[GRASS-user] v.delaunay Bug in Mac OS X

[Michael Perdue]

This is the first time I noticed the problem, but I haven't used  
v.delaunay in a while. I tried the command modification you suggested,  
but with the same outcome. I also went back and recompiled a svn  
checkout from about 1.5 months ago as a 32 bit app, but v.delaunay  
behaved identically. I'm not sure whether v.hull and v.voronoi share  
much of the same code or not, but they both run fine.

On 16-Jun-09, at 5:57 PM, William Kyngesburye wrote:

> I don't see any changes in v.delaunay itself from RC4, though maybe  
> there are changes in the vector libraries.  Did this work in RC4?
>
> A big difference in RC5 for OSX is that it's now 64bit.  Does this  
> work:
>
> arch -i386 v.delaunay in=DelaunayPoints out=DelaunayTriangles
>
> On Jun 16, 2009, at 5:50 PM, Michael Perdue wrote:
>
>> Hi,
>>
>> v.delaunay is generating incorrect results on Mac OS X on my  
>> machine (Intel Mac Pro, Leopard, W. Kyngesburye's GRASS 6.4-RC5  
>> binaries). The following commands give the results below;
>>
>> echo "456490.2375|5905949.8625|1
>> 456690.09166667|5905895.5625|2
>> 456570.93333333|5905821.65416667|3
>> 456579.22916667|5905881.9875|4
>> 456494.00833333|5905859.3625|5
>> 456673.5|5905819.39166667|6
>> 456601.85416667|5905782.4375|7
>> 456604.11666667|5905944.58333333|8" | v.in.ascii -n  
>> output=DelaunayPoints cat=3
>>
>> v.delaunay input=DelaunayPoints output=DelaunayTriangles
>> 	Building topology for vector map <DelaunayTriangles>...
>> 	Registering primitives...
>> 	12 primitives registered
>> 	24 vertices registered
>> 	Building areas...
>> 	100%
>> 	4 areas built
>> 	1 isles built
>> 	Number of nodes: 8
>> 	Number of primitives: 12
>> 	Number of points: 0
>> 	Number of lines: 0
>> 	Number of boundaries: 12
>> 	Number of centroids: 0
>> 	Number of areas: 4
>> 	Number of isles: 1
>> 	Number of incorrect boundaries: 4
>> 	Number of areas without centroid: 4
>> 	WARNING: Unable to calculate area centroid z coordinate
>> 	100%
>> 	Building topology for vector map <DelaunayTriangles>...
>> 	Attaching islands...
>> 	100%
>> 	Attaching centroids...
>> 	100%
>> 	Number of nodes: 11
>> 	Number of primitives: 15
>> 	Number of points: 0
>> 	Number of lines: 0
>> 	Number of boundaries: 12
>> 	Number of centroids: 3
>> 	Number of areas: 4
>> 	Number of isles: 1
>> 	Number of incorrect boundaries: 4
>> 	Number of areas without centroid: 1
>>
>>
>> g.region vect=DelaunayPoints
>>
>> d.mon x0
>> d.vect DelaunayTriangles
>> d.vect map=DelaunayPoints color=red width=0 icon=basic/circle size=10
>>
>> <v.delaunay problem.tiff>
>>
>>
>> I've tested it on the same machine running Linux and had no issue.  
>> It also ran without issue on Mac OS X with GRASS 6.3. Can anyone  
>> verify that it isn't working properly anymore or could it be a  
>> problem with my installation?
>>
>> Cheers,
>>
>> Mike_______________________________________________
>> grass-user mailing list
>> grass-user at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/grass-user
>
> -----
> William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
> http://www.kyngchaos.com/
>
> "Those people who most want to rule people are, ipso-facto, those  
> least suited to do it."
>
> - A rule of the universe, from the HitchHiker's Guide to the Galaxy
>
>