From cbe306782020c271108fa2765c67101fa90b5477 Mon Sep 17 00:00:00 2001
From: fdai7322 <christoph-anton.schwierz@informatik.hs-fulda.de>
Date: Mon, 10 Jun 2024 18:48:57 +0200
Subject: [PATCH] matrixProduct()
---
src/cg/utils.ts | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/src/cg/utils.ts b/src/cg/utils.ts
index fc005a4..db0243a 100644
--- a/src/cg/utils.ts
+++ b/src/cg/utils.ts
@@ -72,4 +72,21 @@ export function vecCrossProduct(vecOne: Array<number>, vecTwo: Array<number>){
return crossProduct;
}
+
+export function matrixProduct(a: Array<number>, b: Array<number>){
+ // for 3x3 matrix only
+ //[
+ // 0 1 2
+ // 3 4 5
+ // 6 7 8
+ // ]
+ return [
+ //row 1
+ a[0]*b[0] + a[1]*b[3] + a[2]*b[6], a[0]*b[1] + a[1]*b[4] + a[2]*b[7], a[0]*b[2] + a[1]*b[5] + a[2]*b[8],
+ //row 2
+ a[3]*b[0] + a[4]*b[3] + a[5]*b[6], a[3]*b[1] + a[4]*b[4] + a[5]*b[7], a[3]*b[2] + a[4]*b[5] + a[5]*b[8],
+ //row 3
+ a[6]*b[0] + a[7]*b[3] + a[8]*b[6], a[6]*b[1] + a[7]*b[4] + a[8]*b[7], a[6]*b[2] + a[7]*b[5] + a[8]*b[8],
+ ]
+}
//
\ No newline at end of file
--
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