Boolean Operations

@cory.quammen,
I would like to run this Plugin to detect interference (Intersection) between parts.
I start with a MultiBlockDataSet of unstructured grids. I run Merge Blocks on this and get an Unstructured Grid. Then I tried a Programmable Filter to run the vtkGeometryFilter on the unstructured grid and output a Polygonal mesh for use with the BooleanOperation. However, the Programmable filter output is a polygonal mesh of quads rather than hexs, and the BooleanOperation fails due to “No points/cells to operate on”.

Is there a way to convert an unstructured grid of hex elements to a Polygonal mesh of hex elements in order to use your plugin?

Thanks for any hints - I am probably not setting something in the vtkGeometryFilter, but I have no clue.

Dennis
P.S. 5 work days til retirement, but I hope to knock this out before I leave!