[GRASS-dev] Re: [GRASS GIS] #128: NVIZ fails to load vector points without other map

GRASS GIS trac at osgeo.org
Thu Apr 17 00:44:37 EDT 2008


#128: NVIZ fails to load vector points without other map
----------------------+-----------------------------------------------------
  Reporter:  neteler  |       Owner:  grass-dev at lists.osgeo.org
      Type:  defect   |      Status:  new                      
  Priority:  major    |   Milestone:  6.4.0                    
 Component:  default  |     Version:  svn-trunk                
Resolution:           |    Keywords:  nviz                     
----------------------+-----------------------------------------------------
Comment (by hamish):

 FWIW, I've been able to plot a vector map in NVIZ which had 1 million
 faces*, it took some time to render but it worked ok.
 * NYC 3D buildings dataset


 (but points are treated differently than lines and faces in NVIZ)

 see also bug #49: NVIZ displays points (sites) always as thematic



 In the past I was able to plot 3D points, but created a new constant
 surface (so no mapname) from the raster panel and set transparency for it
 to 100%; a trick I'm sure you know. screenshot:
   http://grass.osgeo.org/wiki/Help_with_3D#Vector_3D_point_data



 does it work for you with fewer points or does it work with a surface
 (constant or raster map)? [what do you mean by "without other map"?]

 {{{
 Error in startup script: can't use non-numeric floating-point value as
 operand of "*"
     while executing
 "expr int($curr * 1)"
     (procedure "Nv_mkFloatScale" line 16)
     invoked from within
 "Nv_mkFloatScale   .....
 }}}

 hmmm,


 Hamish

-- 
Ticket URL: <http://trac.osgeo.org/grass/ticket/128#comment:2>
GRASS GIS <http://grass.osgeo.org>
GRASS Geographic Information System (GRASS GIS) - http://grass.osgeo.org/


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