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0016065

VTK

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public

2016-04-08 05:46

2016-07-06 10:42

Reporter

Stefano Borini

Assigned To

Will Schroeder

Priority

normal

Severity

minor

Reproducibility

have not tried

Status

closed

Resolution

not fixable

Platform

OS Version

Product Version

6.3.0

Target Version

Fixed in Version

Summary

0016065: vtkBandedPolyDataContourFilter::RequestData enters infinite loop for specific dataset

Description

Reference issue on mayavi: https://github.com/enthought/mayavi/issues/67 [^]

The problem is that the following data

[-2.0, 4.7, 4.1]
[ 23.9, 27.4, nan]
[ 28.2, 26.6, nan]

produce an infinite loop in the following part of the BandedPolyDataContourFilter

for ( mR=idx, intersectionPoint=0; !intersectionPoint; )
        {
        numPointsToAdd++;
        mR = (mR + 1) % numFullPts;
        if ( isContourValue[mR] && s[mR] != s[idx] ) intersectionPoint = 1;
        }

Both the negative value and the nans are necessary to trigger the infinite loop.

Present also in vtk 7.1

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No tags attached.

Project

TBD

Type

crash

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Notes
(0036165) Will Schroeder (manager) 2016-07-06 10:41	The presence of NaN means that the data is undefined and cannot be processed. To fix this a separate filter would have to be written to throw out bad data (another variant of clean poly data in other words).

Issue History
Date Modified	Username	Field	Change
2016-04-08 05:46	Stefano Borini	New Issue
2016-07-06 10:39	Will Schroeder	Assigned To	=> Will Schroeder
2016-07-06 10:41	Will Schroeder	Note Added: 0036165
2016-07-06 10:42	Will Schroeder	Status	backlog => closed
2016-07-06 10:42	Will Schroeder	Resolution	open => not fixable