lineIntersects

1.62

1.00

0.50

GAGlobal

Hover & click on the images for description

Description

Description:

Checks for object intersection with a virtual line between two positions. The alternative syntax does multiple checks at once, faster than multiple calls.

ⓘ

Does not work under water.
Max harcoded distance is 1000m.

Groups:

Math - Geometry

Syntax

Syntax:: lineIntersects [begPos, endPos, objIgnore1, objIgnore2]
Parameters:: begPos: Array format PositionASL
: endPos: Array format PositionASL
: objIgnore1: Object - (Optional, default objNull) object to ignore. When testing intersection from an object/unit/vehicle, pass that object here to prevent intersection inside of the object
: objIgnore2: Object - (Optional, default objNull) another object to ignore. When testing intersection of a line between two objects, pass the second object here to prevent intersection inside of it being reported
Return Value:: Boolean - true if an intersection happens with an object (not with terrain)

2.20

Alternative Syntax

Syntax:

lineIntersects [element1, element2, ...]

Parameters:

elementN: Array format [begPos, endPos, objIgnore1, objIgnore2]:

begPos: Array format PositionASL
endPos: Array format PositionASL
objIgnore1: Object - (Optional, default objNull) object to ignore. When testing intersection from an object/unit/vehicle, pass that object here to prevent intersection inside of the object
objIgnore2: Object - (Optional, default objNull) another object to ignore. When testing intersection of a line between two objects, pass the second object here to prevent intersection inside of it being reported

Return Value:

Array format [result1, result2, ...] - true if an intersection happens with an object (not with terrain) for the Nth element

Examples

Example 1:: private _hasStraightLineToChopper = lineIntersects [eyePos player, aimPos chopper, player, chopper];
Example 2:: private _enemies = units opfor; private _enemyDataArray = _enemies apply { [eyePos player, aimPos _x, player, _x] }; private _result = lineIntersects _enemyDataArray;

Additional Information

See also:: lineIntersectsSurfaces intersect terrainIntersect terrainIntersectASL terrainIntersectAtASL lineIntersectsWith lineIntersectsObjs cursorObject cursorTarget checkVisibility

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

Lou Montana - c

Posted on May 31, 2012 - 10:46 (UTC)

Please note the difference: