RuleDist

 Calculate the ditance between two rules in each input dimension. The unit
 of measurement is "steps".
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 Parameters
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           input(i) --name
                    |-range
                    |-mf(j)--name
                           |-type
                           |-params
                           |-paramsy
                           |-RPx
                           |-RPy

            rule1--antecedent(i)
                 |-consequent(j)
                 |-weight
                 |-connection

            rule2--antecedent(i)
                 |-consequent(j)
                 |-weight
                 |-connection