enum OdDgFunctionOperatorType { kSqrt = 0, kLimit = 1, kSin = 2, kMax = 3, kMin = 4, kInteger = 5, kNumeric = 6, kDistance = 7, kAngle = 8, kAbs = 9, kACos = 10, kASin = 11, kATan = 12, kCos = 13, kTan = 14, kFloor = 15, kCeil = 16, kLog = 17, kLog10 = 18, kTrunc = 19, kRound = 20, kOdd = 21, kSign = 22, kDegrees = 23, kArea = 24 };