[GRASS-dev] [GRASS GIS] #52: NVIZ fails to display all points in a point vector map

#52: NVIZ fails to display all points in a point vector map
-----------------------------------+----------------------------------------
Reporter: tvrusso | Owner: grass-dev@lists.osgeo.org
     Type: defect | Status: new
Priority: major | Milestone: 6.4.0
Component: default | Version: unspecified
Keywords: NVIZ, display, points |
-----------------------------------+----------------------------------------
I observed some strange behavior in NVIZ while trying to work through
examples in the 3rd edition of "Open Source GIS: A GRASS GIS Approach" by
Markus Neteler and Helena Mitasova.

To reproduce:
   - download the nc_spm_06 GRASS location from http://www.grassbook.org/
under the Data Sets link for 3rd edition
   - Start GRASS with that location and run the command given in Chapter
3.1, First Steps, on page 33:
     g.region rast=elevation
     nviz elev=elevation vect=streams,roadsmajor, point=overpasses

When I run the last command, only a single overpass point is displayed.
See first attached screenshot, where a single red sphere is visible.

However, if I change the region slightly, say by expanding it five meters
in all directions:

   g.region -p
   g.region n=228505 s=214995 e=645005 w=629995
   nviz elev=elevation vect=streams,roadsmajor, point=overpasses

I then see all the points as they should have been, as displayed in second
screenshot, where multiple points are visible.

This is with GRASS SVN checked out this morning (and was present in SVN
for at least the last week, probably longer but this is the first time I
checked).

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52&gt;
GRASS GIS <http://grass.osgeo.org>
GRASS Geographic Information System (GRASS GIS) - http://grass.osgeo.org/

#52: NVIZ fails to display all points in a point vector map
----------------------+-----------------------------------------------------
  Reporter: tvrusso | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.4.0
Component: default | Version: unspecified
Resolution: | Keywords: NVIZ, display, points
----------------------+-----------------------------------------------------
Comment (by tvrusso):

My GRASS commands got munged by the wiki formatting. They looked OK in
the preview, but it should be clear where the line breaks should have
been, separating the g.region and nviz commands.

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52#comment:1&gt;
GRASS GIS <http://grass.osgeo.org>
GRASS Geographic Information System (GRASS GIS) - http://grass.osgeo.org/

Comment (by tvrusso):

My GRASS commands got munged by the wiki formatting. They looked OK
in the preview, but it should be clear where the line breaks should
have been, separating the g.region and nviz commands.

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52#comment:1&gt;

Hi,

To stop trac from wiki-formatting a section of code use three curly
brackets like so:

{{{
  g.region rast=elevation.dem
  d.rast elevation.dem
}}}

help:
  http://trac.osgeo.org/grass/wiki/WikiFormatting
  http://trac.osgeo.org/grass/wiki/TracLinks
   (eg using '#xx' to link to bug number, 'r12345' to link to SVN
    change id, or 'source:trunk/...' to link to a source file)

Hamish

      ____________________________________________________________________________________
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs

#52: NVIZ fails to display all points in a point vector map
----------------------+-----------------------------------------------------
  Reporter: tvrusso | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.4.0
Component: Tcl | Version: unspecified
Resolution: | Keywords: NVIZ, display, points
----------------------+-----------------------------------------------------
Changes (by martinl):

  * component: default => Tcl

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52#comment:2&gt;
GRASS GIS <http://grass.osgeo.org>
GRASS Geographic Information System (GRASS GIS) - http://grass.osgeo.org/

#52: NVIZ fails to display all points in a point vector map
----------------------+-----------------------------------------------------
  Reporter: tvrusso | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.4.0
Component: NVIZ | Version: unspecified
Resolution: | Keywords: NVIZ, display, points
----------------------+-----------------------------------------------------
Changes (by neteler):

  * component: Tcl => NVIZ

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52#comment:3&gt;
GRASS GIS <http://grass.osgeo.org>

#52: NVIZ fails to display all points in a point vector map
--------------------------+-------------------------------------------------
  Reporter: tvrusso | Owner: grass-dev@lists.osgeo.org
      Type: defect | Status: new
  Priority: major | Milestone: 6.4.0
Component: NVIZ | Version: unspecified
Resolution: | Keywords: NVIZ, display, points
  Platform: Unspecified | Cpu: Unspecified
--------------------------+-------------------------------------------------
Changes (by marisn):

  * platform: => Unspecified
  * cpu: => Unspecified

Comment:

I can not reproduce point issue with 6.4 r41200 on ~AMD64 Gentoo with
nc_spm_08. Reporter - please retest with latest version. IMHO WORKSFORME.

Still I get different issue - lines (roads, rivers) are no displayed at
all. Works fine in 6.5 (nviz && ogsf - candidates for sync with 6.5?)

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52#comment:4&gt;
GRASS GIS <http://grass.osgeo.org>

#52: NVIZ fails to display all points in a point vector map
--------------------------+-------------------------------------------------
  Reporter: tvrusso | Owner: grass-dev@…
      Type: defect | Status: closed
  Priority: major | Milestone: 6.4.0
Component: NVIZ | Version: unspecified
Resolution: fixed | Keywords: NVIZ, display, points
  Platform: Unspecified | Cpu: Unspecified
--------------------------+-------------------------------------------------
Changes (by marisn):

  * status: new => closed
  * resolution: => fixed

Comment:

Everything seems to be working just fine.

--
Ticket URL: <http://trac.osgeo.org/grass/ticket/52#comment:5&gt;
GRASS GIS <http://grass.osgeo.org>