I am trying to develop an efficient method for writing different vtk
unstructured grid datasets which change with time in a single vtk file.
In particular, we have an in-house Boundary Element solver and we would like to save element and node information (unstructured grid DataSets) in a single file. Then, by using vtk methods we would like to visualise the results.
The main question I would like to ask is whether any of you have developed similar vtk applications and what would be the optimal way. I found that multiblocks can be saved in either exodus or vtm file. What is the difference? Is there any other way?
How could I save different time steps of these multiblocks? Is there any simple example of creating such a file? Moreover, I found that vtkHierrarchicalBoxDataSet is for Adaptive Meshing. Is there any example?
Lastly, how I could extract a specific block from a multiblock by giving its name. In the following code I have managed to extract a certain block by giving its index only. Is it possible to call a block from each name?
I am interested in a similar problem. I have some ensight Gold files that I want to convert to a vtk/paraview format, but the files don't have time information and I would like to include that.
Were you able to construct a solution to include the time information into each file?