[Paraview] xdmf polydata-points (particles)

[Eric E. Monson]

Hey Jens,

I think it should work out fine to treat them as "particles with  
attributes". Here's an example of a short time series of particles  
which each have XYZ positions, plus a scalar and a vector attribute.

-Eric

<Xdmf>
	<Domain Name="MSI">
		<Grid Name="CellTime" GridType="Collection" CollectionType="Temporal">

			<Grid Name="Cells" GridType="Uniform">
				<Time Value="0.00" />
				<Topology TopologyType="Polyvertex" NodesPerElement="30">
				</Topology>
				<Geometry GeometryType="XYZ">
					<DataItem DataType="Float" Dimensions="30 3" Format="HDF">
						TestData.h5:/iter00000000/cells/position
					</DataItem>
				</Geometry>
				<Attribute AttributeType="Scalar" Center="Node" Name="leuk_type">
					<DataItem DataType="Int" Dimensions="30 1" Format="HDF">
						TestData.h5:/iter00000000/cells/type
					</DataItem>
				</Attribute>
				<Attribute AttributeType="Vector" Center="Node"  
Name="leuk_polarization">
					<DataItem DataType="Float" Dimensions="30 3" Format="HDF">
						TestData.h5:/iter00000000/cells/polarization
					</DataItem>
				</Attribute>
			</Grid>

			<Grid Name="Cells" GridType="Uniform">
				<Time Value="0.05" />
				<Topology TopologyType="Polyvertex" NodesPerElement="30">
				</Topology>
				<Geometry GeometryType="XYZ">
					<DataItem DataType="Float" Dimensions="30 3" Format="HDF">
						TestData.h5:/iter00000001/cells/position
					</DataItem>
				</Geometry>
				<Attribute AttributeType="Scalar" Center="Node" Name="leuk_type">
					<DataItem DataType="Int" Dimensions="30 1" Format="HDF">
						TestData.h5:/iter00000001/cells/type
					</DataItem>
				</Attribute>
				<Attribute AttributeType="Vector" Center="Node"  
Name="leuk_polarization">
					<DataItem DataType="Float" Dimensions="30 3" Format="HDF">
						TestData.h5:/iter00000001/cells/polarization
					</DataItem>
				</Attribute>
			</Grid>

		</Grid>
	</Domain>
</Xdmf>

On Feb 6, 2009, at 11:26 AM, Jens wrote:

> Hi,
>
> I am using xdmf-file-format for my structured grid to visualise
> turbulent flows.
>
> Now, I have a bunch of vectors not connected to that grid, but defined
> somewhere between the grid-points. They are stored as float-XYZ
> +xyzLength in my hdf5-file (you could think of particles with
> attributes,too.)
>
> Therefore I need to add polydata-points+attributes to my xdmf-file. Is
> that possible? And if yes, how?
>
> Greetings
> Jens
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