atan2
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Description
- Description:
- ArcTangent of x/y. Used to determine the angle of a vector [x,y]. Result in Degrees.
Note that this command can handle y being 0, unlike when using atan, and will return 90 - Groups:
- Uncategorised
Syntax
Examples
- Example 1:
_xy = [5,3]; _degrees = (_xy select 0) atan2 (_xy select 1); //59.0362
- Example 2:
- Get direction from _obj1 to _obj2:
_vd = getPosASL _obj2 vectorDiff getPosASL _obj1; _dir = (_vd select 0) atan2 (_vd select 1); //_dir range from -180 to +180 if (_dir < 0) then {_dir = 360 + _dir}; //_dir range from 0 to 360
Additional Information
- See also:
- atanMath Commands
Notes
-
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Notes
- Posted on 08:00, 18 November 2009
- KeV
-
To get the direction of an object from the player:
_dir = ((getPos _obj select 0) - (getPos player select 0)) atan2 ((getPos _obj select 1) - (getPos player select 1)); //_dir will be from -180 to 180.
If positive values are needed then use:if (_dir < 0) then {_dir = _dir + 360};
Or just use BIS_fnc_dirTo directly.
Bottom Section
Categories:
- Scripting Commands
- Introduced with Operation Flashpoint version 1.00
- Operation Flashpoint: New Scripting Commands
- Operation Flashpoint: Scripting Commands
- Command Group: Uncategorised
- Scripting Commands OFP 1.96
- Scripting Commands OFP 1.46
- Scripting Commands ArmA
- Command Group: Math
- Scripting Commands ArmA2
- Scripting Commands Arma 3
- Scripting Commands Take On Helicopters