting the breaks and colors automatically assigned in step 1.

 UPDATE

 Moritz Lennert: wrote in reply to this issue:

 You are right that the C-module version is less feature-rich in some
 aspects than the original script version. Please file enhancement
 requests against that module for the different feature you would like
 to see (altough discussions are ongoing on whether this module should
 actually continue to be developed or not, see [1]).

 The old script module is still available as an addon under the name
 d.vect.thematic2 [2] and should be easy to install.

 Moritz

 [1]
 http://lists.osgeo.org/pipermail/grass-dev/2015-January/072918.html
 [2]
 http://grass.osgeo.org/grass70/manuals/addons/d.vect.thematic2.html

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2582>
GRASS GIS <http://grass.osgeo.org>