From a901e4307169e11d83bfbbfc321b09bb47d10bc2 Mon Sep 17 00:00:00 2001
From: Filippo Luca Ferretti <filippoluca.ferretti@outlook.com>
Date: Thu, 14 Nov 2024 13:07:57 +0100
Subject: [PATCH] Speed up `js.link.idxs_to_names`

---
 src/jaxsim/api/link.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/jaxsim/api/link.py b/src/jaxsim/api/link.py
index 25da8f74c..23b4d3732 100644
--- a/src/jaxsim/api/link.py
+++ b/src/jaxsim/api/link.py
@@ -4,6 +4,7 @@
 import jax
 import jax.numpy as jnp
 import jax.scipy.linalg
+import numpy as np
 
 import jaxsim.api as js
 import jaxsim.rbda
@@ -96,7 +97,7 @@ def idxs_to_names(
         The names of the links.
     """
 
-    return tuple(idx_to_name(model=model, link_index=idx) for idx in link_indices)
+    return tuple(np.array(model.kin_dyn_parameters.link_names)[list(link_indices)])
 
 
 # =========