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IDProjectCategoryView StatusDate SubmittedLast Update
0011637ParaViewBugpublic2010-12-21 21:482011-01-20 22:22
ReporterAlan Scott 
Assigned ToRobert Maynard 
PlatformOSOS Version
Product Version 
Target VersionFixed in Version3.10 
Summary0011637: Particles don't show up multi file
DescriptionI have a dataset that has particles show up when you open one file, but not multiple files. This dataset read correctly in PV 3.6.2, but has not worked since then.

To see what it should look like:
* ParaView local server, Linux client (anything will do), trunk.
* Open particles.exo. All variables on. In blocks, turn on ParticleBlock ONLY. Apply.
* Filters/ Warp By Vector. Take defaults (Coords_, and 1). Apply.
* You should see lots of points.
(As a cool simulation, turn Sets surface_4 on. then, color the points by Radius.)

To see the problem, open dataset paralan.e-s0003-2.[0-1]. This is just the datset above, plus another one. Repeat directions above, notice that you don't see anything.

Also, compare the Information tab from both readers (single file and multiple file). With single, you have the same number of points as cells, with two files, you have lots of cells but one point.

If possible, this is very high priority for 3.10.0 (but not a show stopper.)

Ask me for the file (data/alex.../particles tar file)
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Robert Maynard (developer)
2011-01-18 11:19

The issue was the vtkAppendFilter default behaviour was changed to merge duplicate points, this has been fixed in VTK since this behaviour was not correct.

commit 33feb28a15887e59514567c943155208ffdaf26c
Author: Robert Maynard <>
Date: Tue Jan 18 10:48:59 2011 -0500

When merging a multiblock to a u-grid, we want to merge duplicate points.

Now that vtkAppendFilter doesn't merge points by default, we need to turn on the ability to merge points so that the resulting u-grid has no duplicate points.
Alan Scott (manager)
2011-01-20 22:22

Excellent, Robert gets a pat on the back. It looks great.

Tested local server, windows, trunk.


 Issue History
Date Modified Username Field Change
2010-12-21 21:48 Alan Scott New Issue
2011-01-06 09:30 Robert Maynard Assigned To => Robert Maynard
2011-01-06 09:30 Robert Maynard Status backlog => tabled
2011-01-18 11:19 Robert Maynard Note Added: 0024864
2011-01-18 11:19 Robert Maynard Status tabled => @80@
2011-01-18 11:19 Robert Maynard Fixed in Version => 3.10
2011-01-18 11:19 Robert Maynard Resolution open => fixed
2011-01-20 22:22 Alan Scott Note Added: 0024984
2011-01-20 22:22 Alan Scott Status @80@ => closed

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