On Mon, Dec 22, 2008 at 9:43 AM, Ben Abbott <address@hidden> wrote:
On Dec 22, 2008, at 10:11 AM, Ryan Matthew Balfanz wrote:
Hi all,
I've been having trouble getting octave to play nice making voronoi
diagrams with large data sets (~5000).
Does anyone else notice this? I don't want to file a big report
unless
I know it is universal.
Thanks,
Ryan
Can you give some more detail?
It is possible to create a simple script to demonstrate the problem?
Ben
Hi Ben,
Thanks for the reply. He is some more information, hope it helps.
I've not included my own script / data file for this more general
example taken from
http://www.obihiro.ac.jp/~suzukim/masuda/octave/html3/octave_152.html
.
I've only upped the number of random points from 10 to 1000.
=== test_voronoi.m ===
x = rand (1000, 1);
y = rand (size (x));
h = convhull (x, y);
[vx, vy] = voronoi (x, y);
plot (vx, vy, "-b", x, y, "o", x(h), y(h), "-g")
legend ("", "points", "hull");
=== Output ===
client138-50:Desktop ryan$ octave test_voronoi.m
GNU Octave, version 3.0.3
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Output completed. Verifying that all points are below 2.6e-15 of
all facets. Will make 17000 distance computations.
error: invalid vector index = 963
error: evaluating argument list element number 1
error: evaluating assignment expression near line 133, column 7
error: evaluating for command near line 132, column 3
error: called from `voronoi' in file
`/opt/local/share/octave/3.0.3/m/geometry/voronoi.m'
error: near line 4 of file `test_voronoi.m'