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IDProjectCategoryView StatusDate SubmittedLast Update
0014237VTK(No Category)public2013-08-19 12:182016-08-12 09:55
ReporterDavid Thompson 
Assigned ToT.J. Corona 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version6.0.0 
Target VersionFixed in Version 
ProjectTBD
Typeincorrect functionality
Summary0014237: Concave polyhedron not likely to be clipped correctly.
DescriptionBecause the InternalContour method of vtkPolyhedron does not perform any refinement, it is possible to construct a concave polyhedron that, when clipped or contoured, will have self-intersecting faces.

The mean-value-coordinates interpolant does not guarantee convexity except on convex planar polygonal facets.

The attached example (which also appears to be incorrectly triangulated) produces self-intersecting faces when isovolumed with range [1.5,6.0].
Steps To Reproduce
Additional Information
TagsNo tags attached.
Relationships
related to 0015841closed Kitware Robot vtkCutter not cutting vtkPolyhedron cells correctly 
Attached Files? polyhedron.vtu (2,044) 2013-08-19 12:18
https://www.vtk.org/Bug/file/9504/polyhedron.vtu
Issue History
Date ModifiedUsernameFieldChange
2013-08-19 12:18David ThompsonNew Issue
2013-08-19 12:18David ThompsonFile Added: polyhedron.vtu
2015-09-08 15:41T.J. CoronaAssigned To => T.J. Corona
2015-11-30 09:36T.J. CoronaRelationship addedrelated to 0015841
2015-11-30 09:37T.J. CoronaAssigned ToT.J. Corona =>
2015-11-30 15:31T.J. CoronaAssigned To => T.J. Corona
2015-11-30 15:31T.J. CoronaStatusbacklog => active development
2016-06-13 11:00Menno DeijNote Added: 0036061
2016-08-12 09:55Kitware RobotNote Added: 0037307
2016-08-12 09:55Kitware RobotStatusactive development => closed
2016-08-12 09:55Kitware RobotResolutionopen => moved

Notes
(0036061)
Menno Deij   
2016-06-13 11:00   
Tetrahedralize filter also gives wrong results on this polyhedral cell (inside of U-shape also gets cells).
(0037307)
Kitware Robot   
2016-08-12 09:55   
Resolving issue as `moved`.

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