I applied the programmable filter to two active sources which both contain a scalar field called energy:
field1 = source1.PointData[“energy”]
field2 = source2.PointData[“energy”]
err = (field1 - field2)/field1
I want to evaluate the error “err” at some points that I read from file and then visualize the error at these points.
If I do
output.PointData.append(err , “errEnergy”)
I get a new field that contains the entire domain, not only the sampled points. However, I want to get something like a “scatter plot”.
How can I do this? Is programmable filter the right tool for me?