[GRASS-dev] [grass-code I][335] Wrong output from v.voronoi and v.delaunay

[grass-codei at wald.intevation.org]

code I item #335, was opened at 2007-03-16 12:48
Status: Open
Priority: 3
Submitted By: Māris Nartišs (marisn)
Assigned to: Nobody (None)
Summary: Wrong output from v.voronoi and v.delaunay 
Issue type: module bug
Issue status: None
GRASS version: CVS HEAD
GRASS component: vector
Operating system: Linux
Operating system version: Gentoo ~x86 (32 bit)
GRASS CVS checkout date, if applies (YYMMDD): 070316


Initial Comment:
v.voronoi and v.delaunay seems not to work correctly with large(?) (46647 points) datasets.

Steps to reproduce problem in Spearfish6:
r.contour input=elevation.dem at PERMANENT output=contours minlevel=1000 maxlevel=2000 step=100 cut=10 
v.to.points -v input=contours type=line output=cont_point llayer=1 
v.delaunay input=cont_point output=cont_delaunay 
v.voronoi input=cont_point output=cont_voronoi 

Bottom (south) part of output looks OK, but at some point output turns into garbage - overlaping areas without any logic. 

Attached gis.m screen dumps showing output overview and some place in more detail.

----------------------------------------------------------------------

You can respond by visiting: 
http://wald.intevation.org/tracker/?func=detail&atid=204&aid=335&group_id=21