BIS fnc rotateVector2D: Difference between revisions
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{{RV|type=function | |||
|game1= arma2 | |||
|version1= 1.00 | |||
| | |game2= arma2oa | ||
|version2= 1.50 | |||
|1.00 | |game3= tkoh | ||
|version3= 1.00 | |||
| | |game4= arma3 | ||
|version4= 0.50 | |||
|gr1= Vectors | |||
This function returns a 2D vector rotated a specified number | |descr= This function returns a 2D vector rotated a specified number of degrees around the origin. | ||
of degrees around the origin. | |||
|s1= [vector2D, angle] call [[BIS_fnc_rotateVector2D]] | |||
| | |p1= vector2D: [[Array]] - 2D vector | ||
| | |p2= angle: [[Number]] - angle in degree | ||
| | |r1= [[Array]] - new vector | ||
|x1= < | |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]] | ||
}} | |||
{{Note | |||
|user= AgentRev | |||
|timestamp= 20150121141500 | |||
|text= 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.<br> | |||
To counter this, simply negate their output: | |||
<sqf> | |||
[[0,1,0], -(getDir _object)] call BIS_fnc_rotateVector2D; | |||
[[0,1,0], -([_unit, _vehicle] call BIS_fnc_dirTo)] call BIS_fnc_rotateVector2D; | |||
</sqf> | |||
}} | }} | ||
Latest revision as of 16:39, 8 November 2023
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:
Additional Information
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
- Posted on Jan 21, 2015 - 14:15 (UTC)
-
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: