FC_GetAngle

FC_GetAngle - General Information

Overview

Task

Calculates the angle of a 2-dimensional vector to the X axis

Description

Calculates the angle of a 2-dimensional vector to the X axis in angular degrees. The result always is a value between 0° and 360°.

Interface

Input	Data type	Description
i_stV	ST_Vector2D	Vector

Output	Data type	Description
q_etDiag	GD.ET_Diag	General library-independent statement on the diagnostic. A value not equal to ET_Diag.Ok corresponds to an diagnostic message.
q_etDiagExt	ET_DiagExt	POU-specific output on the diagnostic. q_etDiag = ET_Diag.Ok -> Status message q_etDiag <> ET_Diag.Ok -> Diagnostic message

Output

Data type

Description

q_etDiag

General library-independent statement on the diagnostic.

A value not equal to ET_Diag.Ok corresponds to an diagnostic message.

q_etDiagExt

POU-specific output on the diagnostic.

q_etDiag = ET_Diag.Ok -> Status message

q_etDiag <> ET_Diag.Ok -> Diagnostic message

Return Value

Data type	Description
LREAL	Angle of the vector in degrees

Diagnostic Messages

q_etDiag	q_etDiagExt	Enumeration value	Description
OK	Ok	0	Ok

The angle has been calculated successfully.