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XMDF Grid>Geometry>DataItem> reference to ASCII file

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Old   August 6, 2018, 05:39
Default XMDF Grid>Geometry>DataItem> reference to ASCII file
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Bastian
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Dear all,


consider the xdmf file below.

How can I replace the explicit x-vector `0.0 1.0 2.0 3.0` in the gometry block by a reference to an ASCII file `x.dat`?

I searched the internet including the xdmf wiki but none of what I tried worked.

Code:
<Xdmf Version="2.0">
  <Domain>
    
    <Grid Name="mesh" GridType="Uniform">
      
      <Topology TopologyType="3DRectMesh" NumberOfElements="3 2 4"/>              <!-- NumberOfElements="Nz Ny Nx" -->
      
      <Geometry GeometryType="VXVYVZ">
        <DataItem Dimensions="4" NumberType="Float" Precision="4" Format="XML">   <!-- Dimension="Nx" -->
          0.0 1.0 2.0 3.0
        </DataItem>
        <DataItem Dimensions="2" NumberType="Float" Precision="4" Format="XML">   <!-- Dimension="Ny" -->
          0.0 1.5708
        </DataItem>
        <DataItem Dimensions="3" NumberType="Float" Precision="4" Format="XML">   <!-- Dimension="Nz" -->
          0.0 1.0 2.0
        </DataItem>
      </Geometry>
      
      <Attribute Name="SomeNodeData" AttributeType="Scalar" Center="Node">           <!-- Center="Node"               -->
        <DataItem Dimensions="3 2 4" NumberType="Float" Precision="4" Format="XML">  <!-- NumberOfElements="Nz Ny Nx" -->
          <!-- Nz blocks underneath one another, each having Nx columns, Ny rows -->
          0.0 0.0 0.0 8.0
          8.0 8.0 8.0 8.0
          
          1.0 1.0 1.0 8.0
          1.0 1.0 1.0 8.0
          
          2.0 2.0 2.0 8.0
          2.0 2.0 2.0 8.0
        </DataItem>
      </Attribute>

      <Attribute Name="SomeCellData" AttributeType="Scalar" Center="Cell">           <!-- Center="Cell"               -->
        <DataItem Dimensions="2 1 3" NumberType="Float" Precision="4" Format="XML">  <!-- NumberOfElements="Nz Ny Nx" -->
          <!-- Nz blocks underneath one another, each having Nx columns, Ny rows -->
          0.0 1.0 2.0
          
          3.0 4.0 5.0
        </DataItem>
      </Attribute>
      
    </Grid>
  
  </Domain>
</Xdmf>
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