From ce91ba265f67964ff9616f18c121e0e2b848523b Mon Sep 17 00:00:00 2001
From: Martin Fleischmann <martin@martinfleischmann.net>
Date: Wed, 27 Nov 2024 22:27:02 +0100
Subject: [PATCH] BUG: fix corner case of empty intersection in streetscape
 (#674)

---
 momepy/streetscape.py | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/momepy/streetscape.py b/momepy/streetscape.py
index 4cb9e342..8df25020 100644
--- a/momepy/streetscape.py
+++ b/momepy/streetscape.py
@@ -900,12 +900,12 @@ def _compute_sigthlines_plot_indicators_one_side(
                 match_geom = None
 
                 if not gdf_items.empty:
-                    _distances = gdf_items.exterior.intersection(
-                        sightline_geom
-                    ).distance(s_pt1)
-                    match_id = _distances.idxmin()
-                    match_distance = _distances.min()
-                    match_geom = gdf_items.geometry[match_id]
+                    intersection = gdf_items.exterior.intersection(sightline_geom)
+                    if not intersection.is_empty.all():
+                        _distances = intersection.distance(s_pt1)
+                        match_id = _distances.idxmin()
+                        match_distance = _distances.min()
+                        match_geom = gdf_items.geometry[match_id]
 
                 parcel_ids = []
                 # ---------------