[Paraview] Multiple polydata in same pipeline -- don't always seem centered around same origin

[Sohail Shafii]

Hi,


I have been writing some code that basically computes points on certain portions of line segments (kind of line intersection points), and I can't help but notice that when I zoom in, these points appear "disconnected" from lines the should lie on top of.

To illustrate my point, I have created a simple example using stock paraview filters (see attachments).  In centroid_zoomed_out, I basically create a line using the line source filter, then using a programmable filter I compute its centroid and create a vertex.  When I render both pieces of polydata, the result looks correct when one is zoomed out.


But zoomed-in (centroid_zoomed_in), it appears to be disconnected from the line.  Is there any reason for this? I have never rendered points and lines together in paraview, but I would expect them to exist around the same origin.


Thanks, Sohail
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