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IDProjectCategoryView StatusDate SubmittedLast Update
0013472VTK(No Category)public2012-09-25 16:082016-08-12 09:55
ReporterHenning Meyer 
Assigned ToSebastien Jourdain 
PriorityhighSeverityminorReproducibilityhave not tried
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version5.8.0 
Target VersionFixed in Version 
Summary0013472: vtkContourFilter precision with vtkBoolean/ vtkPlane
DescriptionThe quality of the generated mesh dramatically changes, when the scale (size) of
the model is changed (with adapted dims and bounds of the vtkSampleFunction).
For me, this only happens in combinations of vtkPlane or vtkBox with
vtkImplicitBoolean.
Example attached.

Bug observed in 5.8 and 6.0.
TagsNo tags attached.
ProjectRelease
Typeincorrect functionality
Attached Files? file icon ImplicitSphere.tbz [^] (1,140 bytes) 2012-09-25 16:08
? file icon images.tbz [^] (10,789 bytes) 2012-10-05 01:17
png file icon SamplingImplicitFunction.png [^] (59,660 bytes) 2012-10-05 07:59


png file icon SamplingImplicitFunction2.png [^] (62,674 bytes) 2012-10-05 08:04


? file icon sphere-images.tbz [^] (15,279 bytes) 2012-10-05 09:37

 Relationships

  Notes
(0029327)
Henning Meyer (reporter)
2012-10-05 01:18

 added images.tbz consisting of a MetaImage-Examples of the generated ImageData.
The MetaImages can be loaded in ParaView and the behaviour can be observed there as well.
(0029328)
Henning Meyer (reporter)
2012-10-05 01:49

 use 0 as IsoSurface value
(0029329)
Sebastien Jourdain (developer)
2012-10-05 08:10

 Due to the dimension that are used for the Implicit sphere radius and the value that get assigned to each grid points, we reach some precision issue which lead to a poor cell splitting.
(0029330)
Henning Meyer (reporter)
2012-10-05 09:45

 I uploaded another example. Those two images show that the algorithm can cope very well with very large values.
The problem seems too be very large (2e+08) positive and just large (-8000) negative values. This distribution in the first examples resulted from the boolean operation.
(0037294)
Kitware Robot (administrator)
2016-08-12 09:55

 Resolving issue as `moved`.

This issue tracker is no longer used. Further discussion of this issue may take place in the current VTK Issues page linked in the banner at the top of this page.

 Issue History
Date Modified Username Field Change
2012-09-25 16:08 Henning Meyer New Issue
2012-09-25 16:08 Henning Meyer File Added: ImplicitSphere.tbz
2012-10-04 16:47 Sebastien Jourdain Assigned To => Sebastien Jourdain
2012-10-04 16:47 Sebastien Jourdain Status backlog => tabled
2012-10-04 16:47 Sebastien Jourdain Note Added: 0029325
2012-10-04 16:47 Sebastien Jourdain Status tabled => closed
2012-10-04 16:47 Sebastien Jourdain Resolution open => fixed
2012-10-04 18:59 Sebastien Jourdain Status closed => backlog
2012-10-04 18:59 Sebastien Jourdain Resolution fixed => reopened
2012-10-04 19:00 Sebastien Jourdain Note Deleted: 0029325
2012-10-05 01:17 Henning Meyer File Added: images.tbz
2012-10-05 01:18 Henning Meyer Note Added: 0029327
2012-10-05 01:49 Henning Meyer Note Added: 0029328
2012-10-05 07:59 Sebastien Jourdain File Added: SamplingImplicitFunction.png
2012-10-05 08:04 Sebastien Jourdain File Added: SamplingImplicitFunction2.png
2012-10-05 08:10 Sebastien Jourdain Note Added: 0029329
2012-10-05 09:37 Henning Meyer File Added: sphere-images.tbz
2012-10-05 09:45 Henning Meyer Note Added: 0029330
2015-08-26 16:52 Berk Geveci Status backlog => expired
2015-08-26 16:52 Berk Geveci Resolution reopened => fixed
2016-08-12 09:55 Kitware Robot Note Added: 0037294
2016-08-12 09:55 Kitware Robot Status expired => closed
2016-08-12 09:55 Kitware Robot Resolution fixed => moved

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