BIS fnc relPos

1.00

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Description

Description:

/************************************************************
	Relative Position

Parameters: [object or position, distance, direction]

Returns a position that is a specified distance and compass
direction from the passed position or object.

Example: [player, 5, 100] call BIS_fnc_relPos
************************************************************/

(Placeholder description extracted from the function header by BIS_fnc_exportFunctionsToWiki)

Execution:

call

Groups:

Uncategorised

Syntax

Syntax:

Syntax needed

Return Value:

Return value needed

Examples

Example 1:

//Lawman_Actual: "Will Create a nice spiral of flares from the player at 30 degree intervals and increasing distance" for "_x" from 0 to 1440 step 30 do{ _distance = (_x/100)*2; _targetPos = [(getPos player), _distance, _x] call BIS_fnc_relPos; _targetPos set [2,0]; _flare = "F_40mm_White" createVehicle _targetPos; sleep 0.25; };

Additional Information

See also:

getPos

Notes

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Posted on January 7, 2016 - 19:26 (UTC)

Lawman Actual

The function appears to work in two dimensions, and as such can be used to find the position of a target relative to the player if bearing and distance are known. However, if there is a significant change in elevation between yourself and the target, the distance registered on a ragefinder (which is measuring a 3 dimensional straight line) will always be larger than the two-dimensional value required for BIS_fnc_relPos and as such air-strikes and ordnance called in using such a function can miss by several hundred metres in extreme cases. Currently searching for a method which incorporates the azimuth of the rangefinder in calculation.

Posted on March 25, 2017 - 20:36 (UTC)

Feint

Since Arma 3 v1.55.133361, an alternative syntax was added to getPos that allows one to get a position that is a given distance and heading away from original object or position, the equivalent of BIS_fnc_relPos

Example:
_relPos = _caller getPos [(abs _boundingBoxDimensions) -0.2, _direction]; // RESULT: 0.0021 ms

is equal to:
_relPos = [_caller, (abs _boundingBoxDimensions) -0.2, _direction] call BIS_fnc_relPos; // RESULT: 0.554324 ms