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IDProjectCategoryView StatusDate SubmittedLast Update
0006831VTK(No Category)public2008-04-16 14:262016-08-12 09:54
Reporterkentwilliams 
Assigned ToKitware Robot 
PrioritynormalSeveritycrashReproducibilitysometimes
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
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Type
Summary0006831: vtkContourWidgetRepresentation crashes when faced with unexpected contour points upon initialization.
DescriptionThis is outside the normal operation of the Contour Widget, understandably: In the process of debugging my program, I have called vtkContourRepresentation::Initialize with point data that lies entirely outside the view volume.

What happens then is the problem:

1. vtkContourRepresentation throws away all the points in the current polyline.
2. In vtkContourRepresentation::UpdateContour, there's a call to vtkContourRepresentation::UpdateLines:

    this->UpdateLine( this->Internal->Nodes.size()-1, 0);

Since the internal nodes are empty, this->Internal->Nodes.size() - 1 == -1. This causes a crash in UpdateLine, because it uses -1 as an index into this->Internal->Nodes ...
Steps To Reproduce
Additional Information#0 0x078fa963 in vtkContourRepresentation::UpdateLine (this=0x2d975f70, idx1=-1, idx2=0) at /VTK/Widgets/vtkContourRepresentation.cxx:974
#1 0x078fab6b in vtkContourRepresentation::UpdateContour (this=0x2d975f70) at VTK/Widgets/vtkContourRepresentation.cxx:1018
#2 0x07944ada in vtkOrientedGlyphContourRepresentation::BuildRepresentation (this=0x2d975f70) at VTK/Widgets/vtkOrientedGlyphContourRepresentation.cxx:511
#3 0x078fa8d1 in vtkContourRepresentation::Initialize (this=0x2d975f70, pd=0x405c6860) at VTK/Widgets/vtkContourRepresentation.cxx:1108
#4 0x078fe369 in vtkContourWidget::Initialize (this=0x2d9958d0, pd=0x405c6860, state=1) at VTK/Widgets/vtkContourWidget.cxx:377

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Issue History
Date ModifiedUsernameFieldChange
2008-04-16 14:26kentwilliamsNew Issue
2011-06-16 13:11Zack GalbreathCategory => (No Category)
2016-08-12 09:54Kitware RobotNote Added: 0036968
2016-08-12 09:54Kitware RobotStatusexpired => closed
2016-08-12 09:54Kitware RobotResolutionopen => moved
2016-08-12 09:54Kitware RobotAssigned To => Kitware Robot

Notes
(0036968)
Kitware Robot   
2016-08-12 09:54   
Resolving issue as `moved`.

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