From b5e17a3b9e53ce545a87394132da26b3f9ba44e0 Mon Sep 17 00:00:00 2001
From: n3040 <ijustforregister@gmail.com>
Date: Mon, 20 Feb 2023 21:09:26 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E4=B8=80=E4=B8=AAbug?=
 =?UTF-8?q?=E3=80=82?=
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---
 dem.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dem.py b/dem.py
index 19a636f..36a6c26 100644
--- a/dem.py
+++ b/dem.py
@@ -275,7 +275,7 @@ class Dem:
         side_width = toml_dict["parameter"]["side_width"]  # 边线宽度
         _line_angel = math.atan((point_y_e - point_y_s) / (point_x_e - point_x_s))
         if point_x_e < point_x_s:
-            line_angel = _line_angel + math.pi / 2
+            line_angel = _line_angel + math.pi
         else:
             line_angel = _line_angel
         left_offset_x = side_width * math.cos(line_angel + math.pi / 2)