selectionVectorDirAndUp

{{RV|type=command

|game1= arma3 |version1= 2.06

|arg= global

|descr= Searches for selection in the object model's LOD level, and returns the Direction and Up vectors in model space.

|gr1= Object Manipulation

|s1= object selectionVectorDirAndUp [selectionName, LOD]

|p1= object: Object

|p2= selectionName: String - selection name (see selectionNames)

|p3= LOD: String or Number - the LOD that contains the selection:

• String - can be one of:
  • "Memory"
  • "Geometry"
  • "FireGeometry"
  • "LandContact"
  • "HitPoints"
  • "ViewGeometry"
• Number - command searches for a LOD with the similar resolution (see allLODs).

|r1= Array with [vectorDir, vectorUp] - vectors are in model space

• vectorDir: [[Vector3D]
• vectorUp: [[Vector3D]

|x1=

vehicle player selectionVectorDirAndUp ["drivewheel_axis", "FireGeometry"] params ["_axisVectorDir", "_axisVectorUp"];

|x2= Get the player's barrel end (_p1 being muzzle end's ASL position):

onEachFrame { private _weapon = currentWeapon player; if (_weapon == "") exitWith {}; // update weapon info upon weapon switch if (_weapon != player getVariable ["last_weapon", "?"]) then { private _cfg = configFile >> "CfgWeapons" >> _weapon; private _model = getText(_cfg >> "model"); private _simpleObject = createSimpleObject [_model, [0,0,0], true]; private _offset = _simpleObject selectionPosition [getText (_cfg >> "muzzlePos"), "memory"]; _offset = _offset apply { [_x] }; deleteVehicle _simpleObject; player setVariable ["offset", _offset]; player setVariable ["last_weapon", _weapon]; player setVariable ["proxy", [ "proxy:\a3\characters_f\proxies\pistol.001", "proxy:\a3\characters_f\proxies\weapon.001", "proxy:\a3\characters_f\proxies\launcher.001", "proxy:\a3\characters_f\proxies\binoculars.001" ] select (([1, 4, 4096] find getNumber (_cfg >> "type")) + 1) ]; }; _offset = player getVariable ["offset", []]; private _proxy = player getVariable ["proxy", ""]; // using LOD resolution 1 (and lod index 0) - this is not always reliable // you should manually check allLODs and find the most suitable LOD (smallest res LOD usually has the best accuracy, but it might be slow too) player selectionVectorDirAndUp [_proxy, 1] params ["_vy", "_vz"]; private _pos = selectionPosition [player, _proxy, 0]; private _vx = _vy vectorCrossProduct _vz; private _mat = matrixTranspose [_vx, _vy, _vz]; _pos = _pos vectorAdd flatten (_mat matrixMultiply _offset); private _p1 = player modelToWorldVisualWorld _pos; private _p2 = _p1 vectorAdd (player vectorModelToWorldVisual (_vx vectorMultiply -1000)); drawLine3D [ASLToAGL _p1, ASLToAGL _p2, [1,0,0,1]]; };

|seealso= selectionPosition selectionNames allLODs }}