atan2: Difference between revisions

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[[Category:Scripting Commands ArmA2|{{uc:{{PAGENAME}}}}]]
[[Category:Scripting Commands Arma 3|{{uc:{{PAGENAME}}}}]]
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[[Category:Scripting_Commands_Take_On_Helicopters|{{uc:{{PAGENAME}}}}]]

Revision as of 12:44, 25 March 2013

Hover & click on the images for description

Description

Description:
ArcTangent of x/y. Used to determine the angle of a vector [x,y]. Result in Degrees.
Groups:
Uncategorised

Syntax

Syntax:
Number = x atan2 y
Parameters:
x: Number
y: Number
Return Value:
Number

Examples

Example 1:
_xy=[5,3]; _degrees= (_xy select 0) atan2 (_xy select 1)
returns 59.0362

Additional Information

See also:
Math Commands

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note

Notes

To get the direction of an object from the player:
_direction = ((getpos object select 0) - (getpos player select 0)) atan2 ((getpos object select 1) - (getpos player select 1));
_direction will be from -180 to 180
If positive values are needed then use:
if(_direction < 0) then {_direction = _direction + 360};

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