bugGNU Octave - Bugs: bug #57727, __run_test_suite__.m: verbose...

 
 

bug #57727: __run_test_suite__.m: verbose output from Qhull when testing delaunay, griddatan

Submitted by:  Philip Nienhuis <philipnienhuis>
Submitted on:  Sun 02 Feb 2020 05:59:31 PM UTC  
 
Category:  Octave Function Severity:  2 - Minor
Priority:  2 Item Group:  Other
Status:  Confirmed Assigned to:  None
Originator Name:  Philip Nienhuis Open/Closed:  Open
Release:  dev Operating System:  Any

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Mon 03 Feb 2020 04:56:57 PM UTC, comment #1: 

I wouldn't worry about this too much.

The problem is that the QHull librarary itself seems to print this directly to stderr.  Octave could create a temporary file, and pass a handle to that file rather than stderr, call Qhull, then flush the file stream, then read the temporary file to see if there were any messages.  But that's a lot of work for not terribly much value.

I'm marking as Confirmed and lowering the priority.

Rik <rik5>
Project Administrator
Sun 02 Feb 2020 05:59:31 PM UTC, original submission:  

:
  geometry\convhull.m ............................................ pass   11/11
  geometry\delaunay.m ............................................QH6019 qhull input error (qh_scalelast): can not scale last coordinate to [   0,    1].  Input is cocircular or cospherical.   Use
option 'Qz' to add a point at infinity.

While executing:  | qhull d Qt Qbb Qc
Options selected for Qhull 2019.1 2019/06/21:
  run-id 1854176743  qh_QHpointer  delaunay  Qtriangulate  Qbbound-last
  Qcoplanar-keep  _pre-merge  _zero-centrum  Qinterior-keep  Pgood
  _maxoutside  0
QH6019 qhull input error (qh_scalelast): can not scale last coordinate to [   0,    1].  Input is cocircular or cospherical.   Use option 'Qz' to add a point at infinity.

While executing:  | qhull d Qt Qbb Qc
Options selected for Qhull 2019.1 2019/06/21:
  run-id 1854176743  qh_QHpointer  delaunay  Qtriangulate  Qbbound-last
  Qcoplanar-keep  _pre-merge  _zero-centrum  Qinterior-keep  Pgood
  _maxoutside  0
pass   15/15
  geometry\delaunayn.m ........................................... pass    3/3
  geometry\dsearch.m ............................................. pass    2/2
  geometry\dsearchn.m ............................................ pass    6/6
  geometry\griddata.m ............................................ pass   14/14
  geometry\griddata3.m ........................................... pass    2/2
  geometry\griddatan.m ...........................................QH6239 Qhull precision error: initial Delaunay input sites are cocircular or cospherical.  Use option 'Qz' for the Delaunay triangulation or Voronoi diagram of cocircular/cospherical points; it adds a point "at infinity".  Alternatively use option 'QJ' to joggle the input.  Use option 'Qs' to search all points for the initial simplex.

input sites with last coordinate projected to a paraboloid
- p3(v4):     1     0   0.5
- p2(v3):     0     1   0.5
- p1(v2):     1     1     1
- p0(v1):     0     0     0

While executing:  | qhull d Qt Qbb Qc
Options selected for Qhull 2019.1 2019/06/21:
  run-id 1855286005  qh_QHpointer  delaunay  Qtriangulate  Qbbound-last
  Qcoplanar-keep  _pre-merge  _zero-centrum  Qinterior-keep  Pgood
  _max-width  1  Error-roundoff 1.4e-015  _one-merge 9.7e-015
  Visible-distance 2.8e-015  U-max-coplanar 2.8e-015  Width-outside 5.5e-015
  _wide-facet 1.7e-014  _maxoutside 1.1e-014
pass    3/3
  geometry\inpolygon.m ........................................... pass   13/13
:

Philip Nienhuis <philipnienhuis>
Project Member

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2020-02-03 rik5 Summary_run_test_suite_.m: verbose output when testing delauny / qhull => __run_test_suite__.m: verbose output from Qhull when testing delaunay, griddatan
    2020-02-03 rik5 Priority5 - Normal => 2
        StatusNone => Confirmed
        Operating SystemMicrosoft Windows => Any

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