Re: [Paraview] Creating Append Attributes filter using python

[tpk]

Thanks for the prompt answer, Eric.
That seems to work nicely.

tpk

From: Eric E. Monson emon...@cs.duke.edu
Subject: Re: [Paraview] Creating Append Attributes filter using python
To: tpk stream.ga...@yahoo.co.uk
Cc: paraview@paraview.org
Date: Wednesday, 25 March, 2009, 5:41 PM

Hello,
It looks like you can just give the AppendAttributes filter a list of inputs:
==from paraview import 
servermanager servermanager.Connect()
sph1 = servermanager.sources.SphereSource() elev = 
servermanager.filters.ElevationFilter(Input=sph1) 
sph2 = servermanager.sources.SphereSource() ids = 
servermanager.filters.GenerateIdScalars(Input=sph2)
app = servermanager.filters.AppendAttributes()app.Input = [elev,ids]
view = servermanager.CreateRenderView() rep = 
servermanager.CreateRepresentation(app, view) 
rep.ColorAttributeType = 0  # point data rep.ColorArrayName = 'Ids'  # color by 
Ids 
view.ResetCamera()view.StillRender() ==
-Eric
--Eric E MonsonDuke 
Visualization Technology Group

On Mar 25, 2009, at 8:19 AM, tpk wrote:
Hi all,
 
 Could anyone advise me how to create an Append Attributes filter using 
pvpython?
 
 Paraview documentation refers to Group Parts filter which, I believe, is 
obsolete in version 3.4.0.
 
My purpose is to merge multiple scalar/vector data sets sharing the same 
geometry. The data sets are loaded using PVDReader.

Thanks,
tpk

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[Paraview] [xdmf] read in H5T_COMPOUND

[Cyril Flaig]

Hello,

I try to read in hdf5 files with the xdmf reader. The read in of the
mesh works. But I have some problems with the attributes.

I have the following two hdf datasets:

  DATASET Displacements {
 DATATYPE  H5T_COMPOUND {
H5T_STD_I32LE Node;
H5T_ARRAY { [3] H5T_IEEE_F64LE } Ux Uy Uz;
 }
 DATASPACE  SIMPLE { ( 2609611, 1 ) / ( 2609611, 1 ) }
  DATASET Stress {
 DATATYPE  H5T_IEEE_F64LEH5T_COMPOUND
 DATASPACE  SIMPLE { ( 1633014, 7 ) / ( 1633014, 7 ) }

How do I read in the three floats from the Displacements. The problem
is, that the floats are in a H5T_COMPOUND.

From the second data set I want read in only the 7th column. I'm not
sure, if I do it in the right way.

 Attribute Name=Stress AttributeType=Scalar Center=Cell
   DataItem ItemType=HyperSlab Dimensions=1633014 1
   Type=HyperSlab
 DataItem Dimensions=3 2 Format=XML
 0 6
 1 1
 1633014 1
 /DataItem
 DataItem Dimensions=1633014 7 Format=HDF NumberType=Float
 Precision=8 
   cube.h5:/Stress
 /DataItem
  /DataItem
/Attribute

Thanks for your help

Regards
Cyril Flaig
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Re: [Paraview] pvpython, pvbatch error loading module?

[Utkarsh Ayachit]

Jean,

I've just committed a fix for this issue. Let me know if it does not
work. The new charting representations/views have Qt dependencies.
Those needed to be disabled from the server manager XML as well when
Qt support was not enabled.

/cvsroot/ParaView3/ParaView3/vtkPVConfig.h.in,v  --  vtkPVConfig.h.in
new revision: 1.5; previous revision: 1.4
/cvsroot/ParaView3/ParaView3/Servers/ServerManager/Resources/rendering.xml,v
 --  Servers/ServerManager/Resources/rendering.xml
new revision: 1.336; previous revision: 1.335

Utkarsh


On Thu, Mar 26, 2009 at 6:52 AM, Jean Favre jfa...@cscs.ch wrote:
 CVS users,

 I have PV cvs compiled in full (i.e. PARAVIEW_BUILD_QT_GUI = ON) on one
 cluster. No problem anywhere.

 if I do another compilation (same cluster, same tools, same compiler)
 but with PARAVIEW_BUILD_QT_GUI = OFF, I get these errors. Is the
 representations stuff somehow missing if we compile without GUI?:

 ./bin/pvpython
 Python 2.3.4 (#1, May 26 2007, 19:27:46)
 [GCC 3.4.6 20060404 (Red Hat 3.4.6-8)] on linux2
 Type help, copyright, credits or license for more information.
 from paraview.simple import *
 Traceback (most recent call last):
  File stdin, line 1, in ?
  File /apps-vis/PV/Utilities/VTKPythonWrapping/paraview/simple.py,
 line 19, in ?
    import servermanager
  File
 /apps-vis/PV/Utilities/VTKPythonWrapping/paraview/servermanager.py,
 line 2816, in ?
    _createModules()
  File
 /apps-vis/PV/Utilities/VTKPythonWrapping/paraview/servermanager.py,
 line 2394, in _createModules
    rendering = createModule('representations')
  File
 /apps-vis/PV/Utilities/VTKPythonWrapping/paraview/servermanager.py,
 line 2435, in createModule
    iter = PropertyIterator(proto)
  File
 /apps-vis/PV/Utilities/VTKPythonWrapping/paraview/servermanager.py,
 line 1595, in __init__
    self.SMIterator = aProxy.NewPropertyIterator()
 AttributeError: 'NoneType' object has no attribute 'NewPropertyIterator'

 --
 Jean --
 Swiss National Supercomputing Center
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[Paraview] Two follow-up questions on readers

[Thorsten Hater]

Hello,

I've got two more questions on reader plugins in ParaView.
1) How do I populate GUI-Elements with data read from a file.
   The ParaView book mentions InformationHelpers but does
   not explain their usage.
2) Can I use custom files - which I provide a reader for - in
   pvd-Collection-type XML-files. If yes, how do I do that,
   the naive idea of simply supplying the filename ends in a
   SEG-Fault.
If anyone could point me in the right direction or provide an
example?

   Thorsten
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Re: [Paraview] Select Points on and nearest point ...

[Berk Geveci]

Hi Stefan,

Try this:

- load dataset
- apply probe location
- create spreadsheet
- go to settings and turn on 'Auto Apply'
- change the probe location using 'p'

Does that work? What is the performance like?

-berk

On Fri, Mar 20, 2009 at 2:00 AM, Stefan Melber stefan.mel...@dlr.de wrote:
 Hi David,

 tried this way: theoretically it works, but its a bit laborious:

 -) Activate the filter
 -) p + mouse
 -) Apply
 -) Spreadsheet + select source

 And: i found no possibility to select a new point with the current filter -
 so i have to start a new one. Further on, i clicking apply i have an update
 of PointerPolyDataMapper, which takes a (short) time.

 So overall, it would be nice if i can use it that way:

 -) Activate new Probe-Filter + Spreadsheet
 -) p + Mouse - every time clicking, automatic update of the spreadsheet

 Best regards,

    Stefan

 Select points find vertices, select cells find cells, I believe you
 are trying to find data at a specific location within a cell, which is
 not necessarily on a vertex.

 Try the probe location filter. Activate it, then press p with the
 mouse on the point you are interested in, then click accept. This
 filter does not need additional render passes like selection does, so
 it should be fast.

 If you need to process the data you've identified further, you can
 manually make a location type selection out of the selected coordinate
 (there may be automatic ways to convert that I am not aware of) in the
 selection view.

 On Thu, Mar 19, 2009 at 1:46 AM, Stefan Melber stefan.mel...@dlr.de
 wrote:


 Hi Berk,


 using the button select points on i can drag up a rectangle to select
 some. But sometimes it would be nice by clicking on e.g. a surface to
 find
 the nearest point around - in fieldview for example i have to press to
 cntl-key to do this.



 Using the point selection mode, you should be able to click to select
 1 point. Doesn't this work?



 This works if the point is nearby. If i click e.g. in the middle of a
 triangle of medium size (unstructured mesh) it does not select a point.
 The
 problem is: exploring a solution i am not interested in the points but in
 the flow field and so normally i do not show the points but a e.g. a cut
 with a scalar. There i would like to get information about this scalar
 ...



 And: every time selection points the update of the graphic window takes
 some
 time. Is there a speed up?



 How slow? How big is the geometry that is being rendered?



 The case has about 20e6 points and there is only a cut visible. Rendering
 the clicked point it takes about 5 secs ...

 Regards,

  Stefan


 -berk




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Re: [Paraview] Multiple views with different timesteps

[Utkarsh Ayachit]

Renato,

Currently there's no way to plot different timesteps in different
views directly. An round-about way is to use the Temporal Shift
Scale filter to shift the time for showing data in the second view
such that the same global time maps to different timesteps in
different views.

Utkarsh

2009/3/26 Renato Elias rnel...@gmail.com:

 Is there anyway to plot different time steps when using multiple views?

 I tried to load the dataset twice assigning each dataset loaded to the
 different views but I think that ParaView uses the same time step for all of
 its views.

 Regards

 Renato.

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[Paraview] How to add scalar data in a custom reader?

[shenyanwen]

Hi, everyone!
I am writing a custom reader to read my own file which VTK does not support!
The output type of my file is vtkImageData, and each point has 3~5 type of
scalar. Now I have written
the reader like below, I just do not know how to add the scalar value to the
output object! Please check my code and point what's wrong with my code!
1. set the extent using WHOLE_EXTENT in RequestInformation() like below:

   outInfo-Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),
 0,dim[0]-1,0,dim[1]-1,0,dim[2]-1);

2.set the origin and the extent and spacing in RequestData() like below:

   vtkInformation *outInfo = outputVector-GetInformationObject(0);
vtkImageData *output = vtkImageData::GetDateFormat(outInfo);
int *extent = output-GetUpdateExtent();
 output-SetExtent(extent);
 output-SetOrigin(origin);
  output-SetSpacing(ar);

And now, I want to add some scalar data to the output object.

I wrote my code like this:
vtkIntArray *castkey = vtkIntArray::New();
castkey-SetName(casting_type);
for (int i=0; idim[0]; i++)
{
for (int j=0;jdim[1]; j++)
{
for (int k=0; kdim[2]; k++)
{
int idx = i*dim[2]*dim[1]+j*dim[2]+k;
castkey-InsertNextValue(sgnfile.GetData()[idx]);
}
}
}

output-AddArray(castkey);

note:GetData() returns the scalar value of the point idx.
So I was wonder what I did is right or wrong !
Please give me some suggestion!
Thank you so much!






-- 
shenyan...@gmail.com
Mobile Phone:13476177952
Tel: 027-87558144
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Re: [Paraview] using netcdf in paraview

[John Biddiscombe]

Martha 

Build paraview as usual, ignore all the guff about
PARAVIEW_EXTRA_EXTERNAL_MODULES, remove this from your paraview build,
remove any CSCS addons you might have specified from paraview 'core'
build.

Then build a new new project which will be plugins, using the
cmakelists from the root of CSCS stuff. Enter the paraview build dir,
enable CSCSCommon and netcdf, (netcdf will pick up common when it needs
it - fingers crossed).

then try making it all. Of course it won't actually work, but that's
what I've been trying to say all week!
When it fails, ask Burlen for his netCDF adaptor stuff from visit and
we can all get on with other stuff...

JB


  John,

I must be missing something.  I did as you specified below, then went to
the ParaView directory,
Ran ccmake several times, enabling the correct options per the CSCS web
site(PARAVIEW_EXTRA_EXTERNAL_MODULES,
PARAVIEW_USE_CSCSNetCDF, and the source directory variable) , and ran
make, but again, the same include file was not located, even though I
see it is there in the vtkCSCS directory tree.

Was I supposed to run ccmake under the vtkCSCS trunk before running
ccmake for ParaView?  I did try to do this,
Only to get an error concering "Policy" and the directions for resolving
the error were unclear.

I am a novice concerning ccmake, as the first time I have used it was
last week.

Thanks.

Martha Tonkin


 

-Original Message-
From: John Biddiscombe [mailto:biddi...@cscs.ch] 
Sent: Wednesday, March 25, 2009 10:21 AM
To: Tonkin, Martha E (IS)
Cc: Carbonari, Katie (IS); Paraview Mailing List
Subject: Re: [Paraview] using netcdf in paraview

Martha (+put back on paraview list for reference and google)

My Bad. One of the changes I made to the netCDF code was to handle
series of files (one file per process, or one per timestep) using
another class in vtkCSCSCommon Best thing is check out all of it from
here...
https://svn.cscs.ch/vtkContrib/trunk/vtkCSCS/
and use the cmakelists in the root pv3-plugins folder.
you need CSCSCommomn and netCDF enabled.

Fix the netCDF reader and send me the patches please :)

JB

  
  
Katie,

I was able to check out vtkNetCDF from the SVN server; I had tried 
before using the web site's instructions, but it wouldn't work, I 
suppose because of our firewall; however the "https" in the URL that 
Mr. Biddiscome gave us did make a difference.

However, when I attempted to build ParaView 3.4 with that vtkNetCDF 
module, I got an error once again, this time when for 
vtkNetCDFReader.cxx; what is missing is FileSeriesFinder.h.

I cannot find that include file anywhere, in ParaView3.4, ParaView3.3,

  
  
  
  
etc, so I don't know if it was inadvertently left out of the vtkNetCDF

  
  
  
  
distribution or what.

Martha



-Original Message-
From: Carbonari, Katie (IS)
Sent: Tuesday, March 24, 2009 5:15 PM
To: Tonkin, Martha E (IS)
Subject: FW: [Paraview] using netcdf in paraview




-Original Message-
From: John Biddiscombe [mailto:biddi...@cscs.ch]
Sent: Tue 3/24/2009 5:09 PM
To: Berk Geveci
Cc: Carbonari, Katie (IS); paraview@paraview.org
Subject: Re: [Paraview] using netcdf in paraview
 
Katie

Just looking again at the error messages makes me realize thet you're 
using a very old vtkCSCSnetCDF the version in here 
https://svn.cscs.ch/vtkContrib/trunk/vtkCSCS/vtkNetCDF/ is much more 
recent and will at least compile without errors. It ewas intended for 
meteo data (ocean/atmosphere) and so you should get something out of 
it but the changes I made a few months back will have broken the core 
load of data depending on which convention you are using.
My intention was to create subclasses for each supported convention, 
rather than try to support all of them with aton of options - which is

  
  
  
  
what the current reader does. If you're familiar with vtk code, you'll

  
  
  
  
son work out how to fix it.
I'll take a look at again it in a few weeks.

JB


	Hmmm. It sounds like there is version mismatch between ParaView

  
  and
  
  
	the plugin. We deprecated those classes not long ago. Are you

  
  using
  
  
	cvs ParaView?
	
	-berk
	
	2009/3/23 Carbonari, Katie (IS) katie.carbon...@ngc.com 
mailto:katie.carbon...@ngc.com :
	  

		Hi there. I'm trying to read netcdf data into paraview,

  
  but am 
  
  
having lots
		of issues. I was following these directions (from here:
	
http://www.cscs.ch/index.php?option=com_contenttask=viewid=96Itemid
=1
32):
		
		Please build ParaView using the CMake advanced option
		PARAVIEW_EXTRA_EXTERNAL_MODULES set to CSCSNetCDF rerun

  
  configure 
  
  
and set
		PARAVIEW_USE_CSCSNetCDF to ON, then rerun configure and

  
  enter the 
  
  
name of
		the directory where the source has been extracted.
		Build paraview and the netCDF reader should be embedded.
		Building as a vtk module is supported, documentation

  
  will be 
  
  
provided as
		soon as possible. (Some 

Re: [Paraview] using netcdf in paraview

[Burlen Loring]

I will commit the work next week, along with a Wiki describing how to 
build/configure the dependencies. For planning purposes plan on late 
next week.


John Biddiscombe wrote:

Martha

Build paraview as usual, ignore all the guff about 
PARAVIEW_EXTRA_EXTERNAL_MODULES, remove this from your paraview build, 
remove any CSCS addons you might have specified from paraview 'core' 
build.


Then build a new new project which will be plugins, using the 
cmakelists from the root of CSCS stuff. Enter the paraview build dir, 
enable CSCSCommon and netcdf, (netcdf will pick up common when it 
needs it - fingers crossed).


then try making it all. Of course it won't actually work, but that's 
what I've been trying to say all week!
When it fails, ask Burlen for his netCDF adaptor stuff from visit and 
we can all get on with other stuff...


JB


John,

I must be missing something.  I did as you specified below, then went to
the ParaView directory,
Ran ccmake several times, enabling the correct options per the CSCS web
site(PARAVIEW_EXTRA_EXTERNAL_MODULES,
PARAVIEW_USE_CSCSNetCDF, and the source directory variable) , and ran
make, but again, the same include file was not located, even though I
see it is there in the vtkCSCS directory tree.

Was I supposed to run ccmake under the vtkCSCS trunk before running
ccmake for ParaView?  I did try to do this,
Only to get an error concering Policy and the directions for resolving
the error were unclear.

I am a novice concerning ccmake, as the first time I have used it was
last week.

Thanks.

Martha Tonkin


 


-Original Message-
From: John Biddiscombe [mailto:biddi...@cscs.ch] 
Sent: Wednesday, March 25, 2009 10:21 AM

To: Tonkin, Martha E (IS)
Cc: Carbonari, Katie (IS); Paraview Mailing List
Subject: Re: [Paraview] using netcdf in paraview

Martha (+put back on paraview list for reference and google)

My Bad. One of the changes I made to the netCDF code was to handle
series of files (one file per process, or one per timestep) using
another class in vtkCSCSCommon Best thing is check out all of it from
here...
https://svn.cscs.ch/vtkContrib/trunk/vtkCSCS/
and use the cmakelists in the root pv3-plugins folder.
you need CSCSCommomn and netCDF enabled.

Fix the netCDF reader and send me the patches please :)

JB

  

Katie,

I was able to check out vtkNetCDF from the SVN server; I had tried 
before using the web site's instructions, but it wouldn't work, I 
suppose because of our firewall; however the https in the URL that 
Mr. Biddiscome gave us did make a difference.


However, when I attempted to build ParaView 3.4 with that vtkNetCDF 
module, I got an error once again, this time when for 
vtkNetCDFReader.cxx; what is missing is FileSeriesFinder.h.


I cannot find that include file anywhere, in ParaView3.4, ParaView3.3,



  

etc, so I don't know if it was inadvertently left out of the vtkNetCDF



  

distribution or what.

Martha



-Original Message-
From: Carbonari, Katie (IS)
Sent: Tuesday, March 24, 2009 5:15 PM
To: Tonkin, Martha E (IS)
Subject: FW: [Paraview] using netcdf in paraview




-Original Message-
From: John Biddiscombe [mailto:biddi...@cscs.ch]
Sent: Tue 3/24/2009 5:09 PM
To: Berk Geveci
Cc: Carbonari, Katie (IS); paraview@paraview.org
Subject: Re: [Paraview] using netcdf in paraview
 
Katie


Just looking again at the error messages makes me realize thet you're 
using a very old vtkCSCSnetCDF the version in here 
https://svn.cscs.ch/vtkContrib/trunk/vtkCSCS/vtkNetCDF/ is much more 
recent and will at least compile without errors. It ewas intended for 
meteo data (ocean/atmosphere) and so you should get something out of 
it but the changes I made a few months back will have broken the core 
load of data depending on which convention you are using.
My intention was to create subclasses for each supported convention, 
rather than try to support all of them with aton of options - which is



  

what the current reader does. If you're familiar with vtk code, you'll



  

son work out how to fix it.
I'll take a look at again it in a few weeks.

JB


Hmmm. It sounds like there is version mismatch between ParaView


and
  

the plugin. We deprecated those classes not long ago. Are you


using
  

cvs ParaView?

-berk

	2009/3/23 Carbonari, Katie (IS) katie.carbon...@ngc.com 
mailto:katie.carbon...@ngc.com :
	  


Hi there. I'm trying to read netcdf data into paraview,

but am 
  

having lots
of issues. I was following these directions (from here:

http://www.cscs.ch/index.php?option=com_contenttask=viewid=96Itemid
=1
32):

Please build ParaView using the CMake advanced option
PARAVIEW_EXTRA_EXTERNAL_MODULES set to CSCSNetCDF rerun

configure 
  

and set
PARAVIEW_USE_CSCSNetCDF to ON, then rerun configure and

enter the 
  

name of
the 

Re: [Paraview] Question about writing custom reader for paraview

[Moreland, Kenneth]

You can add more fields by simply adding them to the point data of the output 
data object.

 output-GetPointData()-AddArray(pressure);

Make sure that you set a name for the arrays (using the SetName method of 
vtkDataArray).  That is how ParaView/VTK differentiates the fields.

-Ken


On 3/23/09 12:40 AM, shenyanwen shenyan...@gmail.com wrote:

Hi, thanks so much for your help!
I have changed my code just like what you said.
Now, I should add more than one type scalar like pressure, vol1, vol2, vol3 and 
so on.
So, how can I add these scalars into my output Data?
I have already read these scalars into some variables like m_pressure[numPts], 
m_vol1[numPts],m_vol[numPts] and m_vol3[numPts], and how can I add these 
variables into my output Data?
Thanks so much!

--Seven

2009/3/20 Moreland, Kenneth kmo...@sandia.gov
What you are using is not quite right.  First, it sounds like you really want 
to create a vtkImageData.  This data holds a 1D, 2D, or 3D grid of points with 
origin and uniform spacing on each axis.  Thus, you would inherit from 
vtkImageAlgorithm and cast your output to vtkImageData.

Second, the only thing you directly set in the output information is the 
WHOLE_EXTENT().  You do this in RequestInformation so that the downstream 
pipeline can make decisions about what to load before the data is actually 
loaded.  So, the first line you have below is correct, assuming you put it in 
RequestInformation.

Now, you don't set UPDATE_EXTENT, you get it.  Someone downstream will set this 
the region of data in which it wants you to load.  You don't actually have to 
get this directly from the output information; you can get it from the output 
object.  So in RequestData, you would have code like this:

 vtkImageData *output = vtkImageData::GetData(outInfo);
  int *extent = output-GetUpdateExtent();

Now you can set the actual extent, spacing, origin, and data itself directly 
into the data object.

 output-SetExtent(extent);
  output-SetOrigin(origin);
  output-SetSpacing(ar);

You can then set the data either by allocating and getting scalar data through 
the vtkImageData or by adding data to the image data's point data structure 
(retrieved with GetPointData()).  More details are in The VTK User's Guide.

-Ken



On 3/19/09 1:08 AM, shenyanwen shenyan...@gmail.com 
http://shenyan...@gmail.com  wrote:





Hi, I am writing a custom reader for paraview to read my own data file which 
paraview hasn't have.
I have known that the most important method is RequestInformation and 
RequestData, and I just want to write a reader that can output the data type of 
StructuredPoints with Scalar and some vectors.I have already use :
outInfo-Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),
 0,dim[1]-1,0,dim[1]-1,0,dim[2]-1);
outInfo-Set(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(),
 0,dim[1]-1,0,dim[1]-1,0,dim[2]-1);
and:outInfo-Set(vtkDataObject::SPACING(), ar, 3);
outInfo-Set(vtkDataObject::ORIGIN(), origin, 3);
and how can I read the scalar data just like the file-format describes:
SCALAR dataName dataType numComp
LOOKUP_TABLE tableName
s0
s1
s2
...
s(n-1)

which method or function can I use to read the s0,s1,...,s(n-1) into the 
variable and set to the outInfo.
Thanks so much!





     Kenneth Moreland
***  Sandia National Laboratories
***
*** *** ***  email: kmo...@sandia.gov http://kmo...@sandia.gov
**  ***  **  phone: (505) 844-8919
***  web:   http://www.cs.unm.edu/~kmorel 
http://www.cs.unm.edu/%7Ekmorel





     Kenneth Moreland
***  Sandia National Laboratories
***
*** *** ***  email: kmo...@sandia.gov
**  ***  **  phone: (505) 844-8919
***  web:   http://www.cs.unm.edu/~kmorel

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Re: [Paraview] material properities

[Moreland, Kenneth]

I think this is one of the features that never got re-implemented after the 
major overhaul for the 3.0 release.  There is not a lot of call for this 
feature, so it has been a low priority.

  http://www.paraview.org/Bug/view.php?id=4885

-Ken


On 3/23/09 9:21 AM, N O twentypoundtr...@yahoo.com wrote:

I'm trying to change the diffusive and specular properties of the material in 
Paraview (3.4.0).  I have one of the .xml files from the wiki (SmoothPlastic 
for example), but when I am unable to browse for the material in the 
display-style-Material section of the object inspector.  Is there another way 
to apply material properties?

Thanks,
Nate




     Kenneth Moreland
***  Sandia National Laboratories
***
*** *** ***  email: kmo...@sandia.gov
**  ***  **  phone: (505) 844-8919
***  web:   http://www.cs.unm.edu/~kmorel

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Re: [Paraview] Weird cellNormals

[Eric E. Monson]

Hey David,

You can do it if you apply the Generate Surface Normals filter. That  
gives you point data Normals that can be glyphed.


Maybe someone else that is more well versed in VTK data structures can  
chime in on why cellNormals shows up in the color combo-box but is  
not really considered to be a real point or cell data attribute (i.e.  
doesn't show up in the Information pane as a Data Array).


-Eric

--
Eric E Monson
Duke Visualization Technology Group


On Mar 26, 2009, at 11:35 AM, David Doria wrote:

With this file ( http://engineeringnotes.net/BunnyBlend.vtp), I can  
color the cells by cellNormals, but I cannot apply glyph arrows  
using cellNormals. Why is that / how can I change it so that I can  
glyph the normals?


Thanks,

David
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[Paraview] Thresholding a RectilinearGrid

[Stephens, Michael M ERDC-ITL-MS]

folks,

hopefully i missed something that's already out there; but this has me
scraatching my head.

what i'm doing is simple enough.
took a Rectilinear Grid (aaa.vtr) and did a  Threshold using one of the cell
arrays.

then since i'm gonna use this later i save it out as a vtu.

when i try to read this file back into pv i get the following error:

ERROR: In
/viz/home/stephens/Kitware/ParaView/ParaView_cvs_350/ParaView3/VTK/IO/vtkXMLU
nstructuredDataReader.cxx, line 653
vtkXMLUnstructuredGridReader (0x1a0dd20): Cannot read cell connectivity from
Cells in piece 0 because the connectivity array is not long enough.


ERROR: In
/viz/home/stephens/Kitware/ParaView/ParaView_cvs_350/ParaView3/VTK/IO/vtkXMLU
nstructuredDataReader.cxx, line 653
vtkXMLUnstructuredGridReader (0x2274930): Cannot read cell connectivity from
Cells in piece 0 because the connectivity array is not long enough.


using a pv checked out a few weeks ago.

i replicated the process (read, threshold, write) in a vtkpython script using
vtk checked out yesterday (v5.5), te outpt vtu file still has the same
problem.


any one ever see this before?

-m

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Re: [Paraview] The errer about building plugin

[David E DeMarle]

Canot open file:
D:/MyReaderPlugin/MyReaderPlugin/XMLFiles/MyReaderPlugin_pvsm.xml;GUI_RESOURCE_FILES;D:/MyReaderPlugin/MyReaderPlugin/XMLFiles/MyReaderPlugin_gui.xml

This looks like the CMakeLists.txt is wrong such that the
ADD_PARAVIEW_PLUGIN Macro thinks that this is all one long filename:

error is here somewhere--
   SERVER_MANAGER_XML
${MyReaderPlugin_SOURCE_DIR}/XMLFiles/MyReaderPlugin_pvsm.xml
GUI_RESOURCE_FILES
${MyReaderPlugin_SOURCE_DIR}/XMLFiles/MyReaderPlugin_gui.xml
--

My guess is that / is confusing cmake on windows. Try using \ instead
of using quotes.

   SERVER_MANAGER_XML
${MyReaderPlugin_SOURCE_DIR}/XMLFiles/MyReaderPlugin_pvsm.xml
GUI_RESOURCE_FILES
${MyReaderPlugin_SOURCE_DIR}/XMLFiles/MyReaderPlugin_gui.xml

David E DeMarle
Kitware, Inc.
RD Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109



2009/3/24 binbin0406 binbin0...@163.com:
 Canot open file:
 D:/MyReaderPlugin/MyReaderPlugin/XMLFiles/MyReaderPlugin_pvsm.xml;GUI_RESOURCE_FILES;D:/MyReaderPlugin/MyReaderPlugin/XMLFiles/MyReaderPlugin_gui.xml
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Re: [Paraview] Weird cellNormals

[Moreland, Kenneth]

I believe the issue is that the glyph by cell data because the glyphs are 
placed on the points rather than the cells.  Thus, all cell data is removed 
from the vectors list.  Try running the cell centers filter and then apply the 
glyphs to that.  Alternatively you can run the point to cell data filter, but 
that will modify the data.

-Ken


On 3/26/09 1:06 PM, Eric E. Monson emon...@cs.duke.edu wrote:

Hey David,

You can do it if you apply the Generate Surface Normals filter. That gives 
you point data Normals that can be glyphed.

Maybe someone else that is more well versed in VTK data structures can chime in 
on why cellNormals shows up in the color combo-box but is not really 
considered to be a real point or cell data attribute (i.e. doesn't show up in 
the Information pane as a Data Array).

-Eric


--
Eric E Monson
Duke Visualization Technology Group


On Mar 26, 2009, at 11:35 AM, David Doria wrote:

With this file ( http://engineeringnotes.net/BunnyBlend.vtp), I can color the 
cells by cellNormals, but I cannot apply glyph arrows using cellNormals. Why is 
that / how can I change it so that I can glyph the normals?

Thanks,

David
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     Kenneth Moreland
***  Sandia National Laboratories
***
*** *** ***  email: kmo...@sandia.gov
**  ***  **  phone: (505) 844-8919
***  web:   http://www.cs.unm.edu/~kmorel

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[Paraview] vtkXMLPRectilinearGridWriter

[Rakesh Hammond]

Hi

I have a vtkRectilinearGrid - I would like to use the
vtkXMLPRectilinearGridWriter to write the output of data into several
pieces.  In order to do this, I do the following

writer-SetInput(grid);
writer-SetNumberOfPieces(5);
writer-Write();

What this seems to be doing is writing a myfile.pvtr correctly and defines
extents of 5 files and even writes out the names of all pieces, for example
myfile_0.vtr ... myfile_4.vtr.

Howerver, there is only one vtr file actually gets written out
(myfile_0.vtr) which contains the other 4 files as piece extents within this
file, rather than in 5 separate files as specified in the .pvtr file.  Do I
need to use MPI to write the 5 files? or am I doing this incorrectly?

Regards,
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Re: [Paraview] Thresholding a RectilinearGrid

[Berk Geveci]

I have not. Sounds like a bug. Can you provide a dataset to reproduce it?

On Thu, Mar 26, 2009 at 3:09 PM, Stephens, Michael M ERDC-ITL-MS
michael.m.steph...@usace.army.mil wrote:
 folks,

 hopefully i missed something that's already out there; but this has me
 scraatching my head.

 what i'm doing is simple enough.
 took a Rectilinear Grid (aaa.vtr) and did a  Threshold using one of the cell
 arrays.

 then since i'm gonna use this later i save it out as a vtu.

 when i try to read this file back into pv i get the following error:

 ERROR: In
 /viz/home/stephens/Kitware/ParaView/ParaView_cvs_350/ParaView3/VTK/IO/vtkXMLU
 nstructuredDataReader.cxx, line 653
 vtkXMLUnstructuredGridReader (0x1a0dd20): Cannot read cell connectivity from
 Cells in piece 0 because the connectivity array is not long enough.


 ERROR: In
 /viz/home/stephens/Kitware/ParaView/ParaView_cvs_350/ParaView3/VTK/IO/vtkXMLU
 nstructuredDataReader.cxx, line 653
 vtkXMLUnstructuredGridReader (0x2274930): Cannot read cell connectivity from
 Cells in piece 0 because the connectivity array is not long enough.


 using a pv checked out a few weeks ago.

 i replicated the process (read, threshold, write) in a vtkpython script using
 vtk checked out yesterday (v5.5), te outpt vtu file still has the same
 problem.


 any one ever see this before?

 -m


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[Paraview] paraview as a mesh editor?

[Richard Beare]

Hi,

I was wondering whether there are any options that allow some
interactive editing of mesh objects in paraview? Is this a capability
that can be included in the existing pipeline structure or is it
completely outside the design. My reason for thinking about paraview
for this application is that the meshes represent objects in 3D
images, and seeing the image while editing the mesh helps a lot.
Paraview can display a mesh and the image together,  which seems like
a reasonable starting point. Any other suggestions? So far the tools
with the right mesh manipulation facilities seem to be animation based
(blender) or CAD oriented (meshlab).

Thanks
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[Paraview] Mapper Plugin?

[Biao She]

Hi everyone.
I want to use a new mapper which isn't exist in Paraview. I saw the wiki
page at http://www.paraview.org/Wiki/Plugin_HowTo;. It seems to me that
adding a new mapper requires to add a new representation. Considering that
adding a new representation to paraview is complex and still in progress,
before I dig into it, I just wanna make sure if there is any other easier
way to add a new mapper.
Thanks.

Biao
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