atan2: Difference between revisions
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Lou Montana (talk | contribs) m (Text replacement - "<code> +" to "<code>") |
Lou Montana (talk | contribs) m (Text replacement - "\| *((\[\[.*\]\],? ?)+) * \}\}" to "|seealso= $1 }}") |
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[[if]] (_dir < 0) [[then]] {_dir = 360 + _dir}; //_dir range from 0 to 360</code> | [[if]] (_dir < 0) [[then]] {_dir = 360 + _dir}; //_dir range from 0 to 360</code> | ||
| [[atan]], [[tan]], [[sin]], [[cos]], [[asin]], [[acos]], [[rad]], [[pi]], [[vectorCos]], [[getPos]], [[getRelPos]], [[Math Commands]] | |seealso= [[atan]], [[tan]], [[sin]], [[cos]], [[asin]], [[acos]], [[rad]], [[pi]], [[vectorCos]], [[getPos]], [[getRelPos]], [[Math Commands]] | ||
}} | }} | ||
Revision as of 23:22, 16 February 2021
Description
- Description:
- Description needed
- Groups:
- Math - Geometry
Syntax
- Syntax:
- Syntax needed
- Parameters:
- x: Number
- y: Number
- Return Value:
- Return value needed
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 - Example 3:
- Get relative direction from _obj1 to _obj2:
_xy = _obj1 worldToModel getPosASL _obj2; _dir = (_xy select 0) atan2 (_xy select 1); //_dir range from -180 to +180 if (_dir < 0) then {_dir = 360 + _dir}; //_dir range from 0 to 360
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 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.