From 56e401196acb6f566dbe9cc3b5d014d25ec4c9af Mon Sep 17 00:00:00 2001
From: Jan Petykiewicz <jan@mpxd.net>
Date: Tue, 31 Mar 2026 00:25:14 -0700
Subject: [PATCH] [PathTool] fix pathtool L-shape

---
 masque/builder/tools.py          | 11 ++++++++---
 masque/test/test_renderpather.py | 11 +++++++++++
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/masque/builder/tools.py b/masque/builder/tools.py
index 68e89df..f8779bd 100644
--- a/masque/builder/tools.py
+++ b/masque/builder/tools.py
@@ -1244,7 +1244,7 @@ class PathTool(Tool, metaclass=ABCMeta):
             port_names: tuple[str, str] = ('A', 'B'),
             **kwargs,                           # noqa: ARG002 (unused)
             ) -> Library:
-        out_port, dxy = self.planL(
+        out_port, _data = self.planL(
             ccw,
             length,
             in_ptype=in_ptype,
@@ -1252,7 +1252,12 @@ class PathTool(Tool, metaclass=ABCMeta):
             )
 
         tree, pat = Library.mktree(SINGLE_USE_PREFIX + 'traceL')
-        pat.path(layer=self.layer, width=self.width, vertices=[(0, 0), (length, 0)])
+        vertices: list[tuple[float, float]]
+        if ccw is None:
+            vertices = [(0.0, 0.0), (length, 0.0)]
+        else:
+            vertices = [(0.0, 0.0), (length, 0.0), tuple(out_port.offset)]
+        pat.path(layer=self.layer, width=self.width, vertices=vertices)
 
         if ccw is None:
             out_rot = pi
@@ -1263,7 +1268,7 @@ class PathTool(Tool, metaclass=ABCMeta):
 
         pat.ports = {
             port_names[0]: Port((0, 0), rotation=0, ptype=self.ptype),
-            port_names[1]: Port(dxy, rotation=out_rot, ptype=self.ptype),
+            port_names[1]: Port(out_port.offset, rotation=out_rot, ptype=self.ptype),
             }
 
         return tree
diff --git a/masque/test/test_renderpather.py b/masque/test/test_renderpather.py
index ee04671..3ad0d95 100644
--- a/masque/test/test_renderpather.py
+++ b/masque/test/test_renderpather.py
@@ -119,3 +119,14 @@ def test_renderpather_rename_port(rpather_setup: tuple[RenderPather, PathTool, L
     assert_allclose(path_shape.vertices, [[0, 0], [0, -10], [0, -20]], atol=1e-10)
     assert "new_start" in rp.ports
     assert_allclose(rp.ports["new_start"].offset, [0, -20], atol=1e-10)
+
+
+def test_pathtool_traceL_bend_geometry_matches_ports() -> None:
+    tool = PathTool(layer=(1, 0), width=2, ptype="wire")
+
+    tree = tool.traceL(True, 10)
+    pat = tree.top_pattern()
+    path_shape = cast("Path", pat.shapes[(1, 0)][0])
+
+    assert_allclose(path_shape.vertices, [[0, 0], [10, 0], [10, 1]], atol=1e-10)
+    assert_allclose(pat.ports["B"].offset, [10, 1], atol=1e-10)