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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 
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.
TagsNo tags attached.
ProjectINL
Topic Name
Typeincorrect functionality
Attached Filespng file icon Screenshot from 2014-12-23 09:22:21.png [^] (267,841 bytes) 2014-12-23 09:23

 Relationships
related to 0009688closedKitware Robot Can't plot multiple points over time 

  Notes
(0021356)
Eric Monson (reporter)
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 (reporter)
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 (reporter)
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 (administrator)
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 (reporter)
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 (manager)
2015-06-04 17:44

 Oh, that is sweet.

Tested master, Linux, local server.

 Issue History
Date Modified Username Field Change
2010-07-08 14:35 Ken Moreland New Issue
2010-07-12 11:33 Eric Monson Note Added: 0021356
2010-07-12 11:37 Ken Moreland Relationship added related to 0009688
2011-06-16 13:10 Zack Galbreath Category Feature Request => Feature
2012-09-05 14:30 Utkarsh Ayachit Project => INL
2012-09-05 14:30 Utkarsh Ayachit Type => incorrect functionality
2012-09-05 14:30 Utkarsh Ayachit Assigned To => Leo Liu
2012-09-05 14:30 Utkarsh Ayachit Product Version => git-next
2013-04-07 15:01 Michał Wróbel Note Added: 0030539
2013-04-07 15:24 Michał Wróbel Note Added: 0030540
2014-12-23 09:23 Utkarsh Ayachit Note Added: 0034007
2014-12-23 09:23 Utkarsh Ayachit Assigned To Leo Liu =>
2014-12-23 09:23 Utkarsh Ayachit Status expired => gatekeeper review
2014-12-23 09:23 Utkarsh Ayachit Resolution open => no change required
2014-12-23 09:23 Utkarsh Ayachit Fixed in Version => git-master
2014-12-23 09:23 Utkarsh Ayachit File Added: Screenshot from 2014-12-23 09:22:21.png
2014-12-23 09:23 Utkarsh Ayachit Assigned To => Utkarsh Ayachit
2014-12-23 09:23 Utkarsh Ayachit Status gatekeeper review => customer review
2014-12-24 05:46 Michał Wróbel Note Added: 0034012
2015-01-02 10:43 Utkarsh Ayachit Fixed in Version git-master => 4.3
2015-06-04 17:44 Alan Scott Note Added: 0034483
2015-06-04 17:44 Alan Scott Status customer review => closed

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