Using a Picker to get grid index inside MultiBlockDataSet

Hi,

I’ve been trying to figure this out for a while without success. I have multiple StructuredGrids in a MultiBlockDataSet with associated PolyData/Mapper/Actor and when I pick a cell via CellPicker I would like it to show the block which contains the cell (or point).

The best I have come up with is to map the global cell index to the block index and use a function to lookup the index.

Seems that there should already be an implementation but I can’t seem to find it. Does anyone know a solution?

Thanks!