MantisBT - ParaView
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IDProjectCategoryView StatusDate SubmittedLast Update
0010959ParaViewFeaturepublic2010-07-08 14:352015-06-04 17:44
ReporterKen Moreland 
Assigned ToUtkarsh Ayachit 
PrioritynormalSeverityminorReproducibilityhave not tried
StatusclosedResolutionno change required 
PlatformOSOS Version
Product Versiongit-next 
Target VersionFixed in Version4.3 
ProjectINL
Topic Name
Typeincorrect functionality
Summary0010959: Line chart should plot multiple blocks simultaneously
DescriptionThe line chart view is only able to plot series from a single block at a time. This is a very important use case for the line chart because filters like plot selection over time will place the data for each selected element in its own block.

Here is a simple example of a good use case:

1. Load out can.ex2, load all variables, apply.
2. Go to the last time step.
3. Edit -> Find Data.
4. Find all cells with EQPS >= 2.
5. After the selection is run, click the "Plot Selection Over Time" button.
6. Apply the filter and observe the plot.

Although many cells were selected, only one actually shows in the line chart view at a time. To view others, you have to go to the display panel and select different "blocks." This is unacceptable. You often need to compare the series against each other.
Steps To Reproduce
Additional Information
TagsNo tags attached.
Relationships
related to 0009688closed Kitware Robot Can't plot multiple points over time 
Attached Filespng Screenshot from 2014-12-23 09:22:21.png (267,841) 2014-12-23 09:23
https://www.vtk.org/Bug/file/9790/Screenshot%20from%202014-12-23%2009%3A22%3A21.png
Issue History
Date ModifiedUsernameFieldChange
2010-07-08 14:35Ken MorelandNew Issue
2010-07-12 11:33Eric MonsonNote Added: 0021356
2010-07-12 11:37Ken MorelandRelationship addedrelated to 0009688
2011-06-16 13:10Zack GalbreathCategoryFeature Request => Feature
2012-09-05 14:30Utkarsh AyachitProject => INL
2012-09-05 14:30Utkarsh AyachitType => incorrect functionality
2012-09-05 14:30Utkarsh AyachitAssigned To => Leo Liu
2012-09-05 14:30Utkarsh AyachitProduct Version => git-next
2013-04-07 15:01Michał WróbelNote Added: 0030539
2013-04-07 15:24Michał WróbelNote Added: 0030540
2014-12-23 09:23Utkarsh AyachitNote Added: 0034007
2014-12-23 09:23Utkarsh AyachitAssigned ToLeo Liu =>
2014-12-23 09:23Utkarsh AyachitStatusexpired => gatekeeper review
2014-12-23 09:23Utkarsh AyachitResolutionopen => no change required
2014-12-23 09:23Utkarsh AyachitFixed in Version => git-master
2014-12-23 09:23Utkarsh AyachitFile Added: Screenshot from 2014-12-23 09:22:21.png
2014-12-23 09:23Utkarsh AyachitAssigned To => Utkarsh Ayachit
2014-12-23 09:23Utkarsh AyachitStatusgatekeeper review => customer review
2014-12-24 05:46Michał WróbelNote Added: 0034012
2015-01-02 10:43Utkarsh AyachitFixed in Versiongit-master => 4.3
2015-06-04 17:44Alan ScottNote Added: 0034483
2015-06-04 17:44Alan ScottStatuscustomer review => closed

Notes
(0021356)
Eric Monson   
2010-07-12 11:33   
This is related to 9688: http://www.cmake.org/Bug/view.php?id=9688 [^]
(Sorry, I see how to add a "related to" in the official way...)
(0030539)
Michał Wróbel   
2013-04-07 15:01   
In the most recent revision of ParaView from master branch (15c678ae) the problem described by Ken can be reproduced by slightly modifying the provided steps - after step 4 one needs to click "Freeze Selection". Otherwise, only statistics of the whole set of block would be plotted and it would be plotted fine.

A simpler guide to reproduce the bug is:
1. Load out can.ex2, load all variables, apply,
2. Use "Select cells on" and manually select a few cells,
3. Filters -> Data Analysis -> Plot Selection Over Time
4. Apply plot properties
5. Select a few blocks
6. Set Use Data Array again to "... Time"

This will result in getting the following errors:

ERROR: In /home/maw/paraview/ParaView/VTK/Charts/Core/vtkPlotPoints.cxx, line 486
vtkPlotLine (0x86ca7d0): No X column is set (index 0).


As I needed this to function properly, I investigated the issue. It appears to be caused by mismatch between the name of series to use as X Axis Data ("Block: 3 ; Cell : 123/Time") and the raw variable name ("Time").
(0030540)
Michał Wróbel   
2013-04-07 15:24   
I made a simple modification which solves the issue http://review.source.kitware.com/#/t/2554/ [^]

However, I feel that it's more a workaround rather than a good solution.
(0034007)
Utkarsh Ayachit   
2014-12-23 09:23   
This doesn't seem to be an issue anymore. We can select multiple blocks to be shown in a line chart view without any issues (screenshot attached). Notice how line plots for multiple cells are now shown in the view. (Don't forget to "Freeze Selection" as Michal suggests, or just use his simplified steps).
(0034012)
Michał Wróbel   
2014-12-24 05:46   
Yes, I confirm it has been fixed. Actually I've just found out that it has been fixed by Sebastien Jourdain a few days after my patch submission:

http://www.paraview.org/Bug/view.php?id=14002 [^]
http://www.paraview.org/gitweb?p=ParaView.git;a=commit;h=c87daf1d7da2d53fc88e29eee0ca10026db21acd [^]

His patch actually looks like a solution, not a workaround like mine.
(0034483)
Alan Scott   
2015-06-04 17:44   
Oh, that is sweet.

Tested master, Linux, local server.