vectorCrossProduct

1.22

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Description

Description:

Cross product of two 3D vectors.
In layman's terms, if you have a polygon (surface) defined by 3 points, you can find a normal to it (just like terrain surfaceNormal). To invert direction of the normal, swap arguments around.

Groups:

Math - Vectors

Syntax

Syntax:

vector1 vectorCrossProduct vector2

Parameters:

vector1: Vector3D or Vector2D - since Arma 3 v2.00, z coordinate is defaulted to 0 if not provided

vector2: Vector3D or Vector2D - since Arma 3 v2.00, z coordinate is defaulted to 0 if not provided

Return Value:

Array - vector [x, y, z]

Examples

Example 1:

_vector = [1,1,1] vectorCrossProduct [2,2,2];

Example 2:

_vectorUp = [0,1,0] vectorCrossProduct [-1,0,0]; //[0,-0,1]

Example 3:

_vectorSide = (vectorDir player) vectorCrossProduct (vectorUp player);

Additional Information

See also:

vectorAdd vectorDiff vectorDotProduct vectorCos vectorMagnitude vectorMagnitudeSqr vectorMultiply vectorDistance vectorDistanceSqr vectorDir vectorUp setVectorDir setVectorUp setVectorDirAndUp vectorNormalized vectorFromTo matrixMultiply matrixTranspose

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord.
Only post proven facts here! Add Note

ffur2007slx2_5 - c

Posted on Jun 28, 2014 - 09:12 (UTC)

1.22Algorithm:

Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2]; Result = [(y1 * z2) - (z1 * y2),(z1 * x2) - (x1 * z2),(x1 * y2) - (y1 * x2)];

It is recommended to use vectorCrossProduct instead of BIS_fnc_crossProduct.