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0006831

VTK

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public

2008-04-16 14:26

2016-08-12 09:54

Reporter

kentwilliams

Assigned To

Kitware Robot

Priority

normal

Severity

crash

Reproducibility

sometimes

Status

closed

Resolution

moved

Platform

OS Version

Product Version

Target Version

Fixed in Version

Summary

0006831: vtkContourWidgetRepresentation crashes when faced with unexpected contour points upon initialization.

Description

This 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 ...

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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Notes
(0036968) Kitware Robot (administrator) 2016-08-12 09:54	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
2008-04-16 14:26	kentwilliams	New Issue
2011-06-16 13:11	Zack Galbreath	Category	=> (No Category)
2016-08-12 09:54	Kitware Robot	Note Added: 0036968
2016-08-12 09:54	Kitware Robot	Status	expired => closed
2016-08-12 09:54	Kitware Robot	Resolution	open => moved
2016-08-12 09:54	Kitware Robot	Assigned To	=> Kitware Robot