BIS fnc rotateVector2D: Difference between revisions

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m (Text replacement - "<code>([^<]*)\[\[([a-zA-Z][a-zA-Z0-9_]+)\]\]([^<]*) *<\/code>" to "<code>$1$2$3</code>")
m (Text replacement - "<code> *([^<|{]*) *<\/code>" to "<sqf>$1</sqf>")
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|r1= [[Array]] - New vector
|r1= [[Array]] - New vector


|x1= <code>[ [5,3], 60 ] call BIS_fnc_rotateVector2D;//Returns[-0.0980766,5.83013]</code>
|x1= <sqf>[ [5,3], 60 ] call BIS_fnc_rotateVector2D;//Returns[-0.0980766,5.83013]</sqf>


|seealso= [[BIS_fnc_crossProduct]] [[BIS_fnc_magnitudeSqr]] [[BIS_fnc_vectorFromXToY]]
|seealso= [[BIS_fnc_crossProduct]] [[BIS_fnc_magnitudeSqr]] [[BIS_fnc_vectorFromXToY]]

Revision as of 22:44, 12 July 2022

Hover & click on the images for description

Description

Description:
This function returns a 2D vector rotated a specified number of degrees around the origin.
Execution:
call
Groups:
Vectors

Syntax

Syntax:
[vector2D, angle] call BIS_fnc_rotateVector2D
Parameters:
vector2D: Array - 2D vector
angle: Number - Angle in degree
Return Value:
Array - New vector

Examples

Example 1:
[ [5,3], 60 ] call BIS_fnc_rotateVector2D;//Returns[-0.0980766,5.83013]

Additional Information

See also:
BIS_fnc_crossProduct BIS_fnc_magnitudeSqr BIS_fnc_vectorFromXToY

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

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Posted on January 21, 2015 - 14:15 (UTC)
AgentRev
Be careful when using this function in conjunction with getDir or BIS_fnc_dirTo, which return a clockwise angle, while the rotation is done counterclockwise as per trigonometric conventions.
To counter this, simply negate their output: [[0,1,0], -(getDir _object)] call BIS_fnc_rotateVector2D; [[0,1,0], -([_unit, _vehicle] call BIS_fnc_dirTo)] call BIS_fnc_rotateVector2D;