Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Due to the current gap in continued funding from the U.S. National Science Foundation (NSF), the NSF Unidata Program Center has temporarily paused most operations. See NSF Unidata Pause in Most Operations for details.
Hi Tim- Tim Johnson wrote:
Hello,We are interested in using IDV to visualize results from 3D finite element models which are arranged on an unstructured tetrahedral mesh. We can't use netCDF to store the results and visualize with IDV because there is no standard for unstructured grids in netCDF. Has anyone out there used IDV to visualize data arranged on an unstructured mesh?Thanks for any pointers. Tim Johnson Energy Resource Recovery and Management Idaho National Laboratory
I don't know of anyone who has gotten this working. The underlying VisAD data model has support for unstructured grids so in theory, the IDV could use that at some point. We have been waiting for a consensus to build on the netCDF conventions for these grids, but that has been slow to evolve. One could write a custom data source to read in these grids, perhaps as a subclass of the GridDataSource and create the necessary VisAD structures in there. There might be some substantial changes needed for the slicing and dicing code that we use now for gridded data in the GridUtil classes. For the most part, these assume a GriddedXDSet as the domain of the grid. These would end up being IrregularXDSets with a Delaunay class to define the structure. If you'd like to tackle this and need some help, let us know. Don ************************************************************* Don Murray UCAR Unidata Program dmurray@xxxxxxxxxxxxxxxx P.O. Box 3000 (303) 497-8628 Boulder, CO 80307 http://www.unidata.ucar.edu/staff/donm *************************************************************
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