vectorCrossProduct: Difference between revisions
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____________________________________________________________________________________________ | ____________________________________________________________________________________________ | ||
| vector1 | | vector1 [[vectorCrossProduct]] vector2 |SYNTAX= | ||
|p1= vector1: [[Array]] - in form [x, y, z] |PARAMETER1= | |p1= vector1: [[Array]] - in form [x, y, z] |PARAMETER1= | ||
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|x1= <code>_vector = [1,1,1] [[vectorCrossProduct]] [2,2,2];</code> |EXAMPLE1= | |x1= <code>_vector = [1,1,1] [[vectorCrossProduct]] [2,2,2];</code> |EXAMPLE1= | ||
|x2= <code>_vectorUp = [0,1,0] [[vectorCrossProduct]] [-1,0,0]; //[0,-0,1]</code> |EXAMPLE2= | |x2= <code>_vectorUp = [0,1,0] [[vectorCrossProduct]] [-1,0,0]; //[0,-0,1]</code> |EXAMPLE2= | ||
|x3= <code>_vectorSide = ([[vectorDir]] [[player]]) [[vectorCrossProduct]] ([[vectorUp]] [[player]]);</code> |EXAMPLE3= | |x3= <code>_vectorSide = ([[vectorDir]] [[player]]) [[vectorCrossProduct]] ([[vectorUp]] [[player]]);</code> |EXAMPLE3= | ||
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<!-- Note Section BEGIN --> | <!-- Note Section BEGIN --> | ||
<dd class="notedate">Posted on 28 Jun, 2014 | <dd class="notedate">Posted on 28 Jun, 2014 | ||
<dt class="note">[[]]<dd class="note"> | <dt class="note">[[User:ffur2007slx2_5| ffur2007slx2_5]] | ||
<dd class="note"> | |||
(ArmA3 1.22)Algorithm: | (ArmA3 1.22)Algorithm: | ||
<code> | <code>Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2]; | ||
Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2]; | Result = [(y1 * z2) – (z1 * y2),(z1 * x2) – (x1 * z2),(x1 * y2) – (y1 * x2)];</code> | ||
Result = [(y1 * z2) – (z1 * y2),(z1 * x2) – (x1 * z2),(x1 * y2) – (y1 * x2)]; | |||
</code> | |||
It is recommended to use [[vectorCrossProduct]] instead of [[BIS_fnc_crossProduct]]. | It is recommended to use [[vectorCrossProduct]] instead of [[BIS_fnc_crossProduct]]. | ||
<!-- Note Section END --> | <!-- Note Section END --> | ||
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<h3 style="display:none">Bottom Section</h3> | <h3 style="display:none">Bottom Section</h3> | ||
Revision as of 18:32, 19 May 2020
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:
- Uncategorised
Syntax
- Syntax:
- vector1 vectorCrossProduct vector2
- Parameters:
- vector1: Array - in form [x, y, z]
- vector2: Array - in form [x, y, z]
- 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:
- vectorAddvectorDiffvectorDotProductvectorCosvectorMagnitudevectorMagnitudeSqrvectorMultiplyvectorDistancevectorDistanceSqrvectorDirvectorUpsetVectorDirsetVectorUpsetVectorDirAndUpvectorNormalizedvectorFromTomatrixMultiplymatrixTranspose
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 28 Jun, 2014
- ffur2007slx2_5
-
(ArmA3 1.22)Algorithm:
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.