    case USER_UNIT_NONE:
    case USER_UNIT_METRIC:
      if (linearmeasure == 0.001f) {
        unitname = "millimeter";
      }
      else if (linearmeasure == 0.01f) {
        unitname = "centimeter";
      }
      else if (linearmeasure == 0.1f) {
        unitname = "decimeter";
      }