[GRASS-dev] [GRASS GIS] #2029: raster legend on discrete maps not graduated

GRASS GIS trac at osgeo.org
Tue Jul 9 15:55:56 PDT 2013


#2029: raster legend on discrete maps not graduated
-------------------------+--------------------------------------------------
 Reporter:  timmie       |       Owner:  grass-dev@…              
     Type:  defect       |      Status:  new                      
 Priority:  normal       |   Milestone:  6.4.4                    
Component:  Raster       |     Version:  unspecified              
 Keywords:  d.legend     |    Platform:  Unspecified              
      Cpu:  Unspecified  |  
-------------------------+--------------------------------------------------

Comment(by timmie):

 Replying to [comment:1 hamish]:
 > How many categories in the final image?
 5-15 categories.


 > If there are more categories than there are vertical pixels to display
 them in, d.legend automatically changes into smooth gradient mode; it
 issues you a warning telling you that it did it in that case.
 I did not see this.
 Just a gradient legend with the category breaks as legend labels.



 > the various thin=, lines=, and use= options can be used to reduce the
 number of categories to something that will fit on the screen. Also you
 should check that the map being used is a CELL map, not a FCELL or DCELL.
 It's DCELL.


 > beyond that, I'd need more information to go on about your raster.
 (r.info, screenshots, exact CLI commands to reproduce, xmon or wxGUI, ...)

 r.info map=landcover_zones at land
 +----------------------------------------------------------------------------+
  | Layer:    landcover_zon  Date: Fri Apr 05 11:45:37 2013    |
  | Mapset:   land                        Login of Creator: timmie
 |
  | Location: 6.4_merc                                        |
  | DataBase: /home/timmie/gis/grassdata
 |
  | Title:    Reclass of landcover |
  | Timestamp: none
 |
 |----------------------------------------------------------------------------|
  |
 |
  |   Type of Map:  reclass              Number of Categories: 0
 |
  |   Data Type:    CELL
 |
  |   Rows:         12076
 |
  |   Columns:      16879
 |
  |   Total Cells:  203830804
 |
  |        Projection: Mercator
 |
  |            N:    6698600    S:    6491000   Res:   100
 |
  |            E:    2205800    W:    0517900   Res:   100
 |
  |   Range of data:    min = 2099  max = 3000
 |
  |
 |
  |   Data Source:
 |
  |    Reclassified map based on:
 |
  |      Map [landcover_base at land] in mapse |
  |
 |
  |   Data Description:
 |
  |
 |
  |
 |
  |   Comments:
 |
  |
 |
  |    generated by r.reclass
 |
  |    r.reclass ...                                            |
  |
 |
 +----------------------------------------------------------------------------+

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/2029#comment:2>
GRASS GIS <http://grass.osgeo.org>



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