From 71dffd8fa0d2fd8fcf017c3904d0db29b54f34d7 Mon Sep 17 00:00:00 2001
From: Martin Fleischmann <martin@martinfleischmann.net>
Date: Mon, 1 May 2023 21:07:10 +0200
Subject: [PATCH] DOC: add note to COINS re undirected graphs

---
 momepy/coins.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/momepy/coins.py b/momepy/coins.py
index fc1c0c9e..f3c79346 100644
--- a/momepy/coins.py
+++ b/momepy/coins.py
@@ -57,6 +57,12 @@ class COINS:
     To get a Series encoding stroke groups:
 
     >>> stroke_attr = coins.stroke_attribute()
+
+    Notes
+    -----
+    The LineStrings of the ``edge_gdf`` are not expected to overlap. If you are creating
+    it using OSMnx, don't forget to cast the graph to undirected using
+    ``osmnx.get_undirected(G)`` prior converting it to a GeoDataFrame.
     """
 
     def __init__(self, edge_gdf, angle_threshold=0):