並列VTK PVTUのサンプル ( paralell VTU )

並列VTK形式 （VTU形式）

xml形式のVTUデータは並列用にも出力できます。小さいのを手で書くのは簡単なので作ってみた。

以下に示すように

　　parallel.pvtu
　　material1.vtu
　　material2.vtu

のファイルを同じディレクトリに用意する。　あとはparaviewでparallel.pvtuを開いてあげれば表示できる。



------------------------------------------------------------------------------------------------------------------------------
paralell.pvtu
------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0"?>

<VTKFile type="PUnstructuredGrid" version="0.1" byte_order="LittleEndian">
<PUnstructuredGrid GhostLevel="0">
<PPoints>
  <PDataArray type="Float32" Name="Position" NumberOfComponents="3"/>
</PPoints>
<PCells>
  <PDataArray type="Int32" Name="connectivity" NumberOfComponents="1"/>
  <PDataArray type="Int32" Name="offsets"      NumberOfComponents="1"/>
  <PDataArray type="UInt8" Name="types"        NumberOfComponents="1"/>
</PCells>
<PCellData Scalars="Material">
    <PDataArray type="Int32" Name="Material" NumberOfComponents="1"/>   
</PCellData>
<Piece Source="material1.vtu"/>
<Piece Source="material2.vtu"/>
</PUnstructuredGrid>
</VTKFile>

------------------------------------------------------------------------------------------------------------------------------
material1.vtu
------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0"?>

<VTKFile type="UnstructuredGrid" version="0.1" byte_order="LittleEndian">
<UnstructuredGrid>
<Piece NumberOfPoints="3" NumberOfCells="1">
<Points>
  <DataArray type="Float32" Name="Position" NumberOfComponents="3" format="ascii">
    0.0    0.0    0.0
    1.0    1.0    0.0
    0.0    1.0    0.0
  </DataArray>
</Points>
<Cells>
  <DataArray type="Int32" Name="connectivity" NumberOfComponents="1" format="ascii">
    0    1    2       
  </DataArray>
  <DataArray type="Int32" Name="offsets" NumberOfComponents="1" format="ascii">
    3   
  </DataArray>
  <DataArray type="UInt8"  Name="types" NumberOfComponents="1" format="ascii">
    5
  </DataArray>
</Cells>
<CellData Scalars="Material">
  <DataArray type="Int32" Name="Material" NumberOfComponents="1" format="ascii">
    1   
  </DataArray>
</CellData>
</Piece>
</UnstructuredGrid>
</VTKFile>

------------------------------------------------------------------------------------------------------------------------------
material2.vtu

------------------------------------------------------------------------------------------------------------------------------
<?xml version="1.0"?>

<VTKFile type="UnstructuredGrid" version="0.1" byte_order="LittleEndian">
<UnstructuredGrid>
<Piece NumberOfPoints="3" NumberOfCells="1">
<Points>
  <DataArray type="Float32" Name="Position" NumberOfComponents="3" format="ascii">
    0.0    0    0
    1.0    0.0    0
    1.0    1.0    0
  </DataArray>
</Points>
<Cells>
  <DataArray type="Int32" Name="connectivity" NumberOfComponents="1" format="ascii">
    0    1    2   
  </DataArray>
  <DataArray type="Int32" Name="offsets" NumberOfComponents="1" format="ascii">
    3
  </DataArray>
  <DataArray type="UInt8"  Name="types" NumberOfComponents="1" format="ascii">
    5
  </DataArray>
</Cells>
<CellData Scalars="Material">
  <DataArray type="Int32" Name="Material" NumberOfComponents="1" format="ascii">
    2   
  </DataArray>
</CellData>
</Piece>
</UnstructuredGrid>
</VTKFile>

こんなのが出るはず。青いのがmateral1で赤いのが2。