The thing that jumps out at me is missing the Dimensions tag on the function
itself. For instance, we create our grids as:
<DataItem Dimensions="8 47 373 3" Function="JOIN($0,
$1, $2)" ItemType="Function">
<DataItem Dimensions="8 47 373" Format="HDF"
NumberType="Float" Precision="8">grid.h5:/Domain_00001/x</DataItem>
<DataItem Dimensions="8 47 373" Format="HDF"
NumberType="Float" Precision="8">grid.h5:/Domain_00001/y</DataItem>
<DataItem Dimensions="8 47 373" Format="HDF"
NumberType="Float" Precision="8">grid.h5:/Domain_00001/z</DataItem>
</DataItem>
We also use a comma between the JOIN, not a semicolon -- not sure if that
matters or not.
If you change your JOIN to look like:
<DataItem Dimensions="2 2 2" ItemType="Function" Function="JOIN($0,
$1)">
<DataItem DataType="Float" Dimensions="2 2" Format="HDF"
Precision="4">EvolvingSquare_01.h5:Coordinates</DataItem>
<DataItem DataType="Float" Dimensions="2 2" Format="HDF"
Precision="4">EvolvingSquare_02.h5:Coordinates</DataItem>
</DataItem>
does that fix the problem?
Tim
________________________________
From: ParaView <paraview-boun...@paraview.org> on behalf of dl...@cornell.edu
<dl...@cornell.edu>
Sent: Monday, September 19, 2016 10:20 PM
To: paraview@paraview.org
Subject: [Paraview] Function JOIN of XDMF in Paraview
Hi,
I am now working on a project which needs the use of JOIN function in xdmf to
concatenate the data from multiple h5 files and visualize those files in
Paraview. I have created a small trial to test this JOIN function. I create two
h5 files, each of which contains two points of a unit square. For each point, I
assign a value to it as its attribute. Then I write one xdmf file, which uses
function JOIN to concatenate the dataset from two h5 files. But when I load my
xdmf file into Paraview, Paraview just crashes directly. This is the xdmf file
I have written:
<?xml version="1.0" encoding="utf-8"?>
<Xdmf xmlns:xi="http://www.w3.org/2001/XInclude"; Version="2.97">
<Domain>
<Grid Name="Grid">
<Geometry Type="XY">
<DataItem ItemType="Function" Function="JOIN($0 ; $1)">
<DataItem DataType="Float" Dimensions="2 2" Format="HDF"
Precision="4">EvolvingSquare_01.h5:Coordinates</DataItem>
<DataItem DataType="Float" Dimensions="2 2" Format="HDF"
Precision="4">EvolvingSquare_02.h5:Coordinates</DataItem>
</DataItem>
</Geometry>
<Topology TopologyType="2DSMesh" NumberOfElements="4 2"/>
<Attribute Center="Node" Name="Attributes" Type="None">
<DataItem ItemType="Function" Function="JOIN($0 ; $1)">
<DataItem DataType="Float" Dimensions="2" Format="HDF"
Precision="8">EvolvingSquare_01.h5:Attributes</DataItem>
<DataItem DataType="Float" Dimensions="2" Format="HDF"
Precision="8">EvolvingSquare_02.h5:Attributes</DataItem>
</DataItem>
</Attribute>
</Grid>
</Domain>
</Xdmf>
To avoid the problem of h5 file itself, I have also written two separate xdmf
files for each h5 file and load each xdmf file separately into Paraview. I can
successfully load these two h5 files separately into Paraview, so the problem
might no be my h5 files. Can anyone help me with this problem? Are there any
mistakes of my ways of using JOIN function in xdmf?
Thanks
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