From 08ebe1134ce533b5ae9d10f0d14ef5ad98d14b9b Mon Sep 17 00:00:00 2001
From: Jeffrey Wardman <jeffrey.w@zydex.com>
Date: Wed, 8 May 2024 14:51:07 +1000
Subject: [PATCH] handle empty axis for rotation

---
 vedo/transformations.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vedo/transformations.py b/vedo/transformations.py
index f18d764d..01fdedef 100644
--- a/vedo/transformations.py
+++ b/vedo/transformations.py
@@ -423,12 +423,15 @@ def rotate(self, angle, axis=(1, 0, 0), point=(0, 0, 0), rad=False) -> Self:
             ```
             ![](https://vedo.embl.es/images/feats/rotate_axis.png)
         """
+        if all(axis == 0):
+            return self
         if not angle:
             return self
         if rad:
             anglerad = angle
         else:
             anglerad = np.deg2rad(angle)
+        
         axis = np.asarray(axis) / np.linalg.norm(axis)
         a = np.cos(anglerad / 2)
         b, c, d = -axis * np.sin(anglerad / 2)