Allow geometry to remain constant while data arrays change
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
It would be nice to allow multiple version of a data array to be stored in a polydata. The idea being that you can have only 1 file with the geometry, and then sequentially visualize many versions of a data array without having to write the entire vtp file again (as they are often huge).
I started looking for this when writing a clustering algorithm. I have a "ClassLabel" array which stores, for each point, which class/cluster the point is associated with (an integer value). I would like to track these class associations over "time", that is, in each iteration of my clustering algorithm, I would like to save the class associations at each time point so that I could watch the evolution of the clusters in paraview. If I had 1000 iterations, it would not be feasible to write 1000 entire vtp files, but somehow storing 1000 integer arrays would be ok.