Add the minimum scalar value to the result of the InvertOperator
Add the minimum scalar value to the result of the InvertOperator

Without it, all results would be shifted so the minimum was 0.

mathturtle/tomviz,OpenChemistry/tomviz,mathturtle/tomviz,OpenChemistry/tomviz,mathturtle/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz