From f35e9b57910b839e6e0d5176bf9abdf8dd1902e1 Mon Sep 17 00:00:00 2001
From: Arvi <ag4571@nyu.edu>
Date: Mon, 19 Aug 2024 14:57:04 -0400
Subject: [PATCH] Fix winding number 2d computation

---
 src/winding_number.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/winding_number.cpp b/src/winding_number.cpp
index a167799d..49c92af1 100644
--- a/src/winding_number.cpp
+++ b/src/winding_number.cpp
@@ -48,7 +48,10 @@ npe_arg(o, npe_matches(v))
 
 
 npe_begin_code()
-  assert_valid_3d_tri_mesh(v, f);
+  if (v.cols() == 3)
+    assert_valid_3d_tri_mesh(v, f);
+  else
+    assert_cols_equals(f, 2, "f");
   assert_cols_match(v, o, "v", "o");
   Eigen::MatrixXd v_copy = v.template cast<double>();
   Eigen::MatrixXi f_copy = f.template cast<int>();