vectorDotProduct: Difference between revisions

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|gr2= Math - Vectors
|gr2= Math - Vectors


|descr= Dot product of two 3D vectors.
|descr= Dot product of two 3D vectors.<br>
{{Feature|GVI|arma3|2.14|Since {{GVI|arma3|2.14|size= 0.75}} any count of numbers is valid, but both arrays must be same length.<br>
Before {{GVI|arma3|2.14|size= 0.75}}, the first argument had to be vector 3D, or {{GVI|arma3|2.00|size= 0.75}} 2D (With z coordinate defaulted to 0)}}
 


|s1= vector1 [[vectorDotProduct]] vector2
|s1= vector1 [[vectorDotProduct]] vector2


|p1= vector1: [[Array]] - vector 3D or 2D (since Arma 3 v2.00, z coordinate is defaulted to 0)
|p1= vector1: [[Array]] of [[Number]]s
 
|p2= vector2: [[Array]] of [[Number]]s
|p2= vector2: [[Array]] - vector 3D or 2D (since Arma 3 v2.00, z coordinate is defaulted to 0)


|r1= [[Number]]
|r1= [[Number]]


|x1= <code>_dot = [1,0,1] [[vectorDotProduct]] [0,0,2];</code>
|x1= <sqf>_dot = [1,0,1] vectorDotProduct [0,0,2];</sqf>


|seealso= [[vectorAdd]] [[vectorDiff]] [[vectorCrossProduct]] [[vectorCos]] [[vectorMagnitude]] [[vectorMagnitudeSqr]] [[vectorMultiply]] [[vectorDistance]] [[vectorDistanceSqr]] [[vectorDir]] [[vectorUp]] [[setVectorDir]] [[setVectorUp]] [[setVectorDirAndUp]] [[vectorNormalized]] [[vectorFromTo]] [[matrixMultiply]], [[matrixTranspose]]
|seealso= [[vectorAdd]] [[vectorDiff]] [[vectorCrossProduct]] [[vectorCos]] [[vectorMagnitude]] [[vectorMagnitudeSqr]] [[vectorMultiply]] [[vectorDistance]] [[vectorDistanceSqr]] [[vectorDir]] [[vectorUp]] [[setVectorDir]] [[setVectorUp]] [[setVectorDirAndUp]] [[vectorNormalized]] [[vectorFromTo]] [[matrixMultiply]] [[matrixTranspose]]
}}
}}


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<dd class="note">
<dd class="note">
{{GVI|arma3|1.22}} Algorithm:
{{GVI|arma3|1.22}} Algorithm:
<code>Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2];
<sqf>
Result = (x1 * x2) + (y1 * y2) + (z1 * z2);</code>
Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2];
Result = (x1 * x2) + (y1 * y2) + (z1 * z2);
</sqf>
It is recommended to use [[vectorDotProduct]] instead of [[BIS_fnc_dotProduct]].
It is recommended to use [[vectorDotProduct]] instead of [[BIS_fnc_dotProduct]].
</dl>
</dl>

Latest revision as of 16:32, 18 March 2025

Arma 3 logo black.png 1.22
Hover & click on the images for description

Description

Description:
Dot product of two 3D vectors.
Since Arma 3 logo black.png 2.14 any count of numbers is valid, but both arrays must be same length.
Before Arma 3 logo black.png 2.14, the first argument had to be vector 3D, or Arma 3 logo black.png 2.00 2D (With z coordinate defaulted to 0)
Groups:
Math - Vectors

Syntax

Syntax:
vector1 vectorDotProduct vector2
Parameters:
vector1: Array of Numbers
vector2: Array of Numbers
Return Value:
Number

Examples

Example 1:
_dot = [1,0,1] vectorDotProduct [0,0,2];

Additional Information

See also:
vectorAdd vectorDiff vectorCrossProduct 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 or on the Forums.
Only post proven facts here! Add Note
Posted on 28 Jun, 2014
ffur2007slx2_5
Arma 3 logo black.png 1.22 Algorithm:
Vector1 = [x1,y1,z1]; Vector2 = [x2,y2,z2]; Result = (x1 * x2) + (y1 * y2) + (z1 * z2);
It is recommended to use vectorDotProduct instead of BIS_fnc_dotProduct.
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