View source for V3 Road Feature Request

== Version 3 Feature Request' ==


'''Implement AttributeType=Matrix'''

I would like to see the Matrix type implemented so that ParaView can open the files. A clear Example on how to use the Matrix AttributeMatrix. For example I have a triangular surface mesh where each triangle has a (2x1) matrix of values so that each triangle has 2 values. Currently we have to setup a hyper slab for the data array and end up with 2 data items.

    <Attribute Name="SurfaceMeshFaceLabels (Feature 0)" AttributeType="Scalar" Center="Cell">
      <DataItem ItemType="HyperSlab" Dimensions="757136 1" Type="HyperSlab" Name="SurfaceMeshFaceLabels (Feature 0)" >
        <DataItem Dimensions="3 2" Format="XML" >
          0        0
          1        1
          757136 1 </DataItem>
        <DataItem Format="HDF" Dimensions="757136 2" NumberType="Int" Precision="4" >
        Matrix_XDMF_Test.dream3d:/DataContainers/SurfaceDataContainer/FaceData/SurfaceMeshFaceLabels
        </DataItem>
      </DataItem>
    </Attribute>

    <Attribute Name="SurfaceMeshFaceLabels (Feature 1)" AttributeType="Scalar" Center="Cell">
      <DataItem ItemType="HyperSlab" Dimensions="757136 1" Type="HyperSlab" Name="SurfaceMeshFaceLabels (Feature 1)" >
        <DataItem Dimensions="3 2" Format="XML" >
          0        1
          1        1
          757136 1 </DataItem>
        <DataItem Format="HDF" Dimensions="757136 2" NumberType="Int" Precision="4" >
        Matrix_XDMF_Test.dream3d:/DataContainers/SurfaceDataContainer/FaceData/SurfaceMeshFaceLabels
        </DataItem>
      </DataItem>
    </Attribute>


I would rather do something like this:

    <Attribute Center="Cell" Name="Phases_Matrix" Type="Matrix">
      <DataItem Dimensions="2 1" Format="XML" >2 1</DataItem>
      <DataItem DataType="Int" Dimensions="757136 2" Format="HDF" Precision="4">
        Matrix_XDMF_Test.dream3d:/DataContainers/SurfaceDataContainer/FaceData/SurfaceMeshFaceLabels
      </DataItem>
    </Attribute>

Or something like that.

'''1DCoRectMesh'''

I will like to have also something like 1DCORECTMesh, for the moment I Use a 2DCORECTMesh with only 1 point in the second direction. But cant be used with cell data (paraview crash). So I use only point data.

'''Polyhedral Cells'''

It would be great to have the XDMF specification and library support polyhedral cells
http://public.kitware.com/Bug/view.php?id=14528