[Paraview-developers] Picking Again

[Brad King]

Hello,

Picking is getting more and more broken in the CVS version of ParaView. 
  Now creating a pick filter immediately aborts the program because the 
client-server interpreter cannot find a "SetInput" method.  Last week 
the pick filter worked but using 'p' did not.  Two weeks ago it all 
worked.  I think we need to not only fix this but add a test that 
catches all these cases.

Also, the output of the pick filter is an unstructured grid that enables 
the "volume render" display option.  Selecting this option immediately 
crashes the program because the volume rendering code uses GetScalars() 
and does not check for a NULL return.  Even if I artificially add 
scalars to the pick output with an elevation filter, the volume 
rendering option produces no image because it works only on tetrahedra. 
  Why is the volume render option even available then?

-Brad