vectorDotProduct: Difference between revisions

Latest revision as of 16:32, 18 March 2025

1.22

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Description

Description:: Dot product of two 3D vectors.

2.14
Since 2.14 any count of numbers is valid, but both arrays must be same length.
Before 2.14, the first argument had to be vector 3D, or 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: 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.

@@ Line 1: / Line 1: @@
 {{RV|type=command
-| arma3
+|game1= arma3
+|version1= 1.22
-|1.22
+|gr2= Math - Vectors
-|gr2= Math - 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)}}
-| Dot product of two 3D vectors.
-| vector1 [[vectorDotProduct]] vector2
+|s1= vector1 [[vectorDotProduct]] vector2
-|p1= vector1: [[Array]] - vector 3D or 2D (since Arma 3 v1.99.146539, 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 v1.99.146539, z coordinate is defaulted to 0)
+|r1= [[Number]]
-| [[Number]]
+|x1= <sqf>_dot = [1,0,1] vectorDotProduct [0,0,2];</sqf>
-|x1= <code>_dot = [1,0,1] [[vectorDotProduct]] [0,0,2];</code>
-| [[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]]
 }}
 <dl class="command_description">
-<!-- Note Section BEGIN -->
+<dt></dt>
 <dd class="notedate">Posted on 28 Jun, 2014</dd>
 <dt class="note">[[User:ffur2007slx2_5| ffur2007slx2_5]]</dt>
 <dd class="note">
-({{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]].
-<!-- Note Section END -->
 </dl>