Xdmf's 3DRectMesh maps to VTK's vtkRectilinearGrid. But, ParaView only has volume rendering representations for vtkImageData and vtkUnstructuredGrids.
So, convert your data from a rectilinear grid to an unstructured grid, and then volume render that. You could go the other way but you'd loose the variability in the cell size. One way to convert is to apply the threshold filter and keep the entire data range inside the threshold to keep all of the cells. David E DeMarle Kitware, Inc. R&D Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4909 On Wed, May 16, 2012 at 4:36 PM, Bao Kai <[email protected]> wrote: > Hi, everybody, > > Recently, we are trying to output our simulation results ( some > scalars ) with cell-centered scheme and xmdf format. > > The problem now is that with the center-to-point filter, we can get > the contour(seems not work with cell-centered representation), while > we still can not use the volume representation. > > The file header is provided as the following. We use some rectangular > mesh, while due to some requirements, the sizes of the mesh cells can > be different. So we have to output the coordinates (X, Y, Z ) of the > nodes to represent the mesh. > > Could anybody tell me how I can do the volume rendering with our data? > > Thank you very much. > > Best Regards, > Kai > > <?xml version="1.0" ?> > <!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []> > <Xdmf xmlns:xi="http://www.w3.org/2001/XInclude"; Version="2.0"> > <Domain> > <Topology TopologyType="3DRectMesh" Dimensions=" 33 33 33 "> > </Topology> > <Geometry Type="VXVYVZ"> > <!-- VX --> > <DataItem Format="XML" Dimensions=" 33 "> > 0.000 0.031 0.062 0.094 0.125 > 0.156 0.188 0.219 0.250 0.281 > 0.312 0.344 0.375 0.406 0.438 > 0.469 0.500 0.531 0.562 0.594 > 0.625 0.656 0.688 0.719 0.750 > 0.781 0.812 0.844 0.875 0.906 > 0.938 0.969 1.000 > </DataItem> > <!-- VY --> > <DataItem Format="XML" Dimensions=" 33 "> > 0.000 0.031 0.062 0.094 0.125 > 0.156 0.188 0.219 0.250 0.281 > 0.312 0.344 0.375 0.406 0.438 > 0.469 0.500 0.531 0.562 0.594 > 0.625 0.656 0.688 0.719 0.750 > 0.781 0.812 0.844 0.875 0.906 > 0.938 0.969 1.000 > </DataItem> > <!-- VZ --> > <DataItem Format="XML" Dimensions=" 33 "> > 0.000 0.031 0.062 0.094 0.125 > 0.156 0.188 0.219 0.250 0.281 > 0.312 0.344 0.375 0.406 0.438 > 0.469 0.500 0.531 0.562 0.594 > 0.625 0.656 0.688 0.719 0.750 > 0.781 0.812 0.844 0.875 0.906 > 0.938 0.969 1.000 > </DataItem> > </Geometry> > <Grid Name="soln_1PhFlw.xmf" GridType="Collection" CollectionType="Temporal"> > <Grid Name="Grid at time 25.0000000000000000 " GridType="Uniform"> > <Time Value=" 25.0000000000000000 "/> > <Topology Reference="/Xdmf/Domain/Topology[1]"/> > <Geometry Reference="/Xdmf/Domain/Geometry[1]"/> > <Attribute Name="conc" Center="cell"> > <DataItem Format="Binary" Endian="Big" DataType="Float" Precision="8" > Dimensions=" 32 32 32 "> > soln_conc1 > </DataItem> > </Attribute> > <Attribute Name="velx" Center="cell"> > <DataItem Format="Binary" Endian="Big" DataType="Float" Precision="8" > Dimensions=" 32 32 32 "> > soln_velx1 > </DataItem> > </Attribute> > <Attribute Name="vely" Center="cell"> > <DataItem Format="Binary" Endian="Big" DataType="Float" Precision="8" > Dimensions=" 32 32 32 "> > soln_vely1 > </DataItem> > </Attribute> > <Attribute Name="velz" Center="cell"> > <DataItem Format="Binary" Endian="Big" DataType="Float" Precision="8" > Dimensions=" 32 32 32 "> > soln_velz1 > </DataItem> > </Attribute> > <Attribute Name="density" Center="cell"> > <DataItem Format="Binary" Endian="Big" DataType="Float" Precision="8" > Dimensions=" 32 32 32 "> > soln_density1 > </DataItem> > </Attribute> > <Attribute Name="pressure" Center="cell"> > <DataItem Format="Binary" Endian="Big" DataType="Float" Precision="8" > Dimensions=" 32 32 32 "> > soln_pres1 > </DataItem> > </Attribute> > </Grid> > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://www.paraview.org/mailman/listinfo/paraview _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
