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IDProjectCategoryView StatusDate SubmittedLast Update
0000875VTK(No Category)public2004-05-26 09:472016-08-12 09:54
ReporterJoerg Rings 
Assigned ToWill Schroeder 
PriorityhighSeveritymajorReproducibilityalways
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
Project
Type
Summary0000875: vtkDelaunay3D - inserting points skips points
DescriptionThe function vtkDelaunay3D performs a walk from an initial tet to the tet containing the point to be inserted. This is done by a clever way, but a depth check prevents some points from being set if the walk isn't successful. This leads to triangulation where the surface isn't correct because points in between are missing, but I need surfaces on two meshes that fit if I put the same points in.
I tried a brute force method, searching simply all tets when the depth test failed, it worked so far but I'm not sure if I will get a correct result in all cases.
Steps To Reproduce
Additional Information
TagsNo tags attached.
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Attached Filestgz bugdemo.tgz (20,121) 1969-12-31 19:00
https://www.vtk.org/Bug/file/5120/bugdemo.tgz
jpg screenshot1.jpg (42,115) 1969-12-31 19:00
https://www.vtk.org/Bug/file/5121/screenshot1.jpg
jpg
Issue History
Date ModifiedUsernameFieldChange
2008-09-23 11:30Berk GeveciAssigned ToMathieu Malaterre => Zhanping Liu
2008-09-25 15:35Berk GeveciAssigned ToZhanping Liu => Will Schroeder
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2016-08-12 09:54Kitware RobotNote Added: 0036730
2016-08-12 09:54Kitware RobotStatusexpired => closed
2016-08-12 09:54Kitware RobotResolutionopen => moved

Notes
(0001129)
Joerg Rings   
2004-05-27 11:20   
My humble attempt at a correction doesn't work out and produces segmentation faults.
(0001178)
Mathieu Malaterre   
2004-06-05 11:29   
Can you please send us a dataset + demo code to reproduce the bug.
(0001182)
Joerg Rings   
2004-06-07 04:39   
I uploaded a bugdemo.tgz.
It contains:
pointcloud.vtk : Point data in vtk format created by my code as an input
delaunaybug.C : short code that renders the points and writes them to...
testgrid.vtk
compile: to compile the .C program
demo.pvs: Paraview trace to view the bug. You can see points missing in the relatively regular grid.
codesnippet.txt : What I tried to control the bug. Works much better now but not correct I think and presume. Replaces some lines in vtkDelaunay3D.cxx
(0036730)
Kitware Robot   
2016-08-12 09:54   
Resolving issue as `moved`.

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