[Paraview] Xdmf format and the contour plot

[wide li]

Hi Tim,

Thanks very much for the hint. 

I have tried both approaches.

1. Amendmenting of my Xdmf and HDF5 files using "Node" data as the input. 

2. Applying CellDataToPointData filter first as ParaView reads in "Cell" data.

Unfortunately, in either way, I could not have the Contour and Streamline filters working.

I wonder do I still miss some key ingredient?

Li



Date: Wed, 23 Dec 2015 18:52:33 -0500
From: tim.gallagher at gatech.edu
To: wideli at hotmail.com
CC: paraview at paraview.org
Subject: Re: [Paraview] Xdmf format and the contour plot

Apply a CellDataToPointData filter after you load your dataset and before you try to use the contour or stream line filters. They both require node-based data but you are providing cell-centered data.

Tim

From: "wide li" <wideli at hotmail.com>
To: paraview at paraview.org
Sent: Wednesday, December 23, 2015 6:22:20 PM
Subject: [Paraview] Xdmf format and the contour plot




Hi there,

I have a basic question about the contour and stream line plots in ParaView. 

When I load my Xdmf file to the ParaView, neither of the contour nor streamline filters does function. 

I wonder WHY it is so and HOW I can solve this problem. At the moment, I really have no clue at all. The ParaView (5.0.0-RC1) is compiled and installed on Mac (El Capitan). In ccmake, I switched on 

PARAVIEW_BUILD_QT_GUI                 ON                                           
PARAVIEW_ENABLE_CATALYST         ON                                           
PARAVIEW_ENABLE_FFMPEG            ON                                           
PARAVIEW_ENABLE_PYTHON            ON 
PARAVIEW_USE_MPI                           ON
VTK_USE_LARGE_DATA                      ON.


Chosen by ParaView itself, all Modules are not activated except, 

Module_vtkWrappingPythonCore     ON.


Thanks very much in advance.

Li


PS. Here is my Xdmf file:

<?xml version="1.0" ?>
<!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []>
<Xdmf Version="2.0">
 <Domain>
   <Grid Name="mesh" GridType="Uniform">
     <Topology TopologyType="3DSMesh" NumberOfElements="14 17 33"/>
     <Geometry GeometryType="X_Y_Z">
       <DataItem Dimensions="14 17 33" NumberType="Float" Precision="8" Format="HDF">
        ./../DATA/Coords.h5:/X
       </DataItem>
       <DataItem Dimensions="14 17 33" NumberType="Float" Precision="8" Format="HDF">
        ./../DATA/Coords.h5:/Y
       </DataItem>
       <DataItem Dimensions="14 17 33" NumberType="Float" Precision="8" Format="HDF">
        ./../DATA/Coords.h5:/Z
       </DataItem>
     </Geometry>
     <Attribute Name="B" AttributeType="Vector" Center="Cell">
       <DataItem Dimensions="13 16 32 3" Function="JOIN($0, $1, $2)" ItemType="Function">
     <DataItem Dimensions="13 16 32" NumberType="Float" Precision="4" Format="HDF">
           ./../DATA/Field0.h5:/Br
     </DataItem>
     <DataItem Dimensions="13 16 32" NumberType="Float" Precision="4" Format="HDF">
           ./../DATA/Field0.h5:/Bt
     </DataItem>
     <DataItem Dimensions="13 16 32" NumberType="Float" Precision="4" Format="HDF">
           ./../DATA/Field0.h5:/Bp
     </DataItem>
       </DataItem>
     </Attribute>
   </Grid>
 </Domain>
</Xdmf>
 		 	   		  

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