MantisBT - ParaView
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IDProjectCategoryView StatusDate SubmittedLast Update
0011401ParaViewFeaturepublic2010-11-04 15:452016-08-12 09:58
ReporterDavid Thompson (old) 
Assigned ToKitware Robot 
PrioritynormalSeveritymajorReproducibilityN/A
StatusclosedResolutionmoved 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version 
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Topic Name
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Summary0011401: ParaView should retain common dataset/array information on its own
DescriptionMany file formats are problematic in that they don't include metadata on arrays such as extrema (at one time step or over all time steps), vector magnitude ranges, etc. This results in ParaView spending a lot of time re-running filters that iterate over the data many times in order to obtain this information or avoiding the presentation of this information altogether. ParaView should keep track of this information itself rather than recompute it.
Steps To Reproduce
Additional InformationOne implementation option would be to create an SQLite database and store hashes as keys into array metadata.

The hashes might be of
* the server URL + a full file path + the modification time of the file; or
* the SHA1 checksum of the file.

The metadata might include just extremal values for each array (at each timestep) that has been visited or it might include: the mean, variance, skewness, and kurtosis; or enough quartiles for a CDF sparkline; or even information about interactions between arrays such as which ones are independent of each other or have strong associations.

Furthermore, if a background thread could be run on a file to collect this information once the data is loaded and populate the database, it would allow the information tab in the object inspector to be much more useful and interactive; each time the inspector is made visible, it could check the database for information on the arrays in question and add display widgets when information was present. If this background process also computed SHA1 checksums of raw vtk*Array data, this kind of information could be displayed not just for files but also for the output of downstream filters.
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Issue History
Date ModifiedUsernameFieldChange
2010-11-04 15:45David Thompson (old)New Issue
2011-06-16 13:10Zack GalbreathCategoryFeature Request => Feature
2016-08-12 09:58Kitware RobotNote Added: 0037894
2016-08-12 09:58Kitware RobotStatusexpired => closed
2016-08-12 09:58Kitware RobotResolutionopen => moved
2016-08-12 09:58Kitware RobotAssigned To => Kitware Robot

Notes
(0037894)
Kitware Robot   
2016-08-12 09:58   
Resolving issue as `moved`.

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