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IDProjectCategoryView StatusDate SubmittedLast Update
0013189ParaView(No Category)public2012-05-18 10:042016-08-12 09:59
ReporterPaul Edwards 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version3.14.1 
Target VersionFixed in Version 
Summary0013189: inconsistent cuts from cells with a non-planar quad face
DescriptionWhen a cell has a non-planar face it can give a different cut depending on the normal (see image). Either could be considered correct but I would consider it a bug that it is not consistent for the same cell.

To reproduce use a "Programmable Source" that outputs vtkUnstructuredGrid with the following script:

8<---------------------------------------------
output = self.GetOutput()
npts = 5
pts = vtk.vtkPoints()
pts.InsertNextPoint(-1.0, -1.0, -1.0)
pts.InsertNextPoint( 1.0, -1.0, -0.5)
pts.InsertNextPoint( 1.0, 1.0, -1.0)
pts.InsertNextPoint(-1.0, 1.0, -0.5)
pts.InsertNextPoint( 0.0, 0.0, 1.0)
output.SetPoints(pts)
output.Allocate(1,1)
ids = vtk.vtkIdList()
for i in range(npts):
    ids.InsertId(i,i)
output.InsertNextCell(vtk.VTK_PYRAMID, ids)
--------------------------------------------->8

Now apply "Slice" for Origin (0,0,-0.75) and try Normal of (0,0,-1) and (0,0,1). The output will be different depending on the direction.
TagsNo tags attached.
ProjectTBD
Topic Name
Typeincorrect functionality
Attached Filespng file icon pyramid-cuts.png [^] (97,847 bytes) 2012-05-18 10:04

 Relationships

  Notes
(0038215)
Kitware Robot (administrator)
2016-08-12 09:59

 Resolving issue as `moved`.

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

 Issue History
Date Modified Username Field Change
2012-05-18 10:04 Paul Edwards New Issue
2012-05-18 10:04 Paul Edwards File Added: pyramid-cuts.png
2016-08-12 09:59 Kitware Robot Note Added: 0038215
2016-08-12 09:59 Kitware Robot Status backlog => closed
2016-08-12 09:59 Kitware Robot Resolution open => moved
2016-08-12 09:59 Kitware Robot Assigned To => Kitware Robot

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