Ok. I get it. Another question is, if I load an unstructured data that contains a vector variable (i.e., three components of velocity), is the nodal solution also a tuple of three values?
> On Jun 16, 2016, at 9:53 AM, John Peterson <[email protected]> wrote: > > > > On Wed, Jun 15, 2016 at 9:56 PM, 张江 <[email protected] > <mailto:[email protected]>> wrote: > Hi, > > I am currently doing the work about vtk unstructured data using libmesh. But > I found that vtk_io just provided some functions about mesh, and the point > data was not used. > > That's right, VTKIO::read() currently reads the nodes and elements using a > vtkXMLUnstructuredGridReader, but does not read solution values. > > If you are doing something where you need to read in solution values, your > best bet is to use the Exodus file type instead of VTK, as it is more fully > supported. > > > For example, in exodusII_io, there is a function copy_nodal_solution() which > can be called for further obtaining the node data values. > So is there possibility that the same function can be implemented in vtk_io? > How to do this? > > Yes it's possible, but you will have to implement it yourself after > researching the appropriate VTK APIs. I'd start by making sure we can read > the solution files written by e.g. VTKIO(mesh).write_equation_systems > ("out.pvtu", equation_systems), which internally calls > VTKIO::write_nodal_data(). > > -- > John ------------------------------------------------------------------------------ What NetFlow Analyzer can do for you? Monitors network bandwidth and traffic patterns at an interface-level. Reveals which users, apps, and protocols are consuming the most bandwidth. Provides multi-vendor support for NetFlow, J-Flow, sFlow and other flows. Make informed decisions using capacity planning reports. http://pubads.g.doubleclick.net/gampad/clk?id=1444514421&iu=/41014381 _______________________________________________ Libmesh-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/libmesh-users
