Bugfix: medial axis missed some segments. #2144

xs/src/Line.cpp

@@ -100,6 +100,14 @@ Line::atan2_() const
     return atan2(this->b.y - this->a.y, this->b.x - this->a.x);
 }
 
+double
+Line::orientation() const
+{
+    double angle = this->atan2_();
+    if (angle < 0) angle = 2*PI + angle;
+    return angle;
+}
+
 double
 Line::direction() const
 {