MantisBT - VTK
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ID	Project	Category	View Status	Date Submitted	Last Update
0011846	VTK	(No Category)	public	2011-02-11 13:19	2012-12-12 12:02

Reporter	David Gobbi
Assigned To	David Gobbi
Priority	high	Severity	major	Reproducibility	random
Status	closed	Resolution	fixed
Platform		OS		OS Version
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Target Version		Fixed in Version
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Summary	0011846: The vtkLinearExtrusionFilter is not thread safe
Description	Multiple instances of vtkLinearExtrusionFilter cannot run in multiple threads, because this filter uses static variables to store its internal method return values. The bad code, which dates back to 1995, is as follows: double vtkLinearExtrusionFilter::ViaNormal(double x[3], vtkIdType id, vtkDataArray n) { static double xNew[3], normal[3]; int i; n->GetTuple(id, normal); for (i=0; i<3; i++) { xNew[i] = x[i] + this->ScaleFactornormal[i]; } return xNew; } double vtkLinearExtrusionFilter::ViaVector(double x[3], vtkIdType vtkNotUsed(id), vtkDataArray vtkNotUsed(n)) { static double xNew[3]; int i; for (i=0; i<3; i++) { xNew[i] = x[i] + this->ScaleFactorthis->Vector[i]; } return xNew; } double vtkLinearExtrusionFilter::ViaPoint(double x[3], vtkIdType vtkNotUsed(id), vtkDataArray vtkNotUsed(n)) { static double xNew[3]; int i; for (i=0; i<3; i++) { xNew[i] = x[i] + this->ScaleFactor*(x[i] - this->ExtrusionPoint[i]); } return xNew; }
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Issue History
Date Modified	Username	Field	Change
2011-02-11 13:19	David Gobbi	New Issue
2011-02-11 16:02	David Gobbi	Note Added: 0025399
2011-02-11 16:02	David Gobbi	Status	backlog => @80@
2011-02-11 16:02	David Gobbi	Resolution	open => fixed
2011-02-11 16:02	David Gobbi	Assigned To	=> David Gobbi
2012-12-12 12:02	David Gobbi	Status	customer review => closed

Notes