[Paraview] table to points filter

[David López]

Hello, i´ve  made a script to visualize several points in paraview 4.0.1.
using table to points filter on a x,y,z file.
i´m using a 256x270 file and i need not to visualize any points that in my
x,y,z file
have a value of -9999 (null values).
i need help for do it,
thanks a lot.
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