[Octave-bug-tracker] [bug #41068] voronoi produces too many vertices for some inputs (regression)

[Rik]

URL:
  <http://savannah.gnu.org/bugs/?41068>

                 Summary: voronoi produces too many vertices for some inputs
(regression)
                 Project: GNU Octave
            Submitted by: rik5
            Submitted on: Thu 02 Jan 2014 11:09:42 AM PST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: Regression
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 3.6.4
        Operating System: Any

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Details:

In octave 3.2.4 and 3.4.3 the following voronoi input correctly produces 3
output line segments.


[vx,vy]=voronoi([278, 155],[90, 195]) 
vx =

  -159.248   216.500    93.838
    93.838    93.838   371.299

vy =

   216.5000  -251.2569    -1.1895
    -1.1895    -1.1895   323.8354


In octave 3.6.4 and later (including 3.8.0) this produces 5 line segments.


[vx,vy]=voronoi([278, 155],[90, 195]) 
vx =

   216.500   535.451   216.500   344.080    88.920
    88.920   344.080   344.080    88.920  -102.451

vy =

  -231.1286   142.5000   516.1286   291.9514    -6.9514
    -6.9514   291.9514   291.9514    -6.9514   142.5000







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