intersect: Difference between revisions

From Bohemia Interactive Community
Jump to navigation Jump to search
No edit summary
(example)
Line 29: Line 29:
____________________________________________________________________________________________
____________________________________________________________________________________________
   
   
|x1= <pre>[_tank, "VIEW"] intersect [[1500, 1500, 2], [1550, 1500, 2]]</pre> |= Example 1
|x1= <code>[_tank, "VIEW"] [[intersect]] [[1500, 1500, 2], [1550, 1500, 2]];</code> |= Example 1
 
|x2= <code>sphere = "Sign_Sphere10cm_F" [[createVehicle]] [0,0,0];
[[onEachFrame]] {
_begPos = [[positionCameraToWorld]] [0,0,0];
_begPosASL = [[AGLToASL]] _begPos;
_endPos = [[positionCameraToWorld]] [0,0,1000];
_endPosASL = [[AGLToASL]] _endPos;
_ins = [[lineIntersectsSurfaces]] [_begPosASL, _endPosASL, [[player]], [[objNull]], [[true]], 1, "GEOM", "NONE"];
[[if]] (_ins [[isEqualTo]] []) [[exitWith]] {sphere [[setPosASL]] [0,0,0];[]};
_ins [[select]] 0 [[params]] ["_pos", "_norm", "_obj", "_parent"];
[[if]] !([[getModelInfo]] _parent [[select]] 2) [[exitWith]] {sphere [[setPosASL]] [0,0,0]; []};
_ins2 = [_parent, "GEOM"] [[intersect]] [_begPos, _endPos];
[[if]] (_ins2 [[isEqualTo]] []) [[exitWith]] {sphere [[setPosASL]] [0,0,0]; []};
_ins2 [[select]] 0 [[params]] ["_name", "_dist"];
[[if]] (_begPos [[distance]] [[ASLToAGL]] _pos < (_dist + 0.05)) [[exitWith]] {sphere [[setPosASL]] [0,0,0];[]};
_posASL = _begPosASL [[vectorAdd]] ((_begPosASL [[vectorFromTo]] _endPosASL) [[vectorMultiply]] _dist);
[[drawIcon3D]] ["", [1,1,1,1], [[ASLToAGL]] _posASL, 0, 0, 0, _name, 1, 0.03, "PuristaMedium"];
sphere [[setPosASL]] _posASL;
};</code> |= Example 2
____________________________________________________________________________________________
____________________________________________________________________________________________



Revision as of 22:42, 20 August 2015

-wrong parameter ("Arma") defined!-1.00
Hover & click on the images for description

Description

Description:
Finds named selections in object which are in specified LOD, intersected by given section of a line. Return value is in the form of [selection, distance]. Multiple returned arrays are nested within a single array. No intersection returns []. lodName could be one of the following:
  • "FIRE"
  • "VIEW"
  • "GEOM"
  • "IFIRE" - ("I" stands for Indirect, almost the same as FIRE)
Groups:
Uncategorised

Syntax

Syntax:
[object, lodName] intersect [begPos, endPos]
Parameters:
[object, lodName]: Array
object: Object
lodName: String
[begPos, endPos] : Array
begPos: Array - format PositionAGL
endPos: Array - format PositionAGL
Return Value:
Array - array of intersections in format: [[selection, distance],...], where
  • selection - name of intersected selection
  • distance - distance from begPos
The results are also sorted, closest selection first

Examples

Example 1:
[_tank, "VIEW"] intersect [[1500, 1500, 2], [1550, 1500, 2]];
Example 2:
sphere = "Sign_Sphere10cm_F" createVehicle [0,0,0]; onEachFrame { _begPos = positionCameraToWorld [0,0,0]; _begPosASL = AGLToASL _begPos; _endPos = positionCameraToWorld [0,0,1000]; _endPosASL = AGLToASL _endPos; _ins = lineIntersectsSurfaces [_begPosASL, _endPosASL, player, objNull, true, 1, "GEOM", "NONE"]; if (_ins isEqualTo []) exitWith {sphere setPosASL [0,0,0];[]}; _ins select 0 params ["_pos", "_norm", "_obj", "_parent"]; if !(getModelInfo _parent select 2) exitWith {sphere setPosASL [0,0,0]; []}; _ins2 = [_parent, "GEOM"] intersect [_begPos, _endPos]; if (_ins2 isEqualTo []) exitWith {sphere setPosASL [0,0,0]; []}; _ins2 select 0 params ["_name", "_dist"]; if (_begPos distance ASLToAGL _pos < (_dist + 0.05)) exitWith {sphere setPosASL [0,0,0];[]}; _posASL = _begPosASL vectorAdd ((_begPosASL vectorFromTo _endPosASL) vectorMultiply _dist); drawIcon3D ["", [1,1,1,1], ASLToAGL _posASL, 0, 0, 0, _name, 1, 0.03, "PuristaMedium"]; sphere setPosASL _posASL; };

Additional Information

See also:
lineIntersectsSurfacesterrainIntersectterrainIntersectASLlineIntersectslineIntersectsWithlineIntersectsObjs

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

Notes

Posted on Jul 25, 2007 - 08:37
ManDay
The most common LOD is "FIRE", which identifies the most detailled hitbox used for ammunition.
Posted on Mar 27, 2014 - 14:52
ffur2007slx2_5
Example (In ArmA3 ver 1.14) display returned arrays on cursor entities:
Sto = []; Fn = { { Sto set [_foreachindex,[cursortarget,_x] intersect [(asltoagl (eyepos player)),(screentoworld [0.5,0.5])]]; } foreach ["FIRE","VIEW","GEOM","IFIRE"]; hintsilent format ["FIRE: %1, VIEW: %2, GEOM: %3, IFIRE: %4",Sto select 0,Sto select 1,Sto select 2,Sto select 3]; }; ["sample_id","onEachFrame","Fn"] call BIS_fnc_addStackedEventHandler; Return FIRE: [something], VIEW: [something], GEOM: [something], IFIRE: [something].

Bottom Section

Posted on August 20, 2015 - 18:34 (UTC)
Killzone Kid
intersect will spam .rpt if passed to it object has no skeleton. Use getModelInfo to filter out those objects.