Difference between revisions of "lineIntersectsSurfaces"

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m (Text replacement - "{{Command " to "{{RV|type=command ")
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|p8= LOD1 (Optional): [[String]] (added in v1.51.131920) - Primary [[LOD]] to look for intersection. Default: "VIEW"
 
|p8= LOD1 (Optional): [[String]] (added in v1.51.131920) - Primary [[LOD]] to look for intersection. Default: "VIEW"
 
|p9= LOD2 (Optional): [[String]] (added in v1.51.131920) - Secondary [[LOD]] to look for intersection. Default: "FIRE"
 
|p9= LOD2 (Optional): [[String]] (added in v1.51.131920) - Secondary [[LOD]] to look for intersection. Default: "FIRE"
|p10= returnUnique (Optional): [[Boolean]] (added in v1.69.140138) - When [[false]], all intersections in the same object are included not just the 1st one. Default: [[true]] |PARAMETER10=
+
|p10= returnUnique (Optional): [[Boolean]] (added in v1.69.140138) - When [[false]], all intersections in the same object are included not just the 1st one. Default: [[true]]
  
 
| [[Array]] of intersections in format [<nowiki/>[intersectPosASL, surfaceNormal, intersectObj, parentObject],...] where:
 
| [[Array]] of intersections in format [<nowiki/>[intersectPosASL, surfaceNormal, intersectObj, parentObject],...] where:

Revision as of 18:14, 29 January 2021

Hover & click on the images for description

Description

Description:
Description needed
Groups:
Math - Geometry

Syntax

Syntax:
Syntax needed
Parameters:
[begPosASL, endPosASL, ignoreObj1, ignoreObj2, sortMode, maxResults, LOD1, LOD2]: Array
begPosASL: PositionASL - virtual line start
endPosASL: PositionASL - virtual line end
ignoreObj1 (Optional): Object - first object to ignore or objNull: Default: objNull
ignoreObj2 (Optional): Object - second object to ignore or objNull: Default: objNull
sortMode (Optional): Boolean - true: closest to furthest, false: furthest to closest. Default: true
maxResults (Optional): Number - Max results to return. -1 to return every result. Default: 1
LOD1 (Optional): String (added in v1.51.131920) - Primary LOD to look for intersection. Default: "VIEW"
LOD2 (Optional): String (added in v1.51.131920) - Secondary LOD to look for intersection. Default: "FIRE"
returnUnique (Optional): Boolean (added in v1.69.140138) - When false, all intersections in the same object are included not just the 1st one. Default: true
Return Value:
Return value needed

Examples

Example 1:
_intersections = lineIntersectsSurfaces [eyePos player, aimPos chopper, player, chopper, true, -1];
Example 2:
arrow = "Sign_Arrow_F" createVehicle [0,0,0]; onEachFrame { _ins = lineIntersectsSurfaces [ AGLToASL positionCameraToWorld [0,0,0], AGLToASL positionCameraToWorld [0,0,1000], player ]; if (count _ins == 0) exitWith {arrow setPosASL [0,0,0]}; arrow setPosASL (_ins select 0 select 0); arrow setVectorUp (_ins select 0 select 1); hintSilent str _ins; };
Example 3:
This should detect glass windows and wire fences (since Arma v1.51.131920): wirefence = "Land_New_WiredFence_5m_F" createVehicle position player; arrow = "Sign_Arrow_F" createVehicle [0,0,0]; onEachFrame { _ins = lineIntersectsSurfaces [ AGLToASL positionCameraToWorld [0,0,0], AGLToASL positionCameraToWorld [0,0,1000], player, objNull, true, 1, "GEOM", "NONE" ]; if (count _ins == 0) exitWith {arrow setPosASL [0,0,0]}; arrow setPosASL (_ins select 0 select 0); arrow setVectorUp (_ins select 0 select 1); hintSilent str _ins; };

Additional Information

See also:
See also needed

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 August 27, 2015 - 12:44 (UTC)
Killzone Kid
Fast check if object is in a house:KK_fnc_inHouse = { lineIntersectsSurfaces [ getPosWorld _this, getPosWorld _this vectorAdd [0, 0, 50], _this, objNull, true, 1, "GEOM", "NONE" ] select 0 params ["","","","_house"]; if (_house isKindOf "House") exitWith {true}; false }; onEachFrame {hintSilent str (player call KK_fnc_inHouse)};
Posted on January 30, 2016 - 20:10 (UTC)
Pierre MGI
This command is useful to place weaponholder (and then spawned weapons) on floor of houses, correcting the spawn position (can_collide) to intersect with floor: MGI_fnc_setPosAGLS = { params ["_obj", "_pos"]; _wh_pos = getPosASL _obj; _pos set [2, (ATLtoASL _pos select 2)-10]; _ins = lineIntersectsSurfaces [_wh_pos, _pos,_obj,objNull, true,1,"VIEW","FIRE"]; _surface_distance = if (count _ins > 0) then [{(_ins select 0 select 0) distance _wh_pos},{0}]; _wh_pos set [2, (getPosASL _obj select 2) - (_surface_distance)]; _weaponholder setPosASL _wh_pos; }; After the position (_pos) obtained in BIS_fnc_buidingPositions array: _weaponholder = createVehicle ["groundWeaponHolder", _pos, [], 0, "CAN_COLLIDE"]; [_weaponholder,_pos] call MGI_fnc_setPosAGLS; Then fill your weapon holder.