[Paraview] Python: opening time-series of files, adding glyphs

[Václav Šmilauer]

Hello,

I would like to automatize my routine tasks with paraview, but perhaps 
my lack of better understanding of VTK makes 
http://paraview.org/Wiki/ParaView/Python_Scripting not as instructive as 
I would like to. Could I get short commands which will do the following?

1. Open a time-series of files with embedded number (File - Open - 
fileName...vtu). The OpenDataFile function does not hadle the ... 
ellipsis. I used the glob.glob module instead, but it does not sort 
numerically; moreover, repeated calls to OpenDataFile do not create new 
time points.

2. Once the pipeline is ready I would like to add Arrow/Spheres/... 
glyphs and make the original white points invisible.

Thanks for help,

Vaclav