Add optional angle parameter

Co-authored-by: frank-bp <[email protected]>

gdshelpers/parts/waveguide.py

@@ -546,17 +546,17 @@ def add_straight_segment_until_level_of_port(self, port, **line_kw):
         self.add_straight_segment_to_intersection(port.origin, port.angle - np.pi / 2, **line_kw)
         return self
 
-    def add_left(self, bend_radius):
+    def add_left_bend(self, radius, angle=np.pi/2):
         """
-        Add a 90° left turn with the given bend radius
+        Add a left turn (90° or as defined by angle) with the given bend radius
         """
-        return self.add_bend(0.5*np.pi, bend_radius)
+        return self.add_bend(angle, radius)
 
-    def add_right(self, bend_radius):
+    def add_right_bend(self, radius, angle=np.pi/2):
         """
-        Add a 90° right turn with the given bend radius
+        Add a right turn (90° or as defined by angle) with the given bend radius
         """
-        return self.add_bend(-0.5*np.pi, bend_radius)
+        return self.add_bend(-angle, radius)
 
 
 def _example():