From 493194a1fa9a921df55c63e807933d9b1e7e4c54 Mon Sep 17 00:00:00 2001
From: Steven Petryk <petryk.steven@gmail.com>
Date: Fri, 31 May 2024 16:49:28 -0700
Subject: [PATCH] Avoid rendering zero-length vectors in VectorField

Closes #164
---
 src/display/Plot/VectorField.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/display/Plot/VectorField.tsx b/src/display/Plot/VectorField.tsx
index c62ad3b4..c539b0be 100644
--- a/src/display/Plot/VectorField.tsx
+++ b/src/display/Plot/VectorField.tsx
@@ -37,6 +37,10 @@ export function VectorField({
         const tail: vec.Vector2 = [x, y]
         const trueOffset = xy([x, y])
         const trueMag = vec.mag(trueOffset)
+
+        // Avoid rendering zero-length vectors
+        if (trueMag === 0) continue
+
         const scaledOffset = vec.scale(vec.normalize(trueOffset), Math.min(trueMag, step * 0.75))
         const tip = vec.add(tail, scaledOffset)