MantisBT - VTK
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IDProjectCategoryView StatusDate SubmittedLast Update
0011576VTK(No Category)public2010-12-07 11:412016-08-12 09:55
Reportertomasz 
Assigned ToKitware Robot 
PrioritynormalSeverityminorReproducibilityalways
StatusclosedResolutionmoved 
PlatformWin32OSOS Version
Product Version 
Target VersionFixed in Version 
Project
Type
Summary0011576: vtkProbeFilter very slow when probes are at cells with node blanking
DescriptionvtkProbeFilter spends lots of time (approx. 1000 x normal seed case) when probe location resides within a cell with one or more points blanked.
On my Core-i7/920 it takes 1/4 second to probe such "degenerate" cell, while 1000 non-generated probes succeed within the same time. The structured 3D grid is pretty small with 250k nodes only!
Steps To ReproduceCreate Structured Grid.
Add some point data,
issue some BlankPoint(...) on some region.
vtkProbeFilter on single source point at some location which belongs to a cell with blanked node(s).
UpdateProgress shows 0 and, finally, after 1/4-1 second, the next update.
Compare vtkProbeFilter behaviour to the normal (non blanked) location.
Additional InformationIt seems to me that FindCell or the region nearby within ProbeEmptyPoints might be responsible for "extremely slow" handling of cells with points blanked.
Despite this "Performance issue" results are correct (NullPoint as expected data).
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Issue History
Date ModifiedUsernameFieldChange
2010-12-07 11:41tomaszNew Issue
2010-12-07 11:45tomaszNote Added: 0023755
2016-08-12 09:55Kitware RobotNote Added: 0037214
2016-08-12 09:55Kitware RobotStatusexpired => closed
2016-08-12 09:55Kitware RobotResolutionopen => moved
2016-08-12 09:55Kitware RobotAssigned To => Kitware Robot

Notes
(0023755)
tomasz   
2010-12-07 11:45   
Applies to VTK 5.6 also.
(0037214)
Kitware Robot   
2016-08-12 09:55   
Resolving issue as `moved`.

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