Difference of (or selection on) mostly identical grids

ParaView Support
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In that case, the following sequence of filters might do what you want.

  1. Use the Cell Centers filter on the data set where you want to get the cell data. Make sure to turn on the Vertex Cells property of the filter. This will create a bunch of point cells located at the center of each of the cells in your input data.
  2. Use the Resample With Dataset filter as described before, except use the cell centers result instead of the data where you actually want the data.
  3. Use the Point Data to Cell Data filter on the output of resample with dataset. Normally, this does an averaging of point data to the cell data, but because the data only has one point per cell, it will just do a simple copy.
  4. Select both the data set where you want the data to go and the output of point data to cell data and then add the Append Attributes filter. This will copy the cell data you generated on those points at the cell centers back to the data structure where you really want it.
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