UndefinedMetric  1787 magick/command.c     metric=UndefinedMetric;
UndefinedMetric  2136 magick/command.c                 if (metric == UndefinedMetric)
UndefinedMetric  2250 magick/command.c   if (metric != UndefinedMetric)
UndefinedMetric   515 magick/compare.c     case UndefinedMetric:
UndefinedMetric   921 magick/enum_strings.c     case UndefinedMetric:
UndefinedMetric   946 magick/enum_strings.c     metric_type=UndefinedMetric;