NVIZ fails to display all points in a point vector map

[tvrusso]

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).

[tvrusso]

NVIZ displaying improperly with region set to same as raster elevation

[tvrusso]

NVIZ displaying properly, region set 5 meters larger on each side than elevation raster

[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.

[marisn]

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?)

[marisn]

Everything seems to be working just fine.