From: Jiri Vlasak <hubacji1@fel.cvut.cz>
Date: Mon, 19 Jul 2021 11:55:17 +0000 (+0200)
Subject: Add line heading getter
X-Git-Tag: v0.6.0~3^2~10
X-Git-Url: http://rtime.felk.cvut.cz/gitweb/hubacji1/bcar.git/commitdiff_plain/aa8742ecf9e074d6be37936261fba3b1bb684532

Add line heading getter
---

diff --git a/incl/bcar.hh b/incl/bcar.hh
index 0360996..d62727d 100644
--- a/incl/bcar.hh
+++ b/incl/bcar.hh
@@ -117,6 +117,8 @@ public:
 
 	double len() const;
 
+	double h() const;
+
 	friend std::ostream& operator<<(std::ostream& out, Line const& li);
 };
 
diff --git a/src/bcar.cc b/src/bcar.cc
index 8825fb7..d0d40a1 100644
--- a/src/bcar.cc
+++ b/src/bcar.cc
@@ -222,6 +222,12 @@ Line::len() const
 	return this->b_.edist(this->e_);
 }
 
+double
+Line::h() const
+{
+	return atan2(this->e_.y() - this->b_.y(), this->e_.x() - this->b_.x());
+}
+
 std::ostream&
 operator<<(std::ostream& out, Line const& li)
 {