Operator Reference

HALCON Operator Reference / Tuple / Arithmetic

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tuple_atan2tuple_atan2TupleAtan2TupleAtan2tuple_atan2 (Operator)

tuple_atan2tuple_atan2TupleAtan2TupleAtan2tuple_atan2 — Compute the arctangent of a tuple for all four quadrants.

Signature

tuple_atan2( : : Y, X : ATan)

Herror tuple_atan2(double Y, double X, double* ATan)

Herror T_tuple_atan2(const Htuple Y, const Htuple X, Htuple* ATan)

void TupleAtan2(const HTuple& Y, const HTuple& X, HTuple* ATan)

HTuple HTuple::TupleAtan2(const HTuple& X) const

static void HOperatorSet.TupleAtan2(HTuple y, HTuple x, out HTuple ATan)

HTuple HTuple.TupleAtan2(HTuple x)

def tuple_atan2(y: MaybeSequence[Union[float, int]], x: MaybeSequence[Union[float, int]]) -> Sequence[float]

def tuple_atan2_s(y: MaybeSequence[Union[float, int]], x: MaybeSequence[Union[float, int]]) -> float

Description

tuple_atan2tuple_atan2TupleAtan2TupleAtan2tuple_atan2 computes the arctangent of the input tuples YYYyy/XXXxx while treating all four quadrants correctly. The arctangent is always returned as a floating point number in ATanATanATanATanatan. The angles in ATanATanATanATanatan are represented in radians. The arctangent of a string is not allowed.

Exception: Empty input tuples

If either or both of the input tuples are empty, the operator returns an empty tuple.

HDevelop In-line Operation

HDevelop provides an in-line operation for tuple_atan2tuple_atan2TupleAtan2TupleAtan2tuple_atan2, which can be used in an expression in the following syntax:

ATan := atan2(Y, X)

Execution Information

• Multithreading type: independent (runs in parallel even with exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

YYYyy (input_control)  number(-array) → HTupleMaybeSequence[Union[float, int]]HTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)

Input tuple of the y-values.

XXXxx (input_control)  number(-array) → HTupleMaybeSequence[Union[float, int]]HTupleHtuple (real / integer) (double / int / long) (double / Hlong) (double / Hlong)

Input tuple of the x-values.

ATanATanATanATanatan (output_control)  angle.rad(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)

Arctangent of the input tuple.

Alternatives

tuple_atantuple_atanTupleAtanTupleAtantuple_atan, tuple_asintuple_asinTupleAsinTupleAsintuple_asin, tuple_acostuple_acosTupleAcosTupleAcostuple_acos

See also

tuple_tantuple_tanTupleTanTupleTantuple_tan, tuple_tanhtuple_tanhTupleTanhTupleTanhtuple_tanh

Module

Foundation

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